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THE EXPANSION OF THE QARTLI WIND FARM - A STUDY OF OPPORTUNITY
The Romanian Agency for International Development Cooperation - RoAid
GEORGIA
Analizǎ Oportunitate (Studiu Fezabilitate Faza I) extindere parc eolian Qartli - continuare analizǎ sector energetic Georgia
A Review of the Georgian Energy Sector and Development Opportunities - Wind Energy Potential in Georgia
The study was financed by the Government of Romania, through The Romanian Agency for International Development Cooperation - RoAid, as part of the 2019 Official Development Assistance Program
Studiul a fost realizat cu sprijinul Guvernului României prin finanțarea oferită de către Agenția de Cooperare Internațională pentru Dezvoltare – RoAid, prin programul de Asistența Oficială pentru Dezvoltare aferent anului 2019
November 2019
THE EXPANSION OF THE QARTLI WIND FARM - A STUDY OF OPPORTUNITY
The Romanian Agency for International Development Cooperation - RoAid
Analizǎ Oportunitate (Studiu Fezabilitate Faza I) extindere parc eolian Qartli - continuare analizǎ sector energetic Georgia
A Review of the Georgian Energy Sector and Development Opportunities - Wind Energy Potential in Georgia
List of Contents
Executive Summary 6
General Considerations for Wind Turbine 9 Generator Supply
General Considerations for Wind Farm 10 Related Balance of Plant Works
10 MW Wind Farm - a review 16
20 MW Wind Farm - a review 21
50 MW Wind Farm - a review 26
Annexes
Wind Farm Assessment Report
10MW Calculated Annual Energy and Wind Turbine Generator Siting
20MW Calculated Annual Energy and Wind Turbine Generator Siting
Qartli1 Reference Calculated Annual Energy Analysis
Capital Expenditure Calculations
Operation and Maintenance Calculations
Financial Spreadsheets
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EXECUTIVE SUMMARY
This report looks into the opportunity to expand the wind power generation capacity around the Qartli wind farm (to be referred to as Qartli1), a 20MW operational wind farm situated in the Shida Kartli region of Georgia, near the town of Gori.
Qartli1, is a 20.7 MW wind farm, whose six Vestas 3.45 MW wind turbine generators have been operational since 2017. The plant, built by Vestas and China Nuclear Construction Ltd, with Mott Macdonald as supervisor, has seen capacity factors of 48-49% during its first years of operation. Its owner and developer, Georgia Energy Development Fund, has just successfully sold the project company in a public auction.
The available wind resource, as demonstrated by Qartli1’s 36-month operational performance and 30+ months of anemometer wind measurements, is ample enough to justify a feasible wind farm expansion in the adjacent area, for technical as well as financial considerations.
Ridgeline Industrial, www.ridgeline-industrial.ro, a Romanian energy consultancy, has undertaken this report in order to analyze the feasibility of expanding the Qartli1 Wind Farm in Georgia. The study is partly funded by RoAID, the Romanian Agency for International Development Cooperation. In 2018, Ridgeline Industrial has done a study called “A Review of the Georgian Energy Sector and Development Opportunities - Wind Energy Potential in Georgia”, which was funded with a RoAID grant. The study was presented to Her Excellency Natia Turnava, the Deputy Minister of Economy and Sustainable Development of Georgia, on 27-Feb-2019 by Mr. Cǎtǎlin Harnagea, RoAID’s Director General. Representatives of the Georgian Ministry of Economy and Sustainable Development, the Georgian Energy Development Fund, the Georgian National Energy and Water Supply Regulatory Commission, and other Georgian energy sector stakeholders joined Deputy Minister Turnava in the meeting.
The study, available for review on Ridgeline Industrial’s website, focused on ways to increase the share of wind energy in the Georgian energy mix, and was commissioned by RoAid to Ridgeline Industrial, in response to the Georgian energy sector stakeholders’ interest to increase energy security.
The next steps recommended included between others, an in-depth feasibility study for the expansion of the Qartli wind farm by 100 MW, and assistance with the implementation of a platform for transparent market monitoring and trading, for both natural gas and electricity.
The Georgian party expressed keen interest in undertaking further detailed analysis of advancing financially sustainable wind power projects in Georgia, as well as of market-based mechanisms to support renewable energy development. A letter sent by the Ministry of Economy and Sustainable Development of Georgia in April 2019, to RoAID, further illustrated this request, and Ridgeline Industrial was retained to conduct this follow-on report, the expansion of the existing wind-farm, as a concrete expression of the conclusions enunciated in the initial study.
The Expansion of the Qartli Wind Farm – A Study of Opportunity
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This report should constitute a useful document to attract investment in the expansion of the wind farm, whether from the Georgian Energy Development Fund or outside investors. The Georgian Energy Development Fund and its partners, as the main beneficiaries of this report, can take the conclusions resulted from the detailed wind resource and financial analyses illustrated here, and attract outside investment if they so wish, in order to develop approximately 100 MW in additional wind farm capacity.
Our assessment is that subject to an update of the existing Environmental Impact Assessment (Qartli 1), a further road survey, the development of a fully bankable financial model, and the selection of turbine supply and balance of plant contractors, the project should be ready to build within the next 6-9 months.
We recommend the expansion in phases of 10/20 MW in 2021, 20MW in 2022, and 50MW in 2023, as this schedule would fit with GES, the grid operator’s interconnection constraints at the nearby 110 kV sub-station in Gori.
The 10, 20, and 50 MW sections will address in detail wind farm production figures, capital expenditure, operational expenses, as well as a full array of financial indicators. We see project returns at 9-12%, and levered equity returns at 19-23%.
It is our understanding that newly developed wind farm projects will sign power purchase agreements with ESCO (the sole electricity market operator, 100% owned by the Government of Georgia). The PPA will have duration of ten years at USD 60/MWh, with no indexation.
Qartli1 was partly financed by the EBRD, with a 10-year non-recourse project finance loan, and as result we believe a similar contractual structure will be available for future projects. We understand that the EBRD has arranged a USD 22 million syndicated loan to the project company, Qartli Windfarm LLC, in 2016, for the development, construction and operation of the wind farm. The Bank itself has provided a USD 10m tranche (the A loan), and the remaining USD 12m B loan has been syndicated to the Dutch impact investors OIKOCREDIT, Ecumenical Development Co-operative Society U.A; Triodos Groenfonds N.V.; and the Luxembourg-based Green for Growth Fund (GGF). Each took a USD 4m share.
We assume the permitting process has been partly completed and could be expedited given the immediate adjacency to the Qartli 1 wind farm.
The 10, 20 and 50 MW-range projects were simulated using the latest generation GE “Cypress” (5.3MW), Nordex (4.5 MW), Siemens Gamesa (4.1MW), Vestas (4.2MW) and Enercon (5MW) wind turbine generators, while decommissioned GE 1.5 MW WTGs were considered for a 2nd hand option. Ruisi wind farm, a project developed by Georgia Energy Development Fund with a partner, has identified 8-9 turbine locations adjacent to Qartli1, and this is where the GE 1.5MW turbines are considered.
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The Wind Assessment Report in Annex 1 presents the detailed calculations, while Annexes 2 and 3 illustrate annual energy calculations and wind turbine generator siting for the 10 and 20 MW options. The 50MW option is analyzed financially based on estimated production values, with a good degree of confidence.
Annex 4 illustrates Qartli1, as the reference wind farm, for annual energy calculations and siting.
Detailed capital expenditure calculations and operation and maintenance can be found in Annexes 5 and 6, while the financial spreadsheets behind the selected financial model figures are presented in Annex 7.
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GENERAL CONSIDERATIONS FOR WIND TURBINE GENERATOR SUPPLY
Wind turbine generator (WTG) suppliers will generally make offers specific to the selected sites, which include supply of wind turbine generators, associated equipment, and related services.
A standard offer usually refers to the delivery, unloading, installation and commissioning of the wind turbine generator. The basic offer will include the wind turbine generator model specifications, electrical system specifications; internal step-up transformers are usually included with the equipment.
Other features such as manufacturer specific monitoring systems, nacelle logos, tower markings, basic aviation lights, access equipment such as service elevators, related safety features are also usually included.
Examples of WTG ancillary equipment: n Wind SCADA (Standard Supervisory Control and Data Acquisition) - the supervisory
control and data management system for the wind farm (also see the balance of plant considerations section)
n Country Specific Features such as O&M Manuals and SCADA interfaces, various certifications
Option examples to turbine supply contracts: n Reactive power features - these may allow the turbine to generate and consume reactive
power without active power generation n Met mast interfaces n Ice detection devices n Training
The Expansion of the Qartli Wind Farm – A Study of Opportunity
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GENERAL CONSIDERATIONS FOR WIND FARM RELATED BALANCE OF PLANT WORKS
Balance of plant (BoP) is the cost of all infrastructural and facilities of a wind-farm with an exception of the turbine and all its elements. The balance of plant therefore mainly comprises of the following items:
n Crane pads/ Hard standings n Foundations n Substation Civil and Electrical including Transformers n Road upgrades and Construction n Cabling to substation and Grid including SCADA
CRANE PADS / HARD STANDINGS
Crane Pads are prepared on each turbine location so as to facilitate and accommodate the heavy lifting operations of tower, turbine and blade installation. The type of ground conditions will determine how intensive or costly the pad construction is going to be. Pads are rated by their carrying capacity, which is the amount of load they can withstand. Typical ratings will range between 200KN/m2 to 500KN/m2 mainly to provide a strong solid base for heavy cranes to do the lifting the tower and wind turbine generator. Crane Pads are usually located adjacent to the turbine foundations to facilitate turbine components lifting during turbine erection and future maintenance or repairs. These are usually unpaved, compacted layers of crushed rock.
FOUNDATIONS
Foundations are the key and critical BoP element in terms of both cost and materials for any wind farm development project. Every turbine manufacturer has its own preferred foundation type but the most commonly used are the gravity and pile-reinforced types. A turbine foundation can be described as a mass of concrete and reinforcement cast accurately to connect to the turbine tower. The basic components of a foundation are:
n Concrete: Gravel, sand, cement; n Reinforcement: Steel; n Can/Basket Assembly;
The foundation should be strong enough to provide the required base support for the rest of the structures above it. Turbine foundations have generally been designed to be founded on the weathered schist or dense gravel with a minimum allowable bearing capacity of 500 KPa for a 2.3MW wind turbine. The quality of the foundation is of the utmost importance to the wind turbine structure. The design specifications have to be strictly adhered to. The pouring of concrete has to be done carefully to prevent surface and thermal cracking to ensure final foundation is of the required quality and standard.
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SUBSTATION CIVIL AND ELECTRICAL
Substation Civil
This encompasses the building housing the other electrical, safety and operational equipment. The building is usually constructed to the required acceptable standards, as determined by the electrical providers and legislation. All elements of the substation structure from foundations, plumbing for cables, walls and roofs are usually designed and constructed as per the required specifications and quality requirements. The substation building usually consists of a single story building with shallow foundations (if ground conditions permit). The size could be around 10m by 25m for a 20MW wind farm, plus external transformer area, which requires plinths for the equipment and an earthed fencing. The building may also be facilitated with toilets, sink and possibly shower facilities and so aseptic tank may be required.
Substation Electricals
The electrical components found in the substation are mainly for facilitation of the operational aspects of the wind-farm. This usually includes components such as switchgear, power protection systems and the electric meter. A transformer may also be part of the substation components to enable step up or step down of the power output. The size of these elements is dependent on the wind-farm power capacity.
ROAD UPGRADES AND CONSTRUCTION
Roads are essential in providing access to the wind farm and specifically to the turbine location sites within the wind farm. During construction, access is required to move in material and equipment to where they are required within the site. Roads are also useful during the lifetime of the wind-farm as they are used for operational maintenance purposes. It is necessary to construct site access roads, which are strong and durable enough to withstand the heavy traffic during construction. The roads should be able to provide safe and reliable access for the rest of the lifetime of the wind farm in all weather conditions. These are usually unpaved roads made of compacted layers of crushed rock, gravel, and high-density polyethelene geogrid layer. The roads of a wind-farm may be classified into two, namely:
Site access roads
These connect the wind-farm site to the nearest public road network. The length of which depends on the closest accessible public road network beyond the wind farm. In Scotland, this may often involve the upgrade of forestry or farmers track. The upgrade exercise may comprise reconstructing several kilometers of an existing road, re-building a bridge, or more commonly moving a few lamp posts.
The Expansion of the Qartli Wind Farm – A Study of Opportunity
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Wind-farm network roads
These are the roads, which connect each turbine location to other elements of BoP within the wind-farm. They are mainly used for access and transport of materials and equipment around the site, between the turbine locations, substation, and meteorological mast. In most wind farms the road length within the wind farm is normally between 0.4 and 0.5 km per turbine, but this length may vary depending on the characteristics of the terrain.
All roads have to be constructed prior to the erection of turbines. In some cases there may exist some roads, which would require some upgrading in order to meet the standard needed for trafficking of the turbine and other wind-farm components. The general requirements for all types of roads are 4.5 meters width but slightly wider at turns and a load bearing capacity to withstand the heaviest of the wind-farm components to be trafficked through.
CABLING TO SUBSTATION AND GRID Cabling to Substation
The power generated on each turbine is transmitted to the wind farm substation. This is done by means of a cable network connecting every turbine with the substation at a medium voltage (11-36kV). The cables can be overhead but underground trenched cabling is the most common. The overall length of cable depends on the distance from the turbines to the substation and the network layout. Normally the underground cables are buried roadside as this makes installation and future maintenance simpler. As a rule of thumb the length of cable per turbine is approximated to be 0.4 to 0.5 km.
Cabling to Grid
This cabling connects the wind farm substation to the closest distribution or transmission line. It can be underground but overhead cabling is the most common. Although the underground option is mostly preferred due to its lack of visual impact, the overhead option is more economic. The length of the line depends on the distance from the wind-farm substation to the point of connection on the main grid. The cable characteristics will depend on the total wind farm rated power and the transmission voltage on the downstream of the wind farm substation.
Point of Connection
This includes the commissioning of all the components necessary to complete the connection to the distribution network, including hardware, such as switches, reinforcements, supports including protection and measuring elements. The functions of the different systems at the point
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of connection may be classified contestable and non-contestable. The non-contestable affect the security of the distribution line and must be carried out by the distribution network operator in the area. The characteristics and cost will depend on the power capacity of the connection and the singularities of the distribution network in the area.
SCADA
Supervisory Control And Data Acquisition (SCADA) is an industrial control system, which enables users to monitor and control remote operations of wind turbines and other associated systems in real time. Users can access accurate real-time information including live weather and meteorological updates as well as fully configurable Key Performance Indicators (KPIs). Comparison of past production patterns against historical current and live information helps in fine-tuning to keep equipment at optimal efficiency. Some windfarm SCADA systems provide users with rich 2D and 3D visualizations and reports with integrated real-time and historical geographical terrain maps and graphics. Turbine information including wind speed, wind direction, power blade position, temperature and vibration can be accessed on real-time. The cost of a SCADA system will depend on the complexity of the desired package.
TRANSFORMERS
Most of the wind turbines generate electricity at a low voltage level from 600 to 1000 (V). In order to reduce the losses associated with electricity transmission, each wind turbine is equipped with a transformer to step up the voltage. Usually these transformers are situated at the base of the wind turbine as this makes it more accessible for operational monitoring and maintenance works. Having the transformer located in the nacelle, very close to the generator, has the advantage of reducing transmission losses as compared to the base location. If the transformers are supplied by the turbine manufacturer, they won’t be considered as part of BoP. The transformer may also be positioned inside or adjacent to the tower and therefore it is treated as one of the turbine components. The characteristics of each transformer are fixed by the rated power generated by the turbine, the voltage level and the transformation ratio.
MISCELLANEOUS COSTS
Overheads and others
This is a classification of other supplementary but necessary facilities or services, which form an essential part of BoP but cannot be particularly categorized in to any of the main items above. They are herewith categorized under the class of overheads and others as described below.
The Expansion of the Qartli Wind Farm – A Study of Opportunity
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Borrow Pit
This is a small, on-site quarry, typically used to obtain crushed rock for the construction of roads and crane pads. Not always feasible if rock is not present or suitable, and not always allowed by planning, it can result in savings on road stone costs if a borrow pit is used.
Site-wide drainage
This may be considered as a separate cost, or could be included in the cost of the various ground works such as tracks and crane pads.
Ground Investigation
This includes boreholes, trial pits, soil samples and laboratory tests etc. Usually this is done at each wind turbine location, the substation and along the access roads prior to award of the BoP contract. Sometimes additional ground investigation work may be required during the construction phase if the ground conditions are particularly complex.
Ground Risk
There is always a risk of cost or delay relating to the ground characteristics because it is not feasible to investigate the ground in every part of the site before construction commences. Usually the contractor is expected to take the risk relating to the ground by assigning a price to it. The cost price of this risk will depend on local ground conditions regarding soil type, location of bedrock or peat-bogs for example, plus the cost of any groundwork associated with making the ground suitable for building on.
Transportation
Transport of BoP construction materials is usually included in the price of materials. The price of transport will mainly depend on the distance and remoteness of the location, local fuel costs and the types of transport being utilized for delivery.
Topographic Survey
This is usually required before and after the all ground works. The post construction topographical survey usually forms part of the BoP works but the initial one is sometimes omitted.
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Design Costs
Wind-farms are typically let as “design and build”, otherwise known as EPC-engineer, procure and construct contracts. The outline design comprises largely of the site layout, which is usually completed at the pre-tender stage. All detailed design calculations and drawings are the responsibility of the BoP contractor.
Site Facilities
The BoP contractor is usually responsible for providing toilets, offices, and other requirements for the site as a whole for the duration of site construction.
Project Management
Some wind farms are built as two contracts: BoP and Turbine Supplier Agreement. Some are constructed under one wrapped contract, with either the turbine supplier or the BoP contractor acting as the lead party and taking full responsibility for the coordination and delivery of the works. The wrapped contract is lower risk and less work for the client, but consequently more expensive. The BoP cost will depend on the option taken.
Meteorological mast
Not all wind farms have a meteorological mast, and the responsibility for the design and construction of the foundation/crane pad and the mast may or may not be the BoP contractor’s responsibility.
The Expansion of the Qartli Wind Farm – A Study of Opportunity
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10 MW VERSION - A REVIEW
The Qartli Wind Farm, situated in the Gori region of Georgia, is suitable for a 10MW increase of capacity. The annual energy production assessments are illustrated in the “Summary Production Results” table, Figure A1, and show P75 (capacity factors: 40% - 52%) and P90 figures (capacity factors: 38%-49%). P75 indicates that there is a probability of 25% that the indicated level of annual energy production will not be reached, while P90 indicates a probability of 10% for the same issue. Banks will usually use P75 and P90 figures.
Hub heightUnit WTG Capacity
Wind Farm
Capacity
No. of WTG's
Cap Factor
Annual Hours
Annual Output
Cap Factor
Annual Hours
Annual Output
[m] (MW) [MW] [-] % hrs MWh % hrs MWh
2wtg's GE158-5.3 700 Hub=120.9m 120,9 5,3 10,6 2 51,50% 4.511 47.821 48,20% 4.222 44.757
3wtg's N149-4.5 Hub=105m 105,0 4,5 13,5 3 50,60% 4.433 59.840 47,40% 4.152 56.055
3wtg's SWT-DD-142-4.1 Hub=109m 109,0 4,1 12,3 3 50,80% 4.450 54.736 47,60% 4.170 51.288
3wtg's V150-4.2 Hub=105m 105,0 4,2 12,6 3 52,40% 4.590 57.837 49,10% 4.301 54.195
2wtg's E-147 EP5-5MW Hub=126m 126,0 5,0 10,0 2 47,10% 4.126 41.260 44,10% 3.863 38.632
SH* 7wtg's GE1.5xle Hub=100m 100,0 1,5 10,5 7 40,30% 3.530 37.068 37,80% 3.311 34.768
* Second hand - used GE 20-year old 1.5 MW WTGs
Figure A1
Annex 2 presents detailed calculations for each WTG option
Park variant
P75 P90
Summary Production Results10 MW Range
Figure A1 - Summary Production Results 10 MW Range P75_P90
The annual energy production for the various wind turbine configurations is the result of the detailed Wind Assessment Report, in Annex 1, with P40 to P90 figures analyzed. A summary of the figures can be found in Annex 2, with detailed annual energy calculations and optimal locations for the wind turbine generators.
Our assessment is that subject to an update of the existing Environmental Impact Assessment (Qartli 1) and a further road survey, a 10MW expansion should be ready to build within the next
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6-9 months. The construction should take about 12 months, subject to the availability of the wind turbine generators. We assume the permitting process has been partly completed and could be expedited given the immediate adjacency to the Qartli 1 wind farm.
A wind farm in the 10 MW range, using the latest generation wind turbines, will cost between USD 15m and USD 19m. The used turbine scenario will cost USD 10m. We have simulated 10 MW-range projects using new generation GE (5.3MW), Nordex (4.5 MW), Siemens Gamesa (4.1MW), Vestas (4.2MW) and Enercon (5MW) wind turbine generators, while for the 2nd hand option, GE 1.5 MW WTGs were considered. We believe the figures should cover the cost of building the wind farm, while recognizing that the selected manufacturer and general contractor will need to submit a detailed commercial offer specific to the selected site. Higher capacity wind turbines configurations, which will require 2 wind turbine generators, will be more expensive per WTG, but will require less outlay on foundations and electrical cabling. Please refer to Figure A2, which illustrates the various CAPEX estimates.
FX EUR/USD1,12
OtherWind Farm Configuration MW No. WTG Capex Capex Capex Capex
Installed USD 000s USD 000s/MW EUR 000s EUR 000s/MW
2 X GE158-5.3 700 Hub=120.9m 10,6 2 15.350 1.448 13.705 1.293
3 wtg's N149-4.5 Hub=105m 13,5 3 19.200 1.422 17.142 1.270
3 wtg's SWT-DD-142-4.1 Hub=109m 12,3 3 18.085 1.470 16.148 1.313
3 wtg's V150-4.2 Hub=105m 12,6 3 18.364 1.457 16.396 1.301
2 wtg's E-147 EP5-5MW Hub=126m 10 2 14.793 1.479 13.208 1.321
Ruisi Wind Farm SH 7wtg's GE1.5xle 10,5 7 10.844 1.033 9.682 922
Figure A2Capex Summary10 MW Range
Figure A2 - Capex Summary 10MW
In terms of O&M costs, we see a range between USD 600 000 and USD 800 000 annually, considering standard Full Service Agreements; two-turbine configurations will be less costly to maintain than three-turbine configurations. The 7-turbine configuration using second-hand 1.5 MW turbines will be the more expensive one. Please refer to the Figure A3 below for various OPEX estimates.
The Expansion of the Qartli Wind Farm – A Study of Opportunity
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Figure A3 - Opex Summary
In terms of financial results, we have illustrated an array of figures using P75 and P90 production values in two separated tables (Figures A4 and A5). The 30-months+ of the current Qartli 1 20 MW wind farm operational performance indicate that P75 figures are closer to the actual performance.
We see project IRRs varying from 9% to 11% in the P75 scenario, and 7% to 10% in the P90 scenario. [Levered] Equity IRRs vary from 18% to 21%, and 15-19% respectively. The minimum debt cover service ration (DSCR) varies from 1.67 to 1.94, and 1.5 to 1.8 respectively. The average debt cover service ratio ranges from 1.74 to 2, and 1.6 to 1.9 respectively. We have assumed conservative 50/50 debt-equity leverage, with 10-year no-recourse project finance at 6% (USD). As the indication is that a 10-year PPA at USD 60/MWh will be available, we have modeled the debt tenor to match the PPA duration, similar to the existing EBRD loan tenor in the Qartli 1 wind farm project. Loan Life Cover Ratios and Project Life Cover Ratios, as well as other indicators are also illustrated in the two tables.
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Figure A4 - Financial Results Summary 10MW P75
The Expansion of the Qartli Wind Farm – A Study of Opportunity
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Figure A5 - Financial Results Summary 10MW P90
Our conclusion is that a larger capacity and efficient wind turbine configuration, which will maximize the production during the first 10 years of operations, when the PPA is available, will render the better yield, and should be preferred.
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20 MW VERSION - A REVIEW
The Qartli Wind Farm, situated in the Gori region of Georgia, is suitable for a 20MW increase of capacity. The annual energy production assessments are illustrated in the “Summary Production Results” table, Figure B1, and show P75 (capacity factors: 40% - 51%) and P90 figures (capacity factors: 36%-48%). P75 indicates that there is a probability of 25% that the indicated level of annual energy production will not be reached, while P90 indicates a probability of 10% for the same issue. Banks will usually use P75 and P90 figures.
Hub height Unit WTG
Capacity
Wind Farm
Capacity
No. of WTG's
Cap Factor
Annual Hours
Annual Output
Cap Factor
Annual Hours
Annual Output
[m] (MW) [MW] [-] % hrs MWh % hrs MWh
4wtg's GE158-5.3 700 Hub=120.9m 120,9 5,3 21,2 4 51,00% 4.468 94.713 47,70% 4.179 88.585
5wtg's N149-4.5 Hub=105m 105,0 4,5 22,5 5 49,90% 4.371 98.353 46,70% 4.091 92.046
5wtg's SWT-DD-142-4.1 Hub=109m 109,0 4,1 20,5 5 50,10% 4.389 89.970 46,90% 4.108 84.223
5wtg's V150-4.2 Hub=105m 105,0 4,2 21,0 5 51,70% 4.529 95.107 48,40% 4.240 89.037
4wtg's E-147 EP5-5MW Hub=126m 126,0 5,0 20,0 4 46,60% 4.082 81.643 43,60% 3.819 76.387
9wtg's* GE1.5xle Hub=100m 100,0 1,5 13,5 9 39,10% 3.425 46.240 36,60% 3.206 43.283
* Second hand - used GE 20-year old 1.5 MW WTGs
Figure B1
Annex 2 presents detailed calculations for each WTG optionAnnex 1 - Wind Assessment Report - Net Production Values
Park variant
P75 P90
Summary Production Results20 MW Range
Figure B1 - Summary Production Results
The annual energy production for the various wind turbine configurations is the result of the detailed Wind Assessment Report, in Annex 1, with P40 to P90 figures analyzed. A summary of the figures can be found in Annex 3, with detailed annual energy calculations and optimal locations for the wind turbine generators.
Our assessment is that subject to an update of the existing Environmental Impact Assessment (Qartli 1) and a further road survey, a 20MW expansion should be ready to build within the next 6-9 months. The construction should take about 15 months, subject to the availability of the wind
The Expansion of the Qartli Wind Farm – A Study of Opportunity
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turbine generators. We assume the permitting process has been partly completed and could be expedited given the immediate adjacency to the Qartli 1 wind farm.
A wind farm in the 20 MW range, using the latest generation wind turbines, will cost between USD 26m and USD 29m. The used turbine scenario will cost USD 12m. We have simulated 20 MW-range projects using new generation GE (5.3MW), Nordex (4.5 MW), Siemens Gamesa (4.1MW), Vestas (4.2MW) and Enercon (5MW) wind turbine generators, while for the 2nd hand option, GE 1.5 MW WTGs were considered. We believe the figures should cover the cost of building the wind farm, while recognizing that the selected manufacturer and general contractor will need to submit a detailed commercial offer specific to the selected site. Higher capacity wind turbines configurations, which will require less wind turbine generators, will be more expensive per WTG, but will require less outlay on foundations and electrical cabling. Please refer to Figure B2, which illustrates the various CAPEX estimates.
Summary
FX EUR/USD1,12
Wind Farm Configuration MW No. WTG Capex Capex Capex Capex
Installed USD 000s USD 000s/MW EUR 000s EUR 000s/MW
4 wtg GE158-5.3 700 Hub=120.9m 21,2 4 27.007 1.274 24.113 1.137
5 wtg N149-4.5 Hub=105m 22,5 5 29.121 1.294 26.001 1.156
5 wtg's SWT-DD-142-4.1 Hub=109m 20,5 5 27.514 1.342 24.566 1.198
5 wtg's V150-4.2 Hub=105m 21 5 27.728 1.320 24.757 1.179
4 wtg's E-147 EP5-5MW Hub=126m 20 4 26.142 1.307 23.341 1.167
Ruisi Wind Farm SH 9wtg's GE1.5xle 13,5 9 12.494 925 11.155 826
Other
Figure B2Capex Summary20 MW Range
Figure B2 - Capex Summary
In terms of O&M costs, we see a range between USD 900 000 and USD 1m annually, considering standard Full Service Agreements; four-turbine configurations will be less costly to maintain than five-turbine configurations. The 9-turbine configuration using second-hand 1.5 MW turbines will be the more expensive one (per Mwh). Please refer to the Figure B3 below for various OPEX estimates.
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O&MSummary-20MWRangeGoriWindFarmExtension.xlsx Summary
Wind Farm Configuration MW / MW No. WTG OPEXWTG Installed USD 000s p.a. Capacity hrs/year mwh/year OPEX Capacity hrs/year mwh/year OPEXMW MW Factor USD/MWh Factor USD/MWh
4 X GE158-5.3 700 Hub=120.9m 5,3 21,2 4 995 51,00% 4.468 94.713 10,51 47,70% 4.179 88.585 11,23WTG Manufacturer: General Electric
5 X N149-4.5 Hub=105m 4,5 22,5 5 1.077 49,90% 4.371 98.353 10,95 46,70% 4.091 92.046 11,70WTG Manufacturer: Nordex
5 X SWT-DD-142-4.1 Hub=109m 4,1 20,5 5 1.017 50,10% 4.389 89.970 11,30 46,90% 4.108 84.223 12,08WTG Manufacturer: Siemens Gamesa
5 X V150-4.2 Hub=105m 4,2 21 5 1.032 51,70% 4.529 95.107 10,85 48,40% 4.240 89.037 11,59WTG Manufacturer: Vestas
4 X E-147 EP5-5MW Hub=126m 5 20 4 959 46,60% 4.082 81.643 11,75 43,60% 3.819 76.387 12,56WTG Manufacturer: Enercon
Ruisi Wind Farm SH 9wtg's GE1.5xle 1,5 13,5 9 980 39,10% 3.425 46.240 21,20 36,60% 3.206 43.283 22,65WTG Manufacturer: GE (20-year old turbines)
P75 P90
Figure B3Opex Summary20 MW Range
Figure B3 - Opex Summary
In terms of financial results, we have illustrated an array of figures using P75 and P90 production values in two separated tables (Figures B4 and B5). The 30-months+ of the current Qartli 1 20 MW wind farm operational performance indicate that P75 figures are closer to the actual performance.
We see project IRRs varying from 10% to 13% in the P75 scenario, and 8% to 12% in the P90 scenario. [Levered] Equity IRRs vary from 20% to 25%, and 17-23% respectively. The minimum debt cover service ration (DSCR) varies from 1.82 to 2.25, and 1.65 to 2.08 respectively. The average debt cover service ratio ranges from 1.9 to 2.3, and 1.72 to 2.13 respectively. We have assumed conservative 50/50 debt-equity leverage, with 10-year no-recourse project finance at 6% (USD). As the indication is that a 10-year PPA at USD 60/MWh will be available, we have modeled the debt tenor to match the PPA duration, similar to the existing EBRD loan tenor in the Qartli 1 wind farm project. Loan Life Cover Ratios and Project Life Cover Ratios, as well as other indicators are also illustrated in the two tables.
The Expansion of the Qartli Wind Farm – A Study of Opportunity
24
Figure B4 - Selected Financial Figures P75
25
Figure B5 - Selected Financial Figures P90
Our conclusion is that a larger capacity and efficient wind turbine configuration, which will maximize the production during the first 10 years of operations, when the PPA is available, will render the better yield, and should be preferred.
The Expansion of the Qartli Wind Farm – A Study of Opportunity
26
50 MW VERSION - A REVIEW
The Qartli Wind Farm, situated in the Gori region of Georgia, is suitable for a 50MW increase of capacity. The annual energy production assessments are illustrated in the “Summary Production Results” table, Figure C1, and show P75 (capacity factors: 45% - 50%) and P90 figures (capacity factors: 42%-46%). P75 indicates that there is a probability of 25% that the indicated level of annual energy production will not be reached, while P90 indicates a probability of 10% for the same issue. Banks will usually use P75 and P90 figures.
Hub height Unit WTG
Capacity
Wind Farm
Capacity
No. of WTG's
Cap Factor
Annual Hours
Annual Output
Cap Factor
Annual Hours
Annual Output
[m] (MW) [MW] [-] % hrs MWh % hrs MWh
10wtg's GE158-5.3 700 Hub=120.9m 120,9 5,3 53,0 10 50,00% 4.380 232.140 46,70% 4.091 216.819
11wtg's N149-4.5 Hub=105m 105,0 4,5 49,5 11 48,90% 4.284 212.040 45,70% 4.003 198.164
12wtg's SWT-DD-142-4.1 Hub=109m 109,0 4,1 49,2 12 49,00% 4.292 211.186 45,90% 4.021 197.825
12wtg's V150-4.2 Hub=105m 105,0 4,2 50,4 12 49,70% 4.354 219.427 46,40% 4.065 204.858
10wtg's E-147 EP5-5MW Hub=126m 126,0 5,0 50,0 10 45,60% 3.995 199.728 42,60% 3.732 186.588
Figure C1
The capacity factor has been lowered by 1% due to additional potential wake-lossesEstimates based on existing measurements - No detailed calculations have been made for this option
Park variant
P75 P90
Summary Production Results50 MW Range
Figure C1 - 50MW Summary Production Results
The annual energy production for the various wind turbine configurations is an estimate based the result of the detailed Wind Assessment Report, in Annex 1, with P40 to P90 figures analyzed, for 10MW and 20MW layout options - our estimates in the 50MW layout scenario decrease the capacity factors by 1% to compensate for potential wake losses. No detailed layout and turbine siting were analyzed in our report for this 50MW option, but we deem our estimates to be reasonably detailed to justify a go-no-go decision on the development of such a wind farm.
Our assessment is that subject to an update of the existing Environmental Impact Assessment (Qartli 1) and a further road survey, a 50MW expansion could be ready to build within the next 12 months. The construction should take about 24 months, subject to the availability of the wind turbine generators. We assume the permitting process has been partly completed and could be expedited given the immediate adjacency to the Qartli 1 wind farm.
27
A wind farm in the 50 MW range, using the latest generation wind turbines, will cost between USD 62m and USD 65m. We have simulated 50 MW-range projects using new generation GE (5.3MW), Nordex (4.5 MW), Siemens Gamesa (4.1MW), Vestas (4.2MW) and Enercon (5MW) wind turbine generators. We believe the figures should cover the cost of building the wind farm, while recognizing that the selected manufacturer and general contractor will need to submit a detailed commercial offer specific to the selected site. Higher capacity wind turbines configurations, which will require less wind turbine generators, will be more expensive per WTG, but will require less outlay on foundations and electrical cabling. Please refer to Figure C2, which illustrates the various CAPEX estimates.
Summary
FX EUR/USD1,12
Wind Farm Configuration MW No. WTG Capex Capex Capex Capex
Installed USD 000s USD 000s/MW EUR 000s EUR 000s/MW
10 wtg GE158-5.3 700 Hub=120.9m 53 10 65.461 1.235 58.447 1.103
11 wtg N149-4.5 Hub=105m 49,5 11 63.261 1.278 56.483 1.141
12 wtg's SWT-DD-142-4.1 Hub=109m 49,2 12 63.849 1.298 57.008 1.159
12 wtg's V150-4.2 Hub=105m 50,4 12 64.895 1.288 57.942 1.150
10 wtg's E-147 EP5-5MW Hub=126m 50 10 62.847 1.257 56.113 1.122
Other
Figure C2Capex Summary50 MW Range
Figure C2 - Capex Summary 50MW Range
In terms of O&M costs, we see a range between USD 2.1m and USD 2.2m annually, considering standard Full Service Agreements; the larger capacity turbine configurations might be less costly to maintain than the lower capacity turbine configurations on account of additional roads, foundations, cabling, etc.... Please refer to the Figure C3 below for various OPEX estimates.
The Expansion of the Qartli Wind Farm – A Study of Opportunity
28
O&MSummary-50MWRangeGoriWindFarmExtension.xlsx Summary
Wind Farm Configuration MW / MW No. WTG OPEXWTG Installed USD 000s p.a. Capacity hrs/year mwh/year OPEX Capacity hrs/year mwh/year OPEXMW MW Factor USD/MWh Factor USD/MWh
10 X GE158-5.3 700 Hub=120.9m 5,3 53 10 2.206 50,00% 4.380 232.140 9,50 46,70% 4.091 216.819 10,17WTG Manufacturer: General Electric
11 X N149-4.5 Hub=105m 4,5 49,5 11 2.144 48,90% 4.284 212.040 10,11 45,70% 4.003 198.164 10,82WTG Manufacturer: Nordex
12 X SWT-DD-142-4.1 Hub=109m 4,1 49,2 12 2.178 49,00% 4.292 211.186 10,31 45,90% 4.021 197.825 11,01WTG Manufacturer: Siemens Gamesa
12 X V150-4.2 Hub=105m 4,2 50,4 12 2.214 49,70% 4.354 219.427 10,09 46,40% 4.065 204.858 10,81WTG Manufacturer: Vestas
10 X E-147 EP5-5MW Hub=126m 5 50 10 2.116 45,60% 3.995 199.728 10,59 42,60% 3.732 186.588 11,34WTG Manufacturer: Enercon
P75 P90
Figure C3Opex Summary50 MW Range
Figure C3 - Opex Summary 50MW Range
In terms of financial results, we have illustrated an array of figures using P75 and P90 production values in two separated tables (Figures C4 and C5). The 30-months+ of the current Qartli 1 20 MW wind farm operational performance indicate that P75 figures are closer to the actual performance.
We see project IRRs varying from 11% to 13% in the P75 scenario, and 10% to 12% in the P90 scenario. [Levered] Equity IRRs vary from 22% to 26%, and 20-23% respectively. The minimum debt cover service ration (DSCR) varies from 2.04 to 2.32, and 1.89 to 2.14 respectively. The average debt cover service ratio ranges from 2.1 to 2.3, and 1.94 to 2.2 respectively. We have assumed conservative 50/50 debt-equity leverage, with 10-year no-recourse project finance at 6% (USD). As the indication is that a 10-year PPA at USD 60/MWh will be available, we have modeled the debt tenor to match the PPA duration, similar to the existing EBRD loan tenor in the Qartli 1 wind farm project. Loan Life Cover Ratios and Project Life Cover Ratios, as well as other indicators are also illustrated in the two tables.
29
Figure C4 - Selected Financial Results P75 50MW Range
The Expansion of the Qartli Wind Farm – A Study of Opportunity
30
Figure C5 - Selected Financial Results P90 50MW Range
Our conclusion is that any of the considered turbine options will deliver a profitable and productive wind farm; financially it is important to select the option, which will maximize the production during the first 10 years of operations, when the PPA is available, as a higher yield is usually preferred.
ANNEX 1
WIND ASSESSMENT REPORT SECTION
Annex 1
Wind Assessment Report
Contents
Executive Summary ....................................................................................................................................... 3
Introduction .................................................................................................................................................... 4
General aspects .............................................................................................................................................. 5
Site description ............................................................................................................................................... 6
Site visit ....................................................................................................................................................... 7
Wind monitoring equipment ...................................................................................................................... 9
Roughness ................................................................................................................................................. 11
Orography ................................................................................................................................................. 11
Methodology ................................................................................................................................................ 12
Measured wind parameters ...................................................................................................................... 12
Uncertainty degree of measured wind data ............................................................................................. 14
MCP analysis ............................................................................................................................................. 16
WAsP analysis ........................................................................................................................................... 18
Production analysis ....................................................................................................................................... 19
Turbine layout ............................................................................................................................................... 27
Concluding remarks ...................................................................................................................................... 29
Executive Summary
In order to provide the energy estimation for the Qartli Wind Farm in Shida Kartli region,
Georgia, the WINDATLAS-method with WAsP has been used. Based on the local measurements
from Qartli and MERRA long term data locations, achieved at 80m, 78m, 60m and 30m with Thies
First Class calibrated sensors, the Ridgeline Industrial team performed the following activities:
a) Measurement campaign verification;
b) Measured data analysis;
c) Power production on the 6 types of wind turbines;
d) P50-P90 probability calculation for provided production estimations.
Synoptic table with results:
Qartli Location
Roughness class 1.3 – 1.5
Equipment Ammonit and Thies First Class
Wind Speed at 90m
(P75/P90)
7.4 – 7.9 m/s 7.0 – 7.4 m/s
Wind farm configuration Manufacturer Gross Annual
Energy Production
(P75)
~10MW / ~20MW
[MWh/y]
Gross Annual
Energy Production
(P90)
~10MW / ~20MW
[MWh/y]
2 / 4wtg's GE158-5.3 @120.9m General Electric 49,952.0 /
98,896.0
46,774.0 /
92,604.0
3 / 5wtg's N149-4.5 @105m Nordex 62,611.0 /
102,745.0
58,628.0 /
96,209.0
3 / 5wtg's SWT-DD-142-4.1
@109m
Siemens 57,241.0 /
93,987.0
53,600.0 /
88,008.0
3 / 5wtg's V150-4.2 @105m Vestas 60,459.0 /
99,308.0
56,613.0 /
92,990.0
2 / 4wtg's E-147 EP5-
5MW@126m
Enercon 43,183.0 /
85,316.0
40,436.0 /
79,888.0
SH 7 / 9wtg's GE1.5xle@100m General Electric 43,693.0 /
54,464.0
40,913.0 /
50,999.0
Introduction
The company Georgia Energy Development Fund (Georgia) wants to develop a new wind farm
and retained the services of Ridgeline Industrial (Romania) - Ridgeline Industrial's analysis is partly
funded by the Romanian Agency for International Development and Cooperation - RoAID - to
conduct a wind assessment report for the Qartli site, in Shida Kartli. This wind assessment report
was conducted using wind measurements from the site and MERRA long term data.
The objective of this report is to estimate the wind speed and compare the results in order to
develop a wind farm. The general method used in these situations is the extrapolation of the
meteorological data (mainly wind speed and wind direction) measured at different height in order
to find their correspondent at hub height. The results will then be used to estimate the produced
energy by each wind turbine generator.
In order to assess the wind speed and wind energy information regarding orography and
roughness are also needed. All these calculations and simulations were made using WindPro 3.2
software, recognized and approved worldwide. The initial phase for evaluating the wind potential
for a certain location is the analysis of the measured wind data in one or more points, as close as
possible to the location chosen for developing a wind farm.
The current report meets the wind assessment reports quality standards (version 1), standards
required by the Wind Experts Advisory Board from the German Wind Energy Association.
General aspects
The objective of this study is to estimate the wind speed from the site and to establish the
production values for the General Electric GE158-5.3MW, Nordex N149-4.5MW, Siemens SWT-
DD-4.1MW, Vestas V150-4.2MW, Enercon E147-5MW and General Electric GE1.5xle-1.5MW
turbine models in order to develop a wind farm. The general method used in these situations is
the extrapolation of the meteorological data (mainly wind speed and wind direction) measured at
different heights and in different locations in order to find out their correspondent at hub height.
The obtained data will then be used to forecast the energy produced by each turbine.
The wind resources from the site were calculated using the WIND ATLAS ANALYSIS APLICATION
PROGRAM (WAsP) method, developed by the Meteorology and Wind energy division from the
Riso Laboratory, Denmark. The present wind assessment report will analyze in detail the wind
regime from the beneficiary’s site, highlighting the energetic qualities. Based on this report the
client will be able to make a decision whether he will continue his investment at this location.
In order to calculate the speed and energy of the wind, orography and roughness data are
needed. All these calculations and simulations were made using the WindPro 3.2 software,
approved and recognized worldwide.
This software is based on WAsP software, which uses a numerical model (BZ model), to
extrapolate the climatic data of the considered region for a specific power curve, taking into
account the placement of the wind turbine generators and the way they are influenced by the
“wake effect”.
The first step in evaluating the possibility of using the wind potential of an area, is to process the
measured wind data in one or several points, as close as possible to the area where a future wind
farm will be situated. In order to conduct this study, wind data were measured for a period of 33
months at the Qartli Mast, on site.
Site description
Evaluation of the location’s specific factors that influence the energy calculation for the described
site was made using topographic maps (scale 1:25.000) and aerial photos. The location of the
wind park can be observed on the attached map. The coordinates of the reference point used to
define the wind potential [UTM WGS84 Zone 38 coordinates system] are stated in the following
table:
Name Location Coordinates (UTM EGS 84 Zone
38)
QARTLI Wind Farm
II
Georgia 415,435.00
E
4,655,402.00 N
Table 1: Main point location, GPS coordinates
The area is located in center of Georgia, in the Shida Kartli region at 12km NV from Gori and
73km NV from Tbilisi.
Fig. 1: Qartli Site
Site visit
The site visit was carried out by the Ridgeline Industrial contracted staff in June 2019. The scope
of the visit was to verify the relevance of the information from the 1:25000 analysed maps,
determination of the roughness and verification of the measurment equipments from which data
will be used and if they were installed according to international standards, and also
determination of any possible obstacles near the park location that could cause disruptions or
influences to the wind turbine.
During the site visit, the tracking log was taken (Fig. 2) in order to visually represent the
information obtained on site in order to better evaluate the roughness and/or the influence of the
terrain over the site.
Ridgeline Industrial intended to also visit the meteorological masts, but this was not possible (the
met mast fell and was decommissioned), just the surrounding area was assessed.
Fig. 2: GPS tracklog from the site visit
The assessed site is located in the centre of Shida Kartli region, between the rivers Liakhvi to the
north and Kura to the south. The proposed development area is located on a plateau higher
than the surrounding landscape.
Landscape of the area
Panorama view of the surroundings
The region is mostly used for agriculture purposes. The agricultural areas are rarely interrupted by
trees outskirts, and there are small villages and some houses along the main roads. No major
obstacles were observed, except for the existing wind farm that has to be considered in the site
model. Also, in the area there are some power lines that cross site, they will be considered when
doing the layout.
The general roughness is registered in class 1.3, with values that may vary between 0.1m (grazing
areas, small agricultural crops) and 1.5 m (developed cereals).
Wind monitoring equipment
For a detailed analysis of local wind parameters, one measuring mast was used. The Qartli mast is
a 80m lattice tower with anemometers located at 30m, 60m, 78m and 80m and wind vanes
installed at 30m and 78m, the tower base is at 846m a.s.l.. The mast was installed by the client
team, and the sensors were provided by Thies Clima. The wind data validation was done by
Ridgeline Industrial contracted Team.
Calibration certificates were available for review, as well as the installation report.
Fig. 3: Qartli 80m Mast
Other data sources
Available for this site were long term data from NCAR, ERA5 and MERRA. The Ridgeline
Industrial team chose the MERRA 25+years data because it was the closest, it has good
availability and it had the best correlation.
Also available for this project was production data from a near by wind farm.
Data source Distance to Gori II Wind Farm
MERRA 5km QWF (existing wind
farm) 5km
Fig. 4: Other data sources
Roughness
The roughness factor defines terrain elements that influence the laminar air flow, and that is
situated at a relative distance from the reference point (meteo masts). In this case, using data
measured at the site visit, and analyzing the terrain in the area, a roughness map (Fig 5) for an
area of approximately 110 km2 has been created. The map was then used in WindPro 3.2 to
identify the way in which the wind profile is modified by its passing over those extents.
Fig. 5: Roughness Map
Orography
The orography of any region is a result of the action of internal (izostatic movements) and external
(climate) factors on the terrain. The Gori area is characterized by the existence of a plateau with a
medium altitude of 800m, bordered by an NW-SE oriented slope, with medium to high sloping
and a mountain range to the S.
Fig. 6: Height Contours Lines Map
Methodology
Measured wind parameters Gori Mast
Wind speed (mean and standard deviation) and wind direction were recorded during ~ 33
month’s period (August 2013 – February 2017) for the Gori Mast.
Recovery rate was 75.6% at the Gori Mast for all data and also some mast shading effects were
detected due to differences noticed between anemometers recording data at the same heights.
No history was provided about the maintenance of the met mast, but we can conclude that major
problems were caused by logger malfunctions.
The data logger from Gori Mast samples wind speed and direction once every second. These are
then combined into 10-minute averages, and along with the standard deviation for those 10-
minute periods, are put into a binary file.
Preliminary to data loading in WindPro 3.2 software, all wind data were subjected to a series of
tests and filters to weed out data that are faulty or corrupted.
Fig. 7: Wind profile and wind rose for the Gori Mast
The wind speeds as recorded at all the levels were reviewed.
Regarding monthly distribution of wind speed, the location is part from general Georgian climate,
with relative stabile mean wind speed distributions through the year.
Fig. 9: Monthly variation of speed
Uncertainty degree of measured wind data
No uncertainties reports were available for the data from the beneficiary, and for the data from
the MERRA location, and so the data gaps had to be analysed through personal investigation and
research methods. The total availability of the measured and filtered data from the Qartli Wind
Farm database, reach a value of 97%, which is a very good value.
Beside the data availability, the quality of the measured data depends on the anemometers
characteristics, the influences caused by the equipment installation and the terrain configuration.
In the following table uncertainties estimated for each analysis phase of the installed
anemometers are indicated as uncertainties in relation to the energy production calculation,
which is estimated as being 1.4 bigger than the wind speed uncertainties.
Uncertainty of the parts of the analysis and calculations
Wind statistic 5.96% Wind measurement 4.23%
Anemometer calibration 1.40%
Anemometer characteristics 1.50%
Installation equipment's influence 2.10%
Data recording 2.29% Availability 1.00% Recording frequency 0.50% Data recovery 2.00%
Terrain effects (turbulence, wind shear) 2.00%
Roughness and orography 1.65% Obstacles 0.50% Representation of the period 1.20%
Long term correlation (Index consistency, 100% level, transfer to the future)
2.00%
Site calibration (terrain modelling) 3.50% Wake model/ wind farm calculation 1.50% Integrity of the model (wind in hub height, transfer to the sites) 3.00% WTG power curve 7.00% Total uncertainty 9.79%
Total uncertainty is considered as being the square root of the sum of all individual factors.
Uncertainties can be evaluated in detail, as follows:
• The anemometer calibration uncertainty results directly from the calibration reports and
can be calculated with standard deviations of each recorded value. A simplified mean
value for the measured uncertainty was chosen.
• The anemometer characteristics uncertainty describes the link of a certain type of
anemometer with an ideal anemometer, regarding it’s behaviour due to wind profile
(cosine behaviour) and inertia (start up, overcoming the normal speed). First class Thies
type anemometer belongs to high class quality with high performances in turbulent wind
conditions. A small uncertainty is justified.
• The terrain influence is small, being indicated by the turbulence distribution between the
three heights. As the relief in the area can be characterised as easy tilted, this fact
shouldn’t lead to important vertical components of the wind vector and thus shouldn’t
influence the wind measurements.
MCP analysis
MCP is the abbreviation for Measure-Correlate-Predict techniques, which is widely in use for
establishing a long-term wind statistic using limited wind data from the current site and long-term
data from a more-or-less nearby site.
Because often the on-site measured wind parameters do not cover a long period in time, there is
a certain financial risk to estimate the turbine energy production for an entire park lifetime (mainly
25 years).
To cover a part from this risk, it is necessary to have the above mentioned long term corrected
wind data, obtained mainly after several statistical operations between the measured wind data
and another reference data that can be considered reliable for the same area. In this wind
resource assessment, the lack of reliable local meteorological data from meteo stations was
replaced with MERRA type data.
The MERRA dataset consists of u and v wind components at different pressure surfaces, surface
temperature data and surface heat flux. As we had mentioned early, only ten years long term
data from 80m height was used (1989 to 2016). In the following chart concurrent data only was
analysed.
Fig. 10: Measured wind data at Gori 80m mast and at MERRA point
There are several methods to obtain a long term corrected wind data for site location. WindPro
software can perform four MCP type analyses, their final result being dependent on several
factors. It remains at user’s attitude which method should be performed.
For the Gori wind statistic, the Ridgeline Industrial team correlated the 80m anemometer from
the mast with 50m level from MERRA, a satisfying correlation coefficient was obtained.
Establishing a decent match between the local measurement and long-term reference data
Ridgeline Industrial team proceeded to creating a relevant wind statistic using the Matrix method.
Fig. 11: Predicted Energy and Frequency for MERRA
This one is based on a wind speed (speed-up) and wind direction (wind veer) changes modelling
through a joint distribution that fits on wind speed bins and wind direction bins matrix.
The final results of this MCP calculation will be represented by a long-term corrected
meteorological data file, which will be used in an on-site WAsP analysis. According to results
from the long term analysis the difference between the measured data and the forecasted data
was obtained and lower wind speed were forecasted than the measured speeds.
WAsP analysis
For the analyzed area, the Ridgeline Industrial team chose, taking into consideration the
topography, the roughness and the size of the area, to consider it as one zone. The WASP object
and wind resources were calculated for this region. Production estimates for the 6 types of
turbines were also the scope of this report.
Fig. 12: WAsP regions
The WASP object used the wind statistics created from the Gori masts correlated with the MERRA
data using the Matrix method, calculated for the WAsP region.
Production analysis
The performance of a wind farm is additionally conditioned by the technical availability of the
installations and electrical losses. Since these values are depending on the contractual agreement
with the manufacturers and on the design of the grid connection. The user of this report has to
define the respective losses that also have to be considered. The calculated production figures
are equivalent to the production results of the wind turbine counters considering a 100 %
availability level, in order to obtain a real estimation of future production figures. It is necessary to
reduce the wind farm production by different kinds of losses. The following aspects should be
considered:
ü Technical availability of wind turbines
ü Technical availability of substation and grid system
ü Wind farm internal grid losses
ü Blade degradation and icing
ü Power management
ü Power curve performance
ü Noise and/or shadow induced operation restrictions
Production estimations for P50 values for 20MW layout:
Park variant Hub
height Capacity
No. of WTG's
Result Wake loss
Capacity factor
Mean WTG result
[m] [MW] [-] [MWh/y] [%] [%] [MWh/y] Park Gori II 4wtg's GE158-5.3 700 Hub=120.9m 120.9
21.2 4 105,887.10 1.4 57 26,471.80
Park Gori II 5wtg's N149-4.5 Hub=105m 105
22.5 5 110,008.30 2 55.8 22,001.70
Park Gori II 5wtg's SWT-DD-142-4.1 Hub=109m 109
20.5 5 100,631.00 1.9 56 20,126.20
Park Gori II 5wtg's V150-4.2 Hub=105m 105
21 5 106,328.10 1.9 57.8 21,265.60
Park Gori II 4wtg's E-147 EP5-5MW Hub=126m 126
20 4 91,346.30 1.3 52.1 22,836.60
Park Gori II - SH 9wtg's GE1.5xle Hub=100m 100
13.5 9 58,313.90 3.7 49.3 6,479.30
Production estimations for P50 values for 10MW layout:
Park variant Hub
height Capacity
No. of WTG's
Result Wake loss
Capacity factor
Mean WTG result
[m] [MW] [-] [MWh/y] [%] [%] [MWh/y] Park Gori II 2wtg's GE158-5.3 700 Hub=120.9m 120.9 10.6 2 53,483.20 2.1 57.6 26,741.60 Park Gori II 3wtg's N149-4.5 Hub=105m 105 13.5 3 67,036.70 1.7 56.6 22,345.60 Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 109 12.3 3 61,287.70 1.6 56.8 20,429.20 Park Gori II 3wtg's V150-4.2 Hub=105m 105 12.6 3 64,733.20 1.6 58.6 21,577.70 Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 126 10 2 46,235.60 1.8 52.7 23,117.80 Park Gori II - SH 7wtg's GE1.5xle Hub=100m 100 10.5 7 46,781.50 1.3 50.8 6,683.10
In the annex, the park calculation, are presented the calculated annual energy, efficiency and
mean wind speed at hub height for the 6 scenarios analyzed in this report.
For 20MW layout:
The P40-P90 calculations for GE158-5.3 700:
Calculation of P40 - P90
GROSS Values Input values
Overall Uncertainty 9.79
Installed capacity 21.2
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 108513 105887 103261 100452 98896 97164 92604 MWh/year
Equivalent hours 5119 4995 4871 4738 4665 4583 4368 hours Capacity Factor 58.41 57.00 55.59 54.07 53.24 52.30 49.85 %
NET Values
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 103912 101397 98883 96193 94703 93044 88678 MWh/year
Equivalent hours 4901.5 4782.9 4664.3 4537.4 4467.1 4388.9 4182.9 hours Capacity Factor 55.9 54.6 53.2 51.8 51.0 50.1 47.7 %
Value Percentage
Calculated losses 0.958 4.24%
The P40-P90 calculations for N149-4.5:
Calculation of P40 - P90
GROSS Values Input values
Overall Uncertainty 9.79
Installed capacity 22.5
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 112736 110008 107280 104362 102745 100946 96209 MWh/year
Equivalent hours 5011 4889 4768 4638 4566 4486 4276 hours Capacity Factor 57.18 55.80 54.42 52.94 52.12 51.20 48.80 %
NET Values
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 107956 105344 102732 99937 98389 96666 92129 MWh/year
Equivalent hours 4798.1 4682.0 4565.8 4441.6 4372.8 4296.3 4094.6 hours Capacity Factor 54.8 53.4 52.1 50.7 49.9 49.0 46.7 %
Value Percentage
Calculated losses 0.958 4.24%
The P40-P90 calculations for SWT-DD-142-4.1:
Calculation of P40 - P90
GROSS Values Input values
Overall Uncertainty 9.79
Installed capacity 20.5
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 103126 100631 98136 95466 93987 92341 88008 MWh/year
Equivalent hours 5031 4909 4787 4657 4585 4504 4293 hours Capacity Factor 57.39 56.00 54.61 53.13 52.30 51.39 48.98 %
NET Values
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 98754 96364 93975 91418 90002 88426 84276 MWh/year
Equivalent hours 4817.3 4700.7 4584.1 4459.4 4390.4 4313.5 4111.0 hours Capacity Factor 55.0 53.6 52.3 50.9 50.1 49.2 46.9 %
Value Percentage
Calculated losses 0.958 4.24%
The P40-P90 calculations for V150-4.2:
Calculation of P40 - P90
GROSS Values Input values
Overall Uncertainty 9.79
Installed capacity 21.0
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 108965 106328 103691 100870 99308 97569 92990 MWh/year
Equivalent hours 5189 5063 4938 4803 4729 4646 4428 hours Capacity Factor 59.23 57.80 56.37 54.83 53.98 53.04 50.55 %
NET Values
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 104345 101820 99295 96593 95098 93432 89047 MWh/year
Equivalent hours 4968.8 4848.6 4728.3 4599.7 4528.5 4449.1 4240.4 hours Capacity Factor 56.7 55.3 54.0 52.5 51.7 50.8 48.4 %
Value Percentage
Calculated losses 0.958 4.24%
The P40-P90 calculations for E-147 EP5-5MW:
Calculation of P40 - P90
GROSS Values Input values
Overall Uncertainty 9.79
Installed capacity 20.0
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 93612 91346 89081 86658 85316 83821 79888 MWh/year
Equivalent hours 4681 4567 4454 4333 4266 4191 3994 hours Capacity Factor 53.39 52.10 50.81 49.43 48.66 47.81 45.56 %
NET Values
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 89642 87473 85304 82983 81698 80267 76500 MWh/year
Equivalent hours 4482.1 4373.7 4265.2 4149.2 4084.9 4013.4 3825.0 hours Capacity Factor 51.1 49.9 48.7 47.3 46.6 45.8 43.6 %
Value Percentage
Calculated losses 0.958 4.24%
The P40-P90 calculations for SH 9wtg's GE1.5xle:
Calculation of P40 - P90
GROSS Values Input values
Overall Uncertainty 9.79
Installed capacity 13.5
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 59760 58314 56868 55321 54464 53510 50999 MWh/year
Equivalent hours 4427 4320 4212 4098 4034 3964 3778 hours Capacity Factor 50.52 49.30 48.08 46.77 46.05 45.24 43.12 %
NET Values
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 50796 49567 48338 47023 46294 45483 43349 MWh/year
Equivalent hours 3762.7 3671.6 3580.6 3483.2 3429.2 3369.1 3211.0 hours Capacity Factor 42.9 41.9 40.9 39.8 39.1 38.5 36.6 %
Value Percentage
Calculated losses 0.85 15%
For 10MW layout: The P40-P90 calculations for GE158-5.3 700:
Calculation of P40 - P90
GROSS Values Input values
Overall Uncertainty 9.79
Installed capacity 10.6
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 54809 53483 52157 50738 49952 49077 46774 MWh/year
Equivalent hours 5171 5046 4920 4787 4712 4630 4413 hours Capacity Factor 59.03 57.60 56.17 54.64 53.80 52.85 50.37 %
NET Values
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 52486 51216 49945 48587 47834 46996 44791 MWh/year
Equivalent hours 4951.5 4831.7 4711.8 4583.6 4512.7 4433.6 4225.6 hours Capacity Factor 56.5 55.2 53.8 52.3 51.5 50.6 48.2 %
Value Percentage
Calculated losses 0.958 4.24%
The P40-P90 calculations for N149-4.5:
Calculation of P40 - P90
GROSS Values Input values
Overall Uncertainty 9.79
Installed capacity 13.5
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 68699 67037 65374 63596 62611 61514 58628 MWh/year
Equivalent hours 5089 4966 4843 4711 4638 4557 4343 hours Capacity Factor 58.00 56.60 55.20 53.69 52.86 51.94 49.50 %
NET Values
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 65786 64194 62602 60899 59956 58906 56142 MWh/year
Equivalent hours 4873.1 4755.1 4637.2 4511.1 4441.2 4363.4 4158.6 hours Capacity Factor 55.5 54.2 52.9 51.4 50.6 49.7 47.4 %
Value Percentage
Calculated losses 0.958 4.24%
The P40-P90 calculations for SWT-DD-142-4.1:
Calculation of P40 - P90
GROSS Values Input values
Overall Uncertainty 9.79
Installed capacity 12.3
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 62808 61288 59768 58142 57241 56239 53600 MWh/year
Equivalent hours 5106 4983 4859 4727 4654 4572 4358 hours Capacity Factor 58.21 56.80 55.39 53.88 53.05 52.12 49.67 %
NET Values
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 60144 58689 57234 55677 54814 53854 51327 MWh/year
Equivalent hours 4889.8 4771.5 4653.1 4526.6 4456.5 4378.4 4172.9 hours Capacity Factor 55.7 54.4 53.0 51.6 50.8 49.9 47.6 %
Value Percentage
Calculated losses 0.958 4.24%
The P40-P90 calculations for V150-4.2:
Calculation of P40 - P90
GROSS Values Input values
Overall Uncertainty 9.79
Installed capacity 12.6
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 66338 64733 63128 61410 60459 59400 56613 MWh/year
Equivalent hours 5265 5138 5010 4874 4798 4714 4493 hours Capacity Factor 60.05 58.60 57.15 55.59 54.73 53.77 51.25 %
NET Values
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 63526 61989 60451 58807 57896 56882 54213 MWh/year
Equivalent hours 5041.7 4919.7 4797.7 4667.2 4594.9 4514.4 4302.6 hours Capacity Factor 57.5 56.1 54.7 53.2 52.4 51.5 49.1 %
Value Percentage
Calculated losses 0.958 4.24%
The P40-P90 calculations for E-147 EP5-5MW:
Calculation of P40 - P90
GROSS Values Input values
Overall Uncertainty 9.79
Installed capacity 10.0
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 47382 46236 45089 43862 43183 42427 40436 MWh/year
Equivalent hours 4738 4624 4509 4386 4318 4243 4044 hours Capacity Factor 54.01 52.70 51.39 49.99 49.22 48.36 46.09 %
NET Values
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 45373 44275 43177 42003 41352 40628 38721 MWh/year
Equivalent hours 4537.3 4427.5 4317.7 4200.3 4135.2 4062.8 3872.1 hours Capacity Factor 51.7 50.5 49.2 47.9 47.1 46.3 44.1 %
Value Percentage
Calculated losses 0.958 4.24%
The P40-P90 calculations for SH 7wtg's GE1.5xle:
Calculation of P40 - P90
GROSS Values Input values
Overall Uncertainty 9.79
Installed capacity 10.5
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 47942 46782 45621 44380 43693 42928 40913 MWh/year
Equivalent hours 4566 4455 4345 4227 4161 4088 3896 hours Capacity Factor 52.06 50.80 49.54 48.19 47.45 46.62 44.43 %
NET Values
Probability of exceedance
0.4 P50 0.6 0.7 0.75 0.8 0.9 Units
Percentage 102.5 100.0 97.5 94.9 93.4 91.8 87.5 % Production 40750 39764 38778 37723 37139 36488 34776 MWh/year
Equivalent hours 3881.0 3787.1 3693.2 3592.7 3537.0 3475.1 3312.0 hours Capacity Factor 44.3 43.2 42.1 41.0 40.3 39.6 37.8 %
Value Percentage
Calculated losses 0.85 15%
Turbine layout
For this area, the client, proposes the locations of the turbines. No micro siting was done by
Ridgeline Industrial team. Ridgeline Industrial considered a number of 6 existing wtg’s in the
neighboring area, the locations and type of the existing wtg’s were obtained from Ridgeline
Industrial data base. The detailed list of existing wtg’s can be found in the park calculation in
Annex 5 and in the next table.
Project Name
WTG No.
WTG Type Status
Manufacturer
Power (MW)
Rotor (m)
Hub Height (m)
Max. Height (m)
QWF 6 Vestas 3.45 117 91 864 built
Existing wtg’s and Gori II Wind Farm
Fig. 14: Gori II layout and existing turbine layout
Compared to single turbines, installing several wind turbines creates mutual interference of the
turbines. This results in a lower energy production of the farm compared to the sum of the single
productions of the turbines. The ratio between the energy production of the wind farm and the
sum of the single productions of the turbines is resulting into the so called “wind farm efficiency”.
This value is used as indicator for the quality of the wind farm design.
The mutual interference of the turbines, also called “wake effect”, is increasing with decreasing
distances between the turbines, as the wind flow is disturbed on the leeward side. The wind flow
remains disturbed until reaching a certain distance to the last turbine (generally greater than ten
times rotor diameter). This distance is required to regain the original energy level. Thus, it is
important that the turbines are positioned at a sufficient distance between the turbines, especially
in main wind direction.
The evaluation of the wind farm efficiency is accomplished by applying the respective module of
the software WindPRO 3.2. This software applies a relative simple mathematical model for the
description of the wake effect of a turbine. The calculation of the flow field and the wind speed’s
reduction in the wake serves as input for the respectively following turbine(s).
Fig. 15: Gori II wind map@ 90m
Concluding remarks
From a wind-climatologic point of view, the site GORI is suited for the technical use of wind
energy considering the average wind speed at P90 between 7.0 m/s – 7.4 m/s at 90 m a.g.l with
an equivalent roughness of 1.3-2.0 in the site location. Please notice that we see this appraisal as
an orientation for a comparison with similar developments. The main influence at the investigated
site results from the roughness in the further surroundings and also the planned wind parks under
development. The scope of the report was to establish the production values for the 6 turbine
models.
The energy yield forecast considers the wind turbines at the provided location must be
appreciated as a reference value due to uncertainties in relation to the effective technical
availability and the provided power curves. Therefore the energy yield forecast is not part of the
corroborated scope of this report. Any kind of liability in case that the economical-technical
target values are not achieved for damages / losses that might be caused by the direct or indirect
use of the results of this report is explicitly excluded.
The Ridgeline Industrial team accomplished this report according to the state of the art and to
the best of our knowledge. Based on the provided and considered measurement data, the report
has sufficient accuracy regarding the calculation and estimation of the park layout.
ANNEX 2
10 MW LONG VERSION CALCULATED ANNUAL ENERGY AND WTG SITING
Annex 2
10 MW Range Wind Farm
Calculated Annual Energy and Wind Turbine Generator Siting
Wind Turbine Generator Options:
General Electric 2wtg's GE158-5.3 700 Hub=120.9m
Enercon 2wtg's E-147 EP5-5MW Hub=126m
Nordex 3wtg's N149-4.5 Hub=105m
Siemens Gamesa 3wtg's SWT-DD-142-4.1 Hub=109m
Vestas 3wtg's V150-4.2 Hub=105m
General Electric 7wtg's GE1.5xle Hub=100m Second Hand
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PARK - Main ResultCalculation: Park Gori II 2wtg's GE158-5.3 700 Hub=120.9m 05.09.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 121.0 m = 1.119 kg/m³ -> 91.4 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:12,500
New WTG Site Data
Key results for height 121.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent roughnessdistribution
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 5,449 8.9 2.0
Calculated Annual Energy for Wind FarmSpecific results¤)
WTG combination Result GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speedPARK Free WTGs factor result hours @hub height
[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s]Wind farm 53,483.2 54,620.1 2.1 57.6 26,741.6 5,046 9.0¤) Based on wake reduced results, but no other losses included
*) Included in wake losses is influence from 6 WTG(s) in the neighborhood, which has status as "Reference WTGs", see separate report to identify these.
Calculated Annual Energy for each of 2 new WTGs with total 10.6 MW rated powerWTG type Power curve Annual Energy
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Result Wake loss Free rated diameter height mean
wind speed
[kW] [m] [m] [MWh/y] [%] [m/s]1 A Yes GE WIND ENERGY 5.3-158 Thrust 700-5,300 5,300 158.0 120.9 EMD 5.3-158 NO Med TI 27,132.8 2.8 9.222 A Yes GE WIND ENERGY 5.3-158 Thrust 700-5,300 5,300 158.0 120.9 EMD 5.3-158 NO Med TI 26,350.4 1.3 8.88
Annual Energy results do not include any losses apart from wake losses. Additional losses and uncertainty must be considered for an investmentdecision.
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description
[m]1 New 416,358 4,656,168 840.0 GE WIND ENERGY 5.3-158 Thrust 700 5300 158.0 !O! hub: 120.9 m (TOT: 199.9 m) (51)2 New 416,519 4,655,872 815.3 GE WIND ENERGY 5.3-158 Thrust 700 5300 158.0 !O! hub: 120.9 m (TOT: 199.9 m) (52)
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PARK - Reference WTGsCalculation: Park Gori II 2wtg's GE158-5.3 700 Hub=120.9m 05.09.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 121.0 m = 1.119 kg/m³ -> 91.4 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Existing WTG
Key results for height 121.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent roughnessdistribution
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 5,449 8.9 2.0
Calculated Annual Energy for reference WTGsSpecific results Specific results
Calculated GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speed Actual wind corrected Goodness Factorprod. without Free WTGs factor result hours @hub height energy
new WTGs[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s] [MWh/y] [%]98,795.5 99,245.5 0.6 54.4 16,465.9 4,773 9.0 0.0
Calculated Annual Energy for each of 6 reference WTGs with total 20.7 MW rated powerWTG type Power curve
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Calculated Goodness rated diameter height prod. Factor
without new WTGs
[kW] [m] [m] [MWh/y] [%]3 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,887.8 04 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 15,756.9 05 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,157.4 06 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,495.5 07 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,396.5 08 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 17,101.4 0
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]3 421,119 4,653,602 864.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (1)4 421,280 4,651,670 819.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (2)5 421,419 4,652,000 822.3 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (3)6 421,118 4,652,595 830.9 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (4)
To be continued on next page...
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PARK - Reference WTGsCalculation: Park Gori II 2wtg's GE158-5.3 700 Hub=120.9m 05.09.2019...continued from previous page
UTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]7 420,938 4,653,012 835.0 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (5)8 421,153 4,653,318 850.8 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (6)
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PARK - Production AnalysisCalculation: Park Gori II 2wtg's GE158-5.3 700 Hub=120.9m 05.09.2019WTG: All new WTGs, Air density varies with WTG position 1.107 kg/m³ - 1.113 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 36.0 8.3 197.3 5,430.1 15,541.4 2,282.1 62.3 30.7 1,028.8 15,414.1 6,756.5 538.5 47,326.2+Increase due to hills [MWh] 35.0 4.5 300.7 964.7 1,903.3 398.4 99.0 15.3 760.4 1,971.2 711.4 130.1 7,293.9-Decrease due to wake losses [MWh] 2.6 0.0 0.0 0.0 502.2 422.7 5.4 0.0 0.0 0.0 113.7 90.3 1,136.9Resulting energy [MWh] 68.4 12.9 498.0 6,394.8 16,942.5 2,257.8 155.9 45.9 1,789.2 17,385.4 7,354.2 578.3 53,483.2Specific energy [kWh/m²] 1,364Specific energy [kWh/kW] 5,046Increase due to hills [%] 97.4 54.4 152.4 17.8 12.2 17.5 158.8 49.7 73.9 12.8 10.5 24.2 15.41Decrease due to wake losses [%] 3.7 0.0 0.0 0.0 2.9 15.8 3.3 0.0 0.0 0.0 1.5 13.5 2.08Utilization [%] 23.1 27.9 25.0 27.2 27.3 23.1 25.1 21.0 21.3 22.5 22.5 18.2 24.3Operational [Hours/year] 61 13 161 1,033 2,660 532 39 20 377 2,351 1,167 208 8,620Full Load Equivalent [Hours/year] 6 1 47 603 1,598 213 15 4 169 1,640 694 55 5,046
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Project:
Gori II
PARK - Production AnalysisCalculation: Park Gori II 2wtg's GE158-5.3 700 Hub=120.9m 05.09.2019WTG: All existing WTGs, Air density varies with WTG position 1.107 kg/m³ - 1.113 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 41.5 12.3 275.4 9,755.1 23,431.9 2,991.1 27.4 37.0 1,394.9 27,396.4 10,983.1 743.0 77,089.1+Increase due to hills [MWh] 20.3 2.5 282.0 3,780.8 6,429.0 532.1 55.1 12.1 889.4 7,721.2 2,324.0 108.0 22,156.4-Decrease due to wake losses [MWh] 10.8 1.9 3.5 0.0 0.0 332.0 9.5 5.6 11.6 0.0 123.9 75.4 574.1Resulting energy [MWh] 51.0 12.9 553.8 13,535.9 29,860.9 3,191.1 73.1 43.5 2,272.7 35,117.6 13,183.2 775.5 98,671.3Specific energy [kWh/m²] 1,530Specific energy [kWh/kW] 4,767Increase due to hills [%] 48.9 20.0 102.4 38.8 27.4 17.8 201.0 32.7 63.8 28.2 21.2 14.5 28.74Decrease due to wake losses [%] 17.5 13.0 0.6 0.0 0.0 9.4 11.5 11.4 0.5 0.0 0.9 8.9 0.58Utilization [%] 24.2 27.5 27.6 29.9 32.2 30.4 27.7 22.7 24.4 24.3 25.3 23.1 27.4Operational [Hours/year] 50 13 130 1,183 2,598 470 15 16 306 2,498 1,146 183 8,608Full Load Equivalent [Hours/year] 2 1 27 654 1,443 154 4 2 110 1,697 637 37 4,767
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Project:
Gori II
PARK - Power Curve AnalysisCalculation: Park Gori II 2wtg's GE158-5.3 700 Hub=120.9m 05.09.2019WTG: 1 - GE WIND ENERGY 5.3-158 Thrust 700 5300 158.0 !O!, Hub height: 120.9 mName: 5.3-158 NO Med TI Source: Power_Curve-NO_5.3-158-xxHz_106dB_Thrust700_Eng-Rev03_EN_r02
Source/Date Created by Created Edited Stop wind speed Power control CT curve type Generator type Specific power[m/s] kW/m²
05/12/2018 EMD 29/06/2017 06/02/2019 25.0 Pitch User defined Variable 0.27Power_Curve-NO_5.3-158-xxHz_106dB_Thrust700_Eng-Rev03_EN_r02
HP curve comparison - Note: For standard air density
Vmean [m/s] 5 6 7 8 9 10HP value Pitch, variable speed (2013) [MWh] 9,739 14,569 19,123 23,102 26,409 29,022GE WIND ENERGY 5.3-158 Thrust 700 5300 158.0 !O! 5.3-158 NO Med TI [MWh] 9,828 14,614 19,129 23,067 26,311 28,823Check value [%] -1 0 0 0 0 1The table shows comparison between annual energy production calculated on basis of simplified "HP-curves" which assume that all WTGs performs quite similar - only specific power loading (kW/m^2)and single/dual speed or stall/pitch decides the calculated values. Productions are without wake losses.For further details, ask at the Danish Energy Agency for project report J.nr. 51171/00-0016 or see windPRO manual chapter 3.5.2.The method is refined in EMD report "20 Detailed Case Studies comparing Project Design Calculations and actual Energy Productions for Wind Energy Projects worldwide", jan 2003.Use the table to evaluate if the given power curve is reasonable - if the check value are lower than -5%, the power curve probably is too optimistic due to uncertainty in power curve measurement.
Power curveOriginal data, Air density: 1.225 kg/m³Wind speed Power Cp Wind speed Ct curve
[m/s] [kW] [m/s]3.0 90.0 0.28 3.0 0.913.5 188.0 0.37 3.5 0.894.0 314.0 0.41 4.0 0.884.5 471.0 0.43 4.5 0.855.0 664.0 0.44 5.0 0.835.5 902.0 0.45 5.5 0.826.0 1,182.0 0.46 6.0 0.826.5 1,513.0 0.46 6.5 0.817.0 1,896.0 0.46 7.0 0.817.5 2,337.0 0.46 7.5 0.808.0 2,819.0 0.46 8.0 0.788.5 3,322.0 0.45 8.5 0.749.0 3,809.0 0.44 9.0 0.689.5 4,264.0 0.41 9.5 0.6210.0 4,651.0 0.39 10.0 0.5610.5 4,939.0 0.36 10.5 0.5011.0 5,160.0 0.32 11.0 0.4411.5 5,266.0 0.29 11.5 0.3912.0 5,300.0 0.26 12.0 0.3412.5 5,300.0 0.23 12.5 0.3013.0 5,300.0 0.20 13.0 0.2613.5 5,300.0 0.18 13.5 0.2314.0 5,300.0 0.16 14.0 0.2114.5 5,300.0 0.14 14.5 0.1815.0 5,300.0 0.13 15.0 0.1715.5 5,300.0 0.12 15.5 0.1516.0 5,300.0 0.11 16.0 0.1416.5 5,300.0 0.10 16.5 0.1317.0 5,300.0 0.09 17.0 0.1117.5 5,300.0 0.08 17.5 0.1118.0 5,300.0 0.08 18.0 0.1018.5 5,300.0 0.07 18.5 0.0919.0 5,300.0 0.06 19.0 0.0819.5 5,300.0 0.06 19.5 0.0820.0 5,300.0 0.06 20.0 0.0720.5 5,300.0 0.05 20.5 0.0721.0 5,256.0 0.05 21.0 0.0621.5 5,197.0 0.04 21.5 0.0622.0 5,065.0 0.04 22.0 0.0522.5 4,884.0 0.04 22.5 0.0523.0 4,676.0 0.03 23.0 0.0423.5 4,520.0 0.03 23.5 0.0424.0 4,392.0 0.03 24.0 0.0424.5 4,301.0 0.02 24.5 0.0325.0 4,229.0 0.02 25.0 0.03
Power, Efficiency and energy vs. wind speedData used in calculation, Air density: 1.107 kg/m³ New windPRO method (adjustedIEC method, improved to match turbine control) <RECOMMENDED>Wind speed Power Cp Interval Energy Acc.Energy Relative
[m/s] [kW] [m/s] [MWh] [MWh] [%]1.0 0.0 0.00 0.50- 1.50 0.0 0.0 0.02.0 0.0 0.00 1.50- 2.50 0.0 0.0 0.03.0 69.8 0.24 2.50- 3.50 28.2 28.2 0.14.0 279.5 0.40 3.50- 4.50 127.0 155.2 0.65.0 597.8 0.44 4.50- 5.50 339.7 494.9 1.86.0 1,066.8 0.46 5.50- 6.50 722.4 1,217.4 4.57.0 1,712.2 0.46 6.50- 7.50 1,315.4 2,532.8 9.38.0 2,553.3 0.46 7.50- 8.50 2,096.8 4,629.6 17.19.0 3,489.4 0.44 8.50- 9.50 2,904.2 7,533.9 27.810.0 4,333.0 0.40 9.50-10.50 3,480.1 11,014.0 40.611.0 4,923.3 0.34 10.50-11.50 3,630.0 14,644.0 54.012.0 5,230.6 0.28 11.50-12.50 3,341.0 17,985.0 66.313.0 5,300.0 0.22 12.50-13.50 2,776.1 20,761.1 76.514.0 5,300.0 0.18 13.50-14.50 2,137.4 22,898.5 84.415.0 5,300.0 0.14 14.50-15.50 1,548.6 24,447.1 90.116.0 5,300.0 0.12 15.50-16.50 1,058.6 25,505.7 94.017.0 5,300.0 0.10 16.50-17.50 684.2 26,189.9 96.518.0 5,300.0 0.08 17.50-18.50 419.4 26,609.3 98.119.0 5,300.0 0.07 18.50-19.50 244.9 26,854.2 99.020.0 5,300.0 0.06 19.50-20.50 137.0 26,991.2 99.521.0 5,300.0 0.05 20.50-21.50 73.6 27,064.7 99.722.0 5,065.0 0.04 21.50-22.50 37.5 27,102.3 99.923.0 4,676.0 0.04 22.50-23.50 18.4 27,120.6 100.024.0 4,392.0 0.03 23.50-24.50 9.1 27,129.7 100.025.0 4,229.0 0.02 24.50-25.50 3.1 27,132.8 100.0
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Project:
Gori II
PARK - TerrainCalculation: Park Gori II 2wtg's GE158-5.3 700 Hub=120.9m 05.09.2019Site Data: A - WAsP Gori II
Obstacles:
0 Obstacles used
Roughness:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\ROUGHNESSLINE_ONLINEDATA_1.wpoMin X: 398,219, Max X: 428,401, Min Y: 4,642,241, Max Y: 4,671,415, Width: 30,182 m, Height: 29,175 m
Orography:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\CONTOURLINE_ONLINEDATA_0.wpoMin X: 402,913, Max X: 423,154, Min Y: 4,646,647, Max Y: 4,666,294, Width: 20,242 m, Height: 19,648 m
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Project:
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PARK - Wind Data AnalysisCalculation: Park Gori II 2wtg's GE158-5.3 700 Hub=120.9m 05.09.2019Wind data: A - WAsP Gori II; Hub height: 91.5Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.18 2.28 0.908 0.6 2.80 0.865 0.9 1 NNE 2.43 2.45 0.982 0.1 2.11 0.904 0.2 2 ENE 4.22 3.95 1.225 1.3 3.07 1.031 0.8 3 E 9.10 8.09 2.725 11.9 9.73 2.648 9.3 4 ESE 9.50 8.48 3.037 32.0 10.19 3.016 30.4 5 SSE 7.98 7.06 2.209 6.0 9.44 2.549 10.1 6 S 4.84 4.49 1.275 0.1 8.11 1.983 1.0 7 SSW 4.08 3.95 1.088 0.2 4.94 1.131 0.1 8 WSW 6.26 5.68 1.451 2.9 4.72 1.121 1.7 9 W 10.68 9.54 2.971 28.5 11.28 2.953 25.210 WNW 9.72 8.62 2.447 14.0 10.72 2.556 16.511 NNW 5.59 5.17 1.287 2.3 8.56 1.813 3.9All 9.46 8.40 2.525 100.0 10.17 2.524 100.0
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Project:
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PARK - Wind Data AnalysisCalculation: Park Gori II 2wtg's GE158-5.3 700 Hub=120.9m 05.09.2019Wind data: A - WAsP Gori II; Hub height: 121.0Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.36 2.47 0.908 0.6 3.03 0.864 0.9 1 NNE 2.62 2.64 0.982 0.1 2.28 0.902 0.2 2 ENE 4.56 4.27 1.229 1.3 3.32 1.029 0.8 3 E 9.76 8.68 2.725 11.9 10.54 2.640 9.3 4 ESE 10.17 9.09 3.041 32.1 11.03 3.007 30.4 5 SSE 8.54 7.56 2.205 6.1 10.24 2.540 10.1 6 S 5.34 4.93 1.299 0.1 8.79 1.978 1.0 7 SSW 4.38 4.24 1.088 0.2 5.33 1.129 0.1 8 WSW 6.72 6.09 1.455 2.9 5.11 1.116 1.7 9 W 11.31 10.09 2.979 28.4 12.04 2.952 25.210 WNW 10.31 9.15 2.455 14.0 11.44 2.555 16.511 NNW 5.97 5.52 1.287 2.3 9.17 1.811 3.9All 10.08 8.95 2.533 100.0 10.94 2.527 100.0
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Project:
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PARK - Park power curveCalculation: Park Gori II 2wtg's GE158-5.3 700 Hub=120.9m 05.09.2019
PowerWind Free Park N NNE ENE E ESE SSE S SSW WSW W WNW NNWspeed WTGs WTGs[m/s] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW]
0.5 0 0 0 0 0 0 0 0 0 0 0 0 0 01.5 0 0 0 0 0 0 0 0 0 0 0 0 0 02.5 0 0 0 0 0 0 0 0 0 0 0 0 0 03.5 330 299 289 330 330 330 289 167 289 330 330 330 303 1674.5 846 788 776 846 846 846 771 523 776 846 846 846 799 5235.5 1,627 1,527 1,508 1,627 1,627 1,627 1,495 1,086 1,508 1,627 1,627 1,627 1,547 1,0866.5 2,734 2,574 2,544 2,734 2,734 2,734 2,524 1,868 2,545 2,734 2,734 2,734 2,607 1,8687.5 4,226 3,986 3,941 4,226 4,226 4,226 3,911 2,925 3,942 4,226 4,226 4,226 4,036 2,9258.5 6,050 5,751 5,705 6,050 6,050 6,050 5,664 4,383 5,706 6,050 6,050 6,050 5,823 4,3839.5 7,870 7,592 7,574 7,870 7,870 7,870 7,522 6,247 7,574 7,870 7,870 7,870 7,680 6,249
10.5 9,348 9,155 9,154 9,348 9,348 9,348 9,118 8,163 9,153 9,348 9,348 9,348 9,226 8,16711.5 10,240 10,146 10,148 10,240 10,240 10,240 10,134 9,637 10,148 10,240 10,240 10,240 10,182 9,64012.5 10,569 10,548 10,552 10,569 10,569 10,569 10,553 10,396 10,551 10,569 10,569 10,569 10,560 10,40013.5 10,600 10,599 10,600 10,600 10,600 10,600 10,600 10,593 10,600 10,600 10,600 10,600 10,600 10,59414.5 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,60015.5 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,60016.5 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,60017.5 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,60018.5 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,60019.5 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,60020.5 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,600 10,60021.5 10,394 10,416 10,421 10,394 10,394 10,394 10,429 10,497 10,425 10,394 10,394 10,394 10,412 10,49622.5 9,768 9,785 9,787 9,768 9,768 9,768 9,789 9,869 9,787 9,768 9,768 9,768 9,780 9,86823.5 9,040 9,053 9,053 9,040 9,040 9,040 9,056 9,112 9,053 9,040 9,040 9,040 9,049 9,11224.5 8,602 8,608 8,608 8,602 8,602 8,602 8,610 8,635 8,608 8,602 8,602 8,602 8,606 8,63525.5 0 0 0 0 0 0 0 0 0 0 0 0 0 026.5 0 0 0 0 0 0 0 0 0 0 0 0 0 027.5 0 0 0 0 0 0 0 0 0 0 0 0 0 028.5 0 0 0 0 0 0 0 0 0 0 0 0 0 029.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Description:The park power curve is similar to a WTG power curve, meaning that when a given wind speed appears in front of the park with same speed in the entire wind farm area(before influence from the park), the output from the park can be found in the park power curve. Another way to say this: The park power curve includes wake losses, butdo NOT include terrain given variations in the wind speed over the park area.Measuring a park power curve is not as simple as measuring a WTG power curve due to the fact that the park power curve depends on the wind direction and that the samewind speed normally will not appear for the entire park area at the same time (only in very flat non-complex terrain). The idea with this version of the park power curve isnot to use it for validation based on measurements. This would require at least 2 measurement masts at two sides of the park, unless only a few direction sectors should betested, AND non complex terrain (normally only useable off shore). Another park power curve version for complex terrain is available in windPRO.
The park power curve can be used for:1. Forecast systems, based on more rough (approximated) wind data, the park power curve would be an efficient way to make the connection from wind speed (and
direction) to power.2. Construction of duration curves, telling how often a given power output will appear, the park power curve can be used together with the average wind distribution
for the Wind farm area in hub height. The average wind distribution can eventually be obtained based on the Weibull parameters for each WTG position. These arefound at print menu: >Result to file< in the >Park result< which can be saved to file or copied to clipboard and pasted in Excel.
3. Calculation of wind energy index based on the PARK production (see below).4. Estimation of the expected PARK production for an existing wind farm based on wind measurements at minimum 2 measurement masts at two sides of wind farm.
The masts must be used for obtaining the free wind speed. The free wind speed is used in the simulation of expected energy production with the PARK powercurve. This procedure will only work suitable in non complex terrains. For complex terrain another park power curve calculation is available in windPRO(PPV-model).
Note:From the >Result to file< the >Wind Speeds Inside Wind farm< is also available. These can (e.g. via Excel) be used for extracting the wake induced reductions in measuredwind speed.
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Project:
Gori II
PARK - WTG distancesCalculation: Park Gori II 2wtg's GE158-5.3 700 Hub=120.9m 05.09.2019
Scale 1:100,000New WTG Existing WTG
WTG distancesZ Nearest WTG Z Horizontal Distance in
distance rotor diameters[m] [m] [m]
1 840.0 2 815.3 337 2.12 815.3 1 840.0 337 2.13 864.2 8 850.8 286 2.44 819.2 5 822.3 358 3.15 822.3 4 819.2 358 3.16 830.9 7 835.0 455 3.97 835.0 8 850.8 374 3.28 850.8 3 864.2 286 2.4
Min 815.3 815.3 286 2.1Max 864.2 864.2 455 3.9
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Project:
Gori II
PARK - Wind statistics infoCalculation: Park Gori II 2wtg's GE158-5.3 700 Hub=120.9m 05.09.2019Main data for wind statisticFile E:\work\WindPRO Data\Projects\Gori II\GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wwsName Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3))Country GeorgiaSource USERMast coordinates UTM (north)-WGS84 Zone: 38 East: 420,904 North: 4,653,454Created 12/07/2019Edited 12/07/2019Sectors 12WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Displacement height None
CommentsFrom MCP
Additional info for wind statisticBased on measurement height 80.0 mBase elevation for measurement mast 845.6 m
Long term correction informationMethod Matrix MCPSource data MERRA_basic_E44.002_N42.000 (3)Distance to source data 4.8 kmLong term period from 01/01/1989Long term period to 01/03/2016Concurrent period from 07/08/2013Concurrent period to 01/03/2016Concurrent data records 10255Concurrent record interval 60 minutesConcurrent data recovery 67.1 %
Number of years with long term data 27.2 yearsNumber of months with concurrent data 14.0 Months
Correlation test based on Concurrent monthly windindicesPower curve used for index Simple power curve truncated at: 14.0 m/sData availability demand for inclusion of month 60 %Number of months 20r^2 - wind index 0.7892r - wind index 0.8884s - wind index 6.1510
NoteTo get the most correct calculation results, wind statistics shall be calculated with the SAME model and model parameters, as currently chosen incalculation. For WAsP versions before 10.0, the model is unchanged, but thereafter more model changes affecting the wind statistic is seen. LikewiseWAsP CFD should always use WAsP CFD calculated wind statistics.
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Project:
Gori II
PARK - RIX calculationCalculation: Park Gori II 2wtg's GE158-5.3 700 Hub=120.9m 05.09.2019Assumptions
Radius for calculation 3,500 mSteepness threshold 30.0 % / 17 °Directional weight Equally distributedRIX for wind statistic Calculated on windstatistic position. If not available Site data position is usedHeight contours used HCLAlfa 1.0No RIX correction for delta RIX in interval -5.0 % - 5.0 %
Reference sitesTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Site Data/Wind statistics Reference site RIX[%]
A 420,904 4,653,454 Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)) 1.8
WTG sitesUTM (north)-WGS84 Zone: 38
Links Easting Northing Z Reference site RIX WTG RIX Delta RIX (WTG site - Reference site) RIX correction[m] [%] [%] [%] [MWh/y]
1 A 416,358 4,656,168 840.0 1.8 0.0 -1.8 0.002 A 416,519 4,655,872 815.3 1.8 0.0 -1.8 0.003 A 421,119 4,653,602 864.2 1.8 2.1 0.3 0.004 A 421,280 4,651,670 819.2 1.8 1.4 -0.4 0.005 A 421,419 4,652,000 822.3 1.8 1.3 -0.5 0.006 A 421,118 4,652,595 830.9 1.8 1.1 -0.7 0.007 A 420,938 4,653,012 835.0 1.8 1.3 -0.5 0.008 A 421,153 4,653,318 850.8 1.8 1.6 -0.2 0.00
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Project:
Gori II
PARK - RIX calculationCalculation: Park Gori II 2wtg's GE158-5.3 700 Hub=120.9m 05.09.2019
Latest research /Risø/ show that the threshold in RIX calculation typically work best with 40% (new default), and that delta Rix within+/- 5% should not give corrections. Cross predictions based on more mast can fine tune the threshold, see Cross predictor tool inwindPRO Meteo Analyzer. In windPRO LOSS&&UNCERTAINTY module, RIX correction can be calculated automatically as a bias basedon most recent recommended correction formulas, which can be found in EWEC2006 && 08 papers on Rix from Risø, see extractbelow:
The main conclusion based on use of the RIX method is that if both reference site (measurement mast) and predicted site (WTG) areequally rugged (Delta RIX < 5%), very small calculation errors are expected.If reference site (measurement mast) is very rugged, e.g. RIX = 0.2 and predicted site (WTG) are less rugged (e.g. RIX = 0), Delta RIXwill be -0.2 and according to the graph, 30% too low wind speed prediction at WTG site could be expected. This could lead to around60%*) too low calculated energy production.If the reference site is less rugged, e.g. RIX = 0, and the predicted site (WTG) are very rugged (e.g. RIX = 0.2), Delta RIX will be +0.2,and according to the graph, 30% too high wind speed prediction at WTG site could be expected. This could lead to around 60%*) toohigh calculated energy production.*) Doubling of energy prediction error based on mean wind speed error is a rough conversion, which holds for wind speeds around 8m/s. At 6-7 m/s tripling is more right, while only 1.5 factors should be used for 9 m/s, see graph below based on a typical WTG.
Source: EWEC06 paper:IMPROVING WAsP PREDICTIONS IN (TOO) COMPLEX TERRAINNiels G. Mortensen, Anthony J. Bowen and Ioannis AntoniouWind Energy Department, Risø National Laboratory
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Project:
Gori II
PARK - MapCalculation: Park Gori II 2wtg's GE158-5.3 700 Hub=120.9m 05.09.2019
0 500 1000 1500 2000 mMap: BigGameHunter , Print scale 1:40,000, Map center UTM (north)-WGS84 Zone: 38 East: 418,888 North: 4,653,919
New WTG Existing WTG
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Project:
Gori II
PARK - Main ResultCalculation: Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 05.09.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 126.0 m = 1.119 kg/m³ -> 91.3 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:12,500
New WTG Site Data
Key results for height 126.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent roughnessdistribution
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 5,611 9.0 2.0
Calculated Annual Energy for Wind FarmSpecific results¤)
WTG combination Result GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speedPARK Free WTGs factor result hours @hub height
[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s]Wind farm 46,235.6 47,089.2 1.8 52.7 23,117.8 4,624 9.1¤) Based on wake reduced results, but no other losses included
*) Included in wake losses is influence from 6 WTG(s) in the neighborhood, which has status as "Reference WTGs", see separate report to identify these.
Calculated Annual Energy for each of 2 new WTGs with total 10.0 MW rated powerWTG type Power curve Annual Energy
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Result Wake Free rated diameter height loss mean
wind speed
[kW] [m] [m] [MWh/y] [%] [m/s]1 A Yes ENERCON E-147 EP5 E2-5,000 5,000 147.0 126.0 EMD Mode 0 Standard_5000 kW - preliminary 23,513.1 2.4 9.302 A Yes ENERCON E-147 EP5 E2-5,000 5,000 147.0 126.0 EMD Mode 0 Standard_5000 kW - preliminary 22,722.6 1.2 8.97
Annual Energy results do not include any losses apart from wake losses. Additional losses and uncertainty must be considered for an investmentdecision.
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description
[m]1 New 416,358 4,656,168 840.0 ENERCON E-147 EP5 E2 5000 147.0 !O! hub: 126.0 m (TOT: 199.5 m) (46)2 New 416,519 4,655,872 815.3 ENERCON E-147 EP5 E2 5000 147.0 !O! hub: 126.0 m (TOT: 199.5 m) (47)
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Project:
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PARK - Reference WTGsCalculation: Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 05.09.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 126.0 m = 1.119 kg/m³ -> 91.3 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Existing WTG
Key results for height 126.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent roughnessdistribution
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 5,611 9.0 2.0
Calculated Annual Energy for reference WTGsSpecific results Specific results
Calculated GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speed Actual wind corrected Goodness Factorprod. without Free WTGs factor result hours @hub height energy
new WTGs[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s] [MWh/y] [%]98,795.5 99,245.5 0.6 54.4 16,465.9 4,773 9.0 0.0
Calculated Annual Energy for each of 6 reference WTGs with total 20.7 MW rated powerWTG type Power curve
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Calculated Goodness rated diameter height prod. Factor
without new WTGs
[kW] [m] [m] [MWh/y] [%]3 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,887.8 04 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 15,756.9 05 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,157.4 06 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,495.5 07 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,396.5 08 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 17,101.4 0
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]3 421,119 4,653,602 864.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (1)4 421,280 4,651,670 819.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (2)5 421,419 4,652,000 822.3 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (3)6 421,118 4,652,595 830.9 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (4)
To be continued on next page...
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PARK - Reference WTGsCalculation: Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 05.09.2019...continued from previous page
UTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]7 420,938 4,653,012 835.0 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (5)8 421,153 4,653,318 850.8 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (6)
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PARK - Production AnalysisCalculation: Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 05.09.2019WTG: All new WTGs, Air density varies with WTG position 1.107 kg/m³ - 1.113 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 30.9 7.1 166.8 4,614.9 13,254.4 1,946.6 51.9 26.3 868.7 13,241.0 5,818.1 463.7 40,490.2+Increase due to hills [MWh] 29.5 3.8 254.2 858.1 1,716.9 350.5 83.7 13.1 658.3 1,861.0 656.1 113.7 6,599.0-Decrease due to wake losses [MWh] 1.7 0.0 0.0 0.0 371.3 333.1 3.5 0.0 0.0 0.0 72.3 71.7 853.6Resulting energy [MWh] 58.6 10.9 421.0 5,473.0 14,600.0 1,964.1 132.1 39.4 1,527.0 15,102.0 6,401.9 505.6 46,235.6Specific energy [kWh/m²] 1,362Specific energy [kWh/kW] 4,624Increase due to hills [%] 95.6 53.9 152.4 18.6 13.0 18.0 161.1 50.0 75.8 14.1 11.3 24.5 16.30Decrease due to wake losses [%] 2.9 0.0 0.0 0.0 2.5 14.5 2.6 0.0 0.0 0.0 1.1 12.4 1.81Utilization [%] 22.4 26.6 24.1 26.1 26.2 22.5 24.3 20.3 20.8 22.1 22.0 17.8 23.6Operational [Hours/year] 61 13 159 1,031 2,665 532 38 20 373 2,353 1,169 208 8,622Full Load Equivalent [Hours/year] 6 1 42 547 1,460 196 13 4 153 1,510 640 51 4,624
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PARK - Production AnalysisCalculation: Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 05.09.2019WTG: All existing WTGs, Air density varies with WTG position 1.107 kg/m³ - 1.113 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 41.5 12.3 275.4 9,755.1 23,431.9 2,991.1 27.4 37.0 1,394.9 27,396.4 10,983.1 743.0 77,089.1+Increase due to hills [MWh] 20.3 2.5 282.0 3,780.8 6,429.0 532.1 55.1 12.1 889.4 7,721.2 2,324.0 108.0 22,156.4-Decrease due to wake losses [MWh] 10.8 1.9 3.5 0.0 0.0 332.0 9.5 5.6 11.6 0.0 103.4 75.3 553.6Resulting energy [MWh] 51.0 12.9 553.8 13,535.9 29,860.9 3,191.1 73.1 43.5 2,272.7 35,117.6 13,203.7 775.6 98,691.9Specific energy [kWh/m²] 1,530Specific energy [kWh/kW] 4,768Increase due to hills [%] 48.9 20.0 102.4 38.8 27.4 17.8 201.0 32.7 63.8 28.2 21.2 14.5 28.74Decrease due to wake losses [%] 17.5 13.0 0.6 0.0 0.0 9.4 11.5 11.4 0.5 0.0 0.8 8.9 0.56Utilization [%] 24.2 27.5 27.6 29.9 32.2 30.4 27.7 22.7 24.4 24.3 25.3 23.1 27.4Operational [Hours/year] 50 13 130 1,183 2,598 470 15 16 306 2,498 1,146 183 8,608Full Load Equivalent [Hours/year] 2 1 27 654 1,443 154 4 2 110 1,697 638 37 4,768
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PARK - Power Curve AnalysisCalculation: Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 05.09.2019WTG: 1 - ENERCON E-147 EP5 E2 5000 147.0 !O!, Hub height: 126.0 mName: Mode 0 Standard_5000 kW - preliminarySource: Enercon GmbH
Source/Date Created by Created Edited Stop wind speed Power control CT curve type Generator type Specific power[m/s] kW/m²
10/05/2019 EMD 15/03/2019 15/07/2019 25.0 Pitch User defined Variable 0.29D0810273-1_#_en_#_Data sheet operating modes E-147 EP5 E2_5000 kW mit TES.pdfThis data is preliminary. Subject to technical changes.Enercon reserves the right to change the above specifications without prior notice.
HP curve comparison - Note: For standard air density
Vmean [m/s] 5 6 7 8 9 10HP value Pitch, variable speed (2013) [MWh] 8,581 13,010 17,262 21,030 24,193 26,713ENERCON E-147 EP5 E2 5000 147.0 !O! Mode 0 Standard_5000 kW - preliminary [MWh] 8,091 12,179 16,183 19,811 22,914 25,414Check value [%] 6 7 7 6 6 5The table shows comparison between annual energy production calculated on basis of simplified "HP-curves" which assume that all WTGs performs quite similar - only specific power loading (kW/m^2)and single/dual speed or stall/pitch decides the calculated values. Productions are without wake losses.For further details, ask at the Danish Energy Agency for project report J.nr. 51171/00-0016 or see windPRO manual chapter 3.5.2.The method is refined in EMD report "20 Detailed Case Studies comparing Project Design Calculations and actual Energy Productions for Wind Energy Projects worldwide", jan 2003.Use the table to evaluate if the given power curve is reasonable - if the check value are lower than -5%, the power curve probably is too optimistic due to uncertainty in power curve measurement.
Power curveOriginal data, Air density: 1.225 kg/m³Wind speed Power Cp Wind speed Ct curve
[m/s] [kW] [m/s]3.0 68.0 0.24 3.0 0.883.5 143.0 0.32 3.5 0.844.0 248.0 0.37 4.0 0.834.5 382.0 0.40 4.5 0.835.0 548.0 0.42 5.0 0.825.5 748.0 0.43 5.5 0.826.0 986.0 0.44 6.0 0.826.5 1,263.0 0.44 6.5 0.817.0 1,578.0 0.44 7.0 0.797.5 1,926.0 0.44 7.5 0.778.0 2,297.0 0.43 8.0 0.748.5 2,676.0 0.42 8.5 0.709.0 3,050.0 0.40 9.0 0.659.5 3,406.0 0.38 9.5 0.6010.0 3,736.0 0.36 10.0 0.5510.5 4,036.0 0.34 10.5 0.5011.0 4,297.0 0.31 11.0 0.4611.5 4,514.0 0.29 11.5 0.4112.0 4,682.0 0.26 12.0 0.3712.5 4,804.0 0.24 12.5 0.3413.0 4,886.0 0.21 13.0 0.3013.5 4,937.0 0.19 13.5 0.2714.0 4,967.0 0.17 14.0 0.2414.5 4,984.0 0.16 14.5 0.2215.0 4,993.0 0.14 15.0 0.2015.5 4,997.0 0.13 15.5 0.1816.0 4,999.0 0.12 16.0 0.1616.5 5,000.0 0.11 16.5 0.1517.0 5,000.0 0.10 17.0 0.1417.5 5,000.0 0.09 17.5 0.1218.0 5,000.0 0.08 18.0 0.1118.5 5,000.0 0.08 18.5 0.1119.0 5,000.0 0.07 19.0 0.1019.5 5,000.0 0.06 19.5 0.0920.0 5,000.0 0.06 20.0 0.0920.5 5,000.0 0.06 20.5 0.0821.0 5,000.0 0.05 21.0 0.0721.5 5,000.0 0.05 21.5 0.0722.0 5,000.0 0.05 22.0 0.0722.5 5,000.0 0.04 22.5 0.0623.0 5,000.0 0.04 23.0 0.0623.5 5,000.0 0.04 23.5 0.0624.0 5,000.0 0.03 24.0 0.0524.5 5,000.0 0.03 24.5 0.0525.0 5,000.0 0.03 25.0 0.05
Power, Efficiency and energy vs. wind speedData used in calculation, Air density: 1.107 kg/m³ New windPRO method (adjustedIEC method, improved to match turbine control) <RECOMMENDED>Wind speed Power Cp Interval Energy Acc.Energy Relative
[m/s] [kW] [m/s] [MWh] [MWh] [%]1.0 0.0 0.00 0.50- 1.50 0.0 0.0 0.02.0 0.0 0.00 1.50- 2.50 0.0 0.0 0.03.0 52.5 0.21 2.50- 3.50 21.1 21.1 0.14.0 219.1 0.36 3.50- 4.50 99.6 120.7 0.55.0 490.8 0.42 4.50- 5.50 274.9 395.6 1.76.0 887.6 0.44 5.50- 6.50 592.5 988.1 4.27.0 1,426.1 0.44 6.50- 7.50 1,077.9 2,066.0 8.88.0 2,091.5 0.44 7.50- 8.50 1,696.2 3,762.3 16.09.0 2,803.4 0.41 8.50- 9.50 2,321.5 6,083.8 25.910.0 3,463.6 0.37 9.50-10.50 2,787.6 8,871.3 37.711.0 4,018.2 0.32 10.50-11.50 2,979.2 11,850.5 50.412.0 4,440.3 0.27 11.50-12.50 2,871.7 14,722.3 62.613.0 4,732.9 0.23 12.50-13.50 2,521.5 17,243.8 73.314.0 4,900.1 0.19 13.50-14.50 2,030.9 19,274.7 82.015.0 4,969.6 0.16 14.50-15.50 1,512.7 20,787.4 88.416.0 4,993.0 0.13 15.50-16.50 1,052.7 21,840.1 92.917.0 4,998.8 0.11 16.50-17.50 690.1 22,530.2 95.818.0 5,000.0 0.09 17.50-18.50 428.5 22,958.7 97.619.0 5,000.0 0.08 18.50-19.50 253.3 23,212.0 98.720.0 5,000.0 0.07 19.50-20.50 143.4 23,355.4 99.321.0 5,000.0 0.06 20.50-21.50 78.3 23,433.7 99.722.0 5,000.0 0.05 21.50-22.50 41.7 23,475.4 99.823.0 5,000.0 0.04 22.50-23.50 22.0 23,497.4 99.924.0 5,000.0 0.04 23.50-24.50 11.6 23,509.0 100.025.0 5,000.0 0.03 24.50-25.50 4.1 23,513.1 100.0
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PARK - TerrainCalculation: Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 05.09.2019Site Data: A - WAsP Gori II
Obstacles:
0 Obstacles used
Roughness:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\ROUGHNESSLINE_ONLINEDATA_1.wpoMin X: 398,219, Max X: 428,401, Min Y: 4,642,241, Max Y: 4,671,415, Width: 30,182 m, Height: 29,175 m
Orography:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\CONTOURLINE_ONLINEDATA_0.wpoMin X: 402,913, Max X: 423,154, Min Y: 4,646,647, Max Y: 4,666,294, Width: 20,242 m, Height: 19,648 m
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PARK - Wind Data AnalysisCalculation: Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 05.09.2019Wind data: A - WAsP Gori II; Hub height: 91.5Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.18 2.28 0.908 0.6 2.80 0.865 0.9 1 NNE 2.43 2.45 0.982 0.1 2.11 0.904 0.2 2 ENE 4.22 3.95 1.225 1.3 3.07 1.031 0.8 3 E 9.10 8.09 2.725 11.9 9.73 2.648 9.3 4 ESE 9.50 8.48 3.037 32.0 10.19 3.016 30.4 5 SSE 7.98 7.06 2.209 6.0 9.44 2.549 10.1 6 S 4.84 4.49 1.275 0.1 8.11 1.983 1.0 7 SSW 4.08 3.95 1.088 0.2 4.94 1.131 0.1 8 WSW 6.26 5.68 1.451 2.9 4.72 1.121 1.7 9 W 10.68 9.54 2.971 28.5 11.28 2.953 25.210 WNW 9.72 8.62 2.447 14.0 10.72 2.556 16.511 NNW 5.59 5.17 1.287 2.3 8.56 1.813 3.9All 9.46 8.40 2.525 100.0 10.17 2.524 100.0
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PARK - Wind Data AnalysisCalculation: Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 05.09.2019Wind data: A - WAsP Gori II; Hub height: 126.0Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.38 2.50 0.904 0.6 3.07 0.863 0.9 1 NNE 2.64 2.67 0.979 0.1 2.30 0.900 0.2 2 ENE 4.62 4.32 1.229 1.3 3.35 1.027 0.8 3 E 9.86 8.77 2.717 11.9 10.67 2.633 9.3 4 ESE 10.28 9.19 3.033 32.1 11.17 3.000 30.4 5 SSE 8.62 7.64 2.201 6.1 10.36 2.533 10.1 6 S 5.42 5.01 1.299 0.1 8.90 1.973 1.0 7 SSW 4.42 4.29 1.084 0.2 5.39 1.127 0.1 8 WSW 6.80 6.17 1.455 2.9 5.17 1.113 1.7 9 W 11.41 10.18 2.971 28.4 12.16 2.947 25.210 WNW 10.41 9.23 2.447 14.0 11.55 2.550 16.511 NNW 6.02 5.58 1.283 2.3 9.27 1.807 3.9All 10.18 9.04 2.529 100.0 11.06 2.523 100.0
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PARK - Park power curveCalculation: Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 05.09.2019
PowerWind Free Park N NNE ENE E ESE SSE S SSW WSW W WNW NNWspeed WTGs WTGs[m/s] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW]
0.5 0 0 0 0 0 0 0 0 0 0 0 0 0 01.5 0 0 0 0 0 0 0 0 0 0 0 0 0 02.5 0 0 0 0 0 0 0 0 0 0 0 0 0 03.5 250 230 228 250 250 250 225 132 228 250 250 250 237 1314.5 682 639 635 682 682 682 627 434 635 682 682 682 652 4345.5 1,346 1,269 1,263 1,346 1,346 1,346 1,248 904 1,263 1,346 1,346 1,346 1,294 9046.5 2,281 2,158 2,149 2,281 2,281 2,281 2,124 1,575 2,149 2,281 2,281 2,281 2,198 1,5747.5 3,497 3,326 3,317 3,497 3,497 3,497 3,279 2,508 3,317 3,497 3,497 3,497 3,384 2,5088.5 4,902 4,703 4,701 4,902 4,902 4,902 4,653 3,720 4,702 4,902 4,902 4,902 4,779 3,7219.5 6,295 6,107 6,118 6,295 6,295 6,295 6,061 5,159 6,118 6,295 6,295 6,295 6,188 5,161
10.5 7,518 7,371 7,383 7,518 7,518 7,518 7,338 6,614 7,383 7,518 7,518 7,518 7,437 6,61611.5 8,497 8,399 8,406 8,497 8,497 8,497 8,385 7,868 8,406 8,497 8,497 8,497 8,442 7,86912.5 9,210 9,152 9,155 9,210 9,210 9,210 9,149 8,812 9,155 9,210 9,210 9,210 9,178 8,81313.5 9,667 9,638 9,640 9,667 9,667 9,667 9,638 9,462 9,639 9,667 9,667 9,667 9,651 9,46414.5 9,888 9,877 9,878 9,888 9,888 9,888 9,878 9,808 9,878 9,888 9,888 9,888 9,883 9,81015.5 9,970 9,967 9,967 9,970 9,970 9,970 9,967 9,946 9,967 9,970 9,970 9,970 9,968 9,94716.5 9,994 9,993 9,993 9,994 9,994 9,994 9,993 9,988 9,993 9,994 9,994 9,994 9,993 9,98917.5 10,000 10,000 10,000 10,000 10,000 10,000 10,000 9,999 10,000 10,000 10,000 10,000 10,000 9,99918.5 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,00019.5 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,00020.5 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,00021.5 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,00022.5 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,00023.5 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,00024.5 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,00025.5 0 0 0 0 0 0 0 0 0 0 0 0 0 026.5 0 0 0 0 0 0 0 0 0 0 0 0 0 027.5 0 0 0 0 0 0 0 0 0 0 0 0 0 028.5 0 0 0 0 0 0 0 0 0 0 0 0 0 029.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Description:The park power curve is similar to a WTG power curve, meaning that when a given wind speed appears in front of the park with same speed in the entire wind farm area(before influence from the park), the output from the park can be found in the park power curve. Another way to say this: The park power curve includes wake losses, butdo NOT include terrain given variations in the wind speed over the park area.Measuring a park power curve is not as simple as measuring a WTG power curve due to the fact that the park power curve depends on the wind direction and that the samewind speed normally will not appear for the entire park area at the same time (only in very flat non-complex terrain). The idea with this version of the park power curve isnot to use it for validation based on measurements. This would require at least 2 measurement masts at two sides of the park, unless only a few direction sectors should betested, AND non complex terrain (normally only useable off shore). Another park power curve version for complex terrain is available in windPRO.
The park power curve can be used for:1. Forecast systems, based on more rough (approximated) wind data, the park power curve would be an efficient way to make the connection from wind speed (and
direction) to power.2. Construction of duration curves, telling how often a given power output will appear, the park power curve can be used together with the average wind distribution
for the Wind farm area in hub height. The average wind distribution can eventually be obtained based on the Weibull parameters for each WTG position. These arefound at print menu: >Result to file< in the >Park result< which can be saved to file or copied to clipboard and pasted in Excel.
3. Calculation of wind energy index based on the PARK production (see below).4. Estimation of the expected PARK production for an existing wind farm based on wind measurements at minimum 2 measurement masts at two sides of wind farm.
The masts must be used for obtaining the free wind speed. The free wind speed is used in the simulation of expected energy production with the PARK powercurve. This procedure will only work suitable in non complex terrains. For complex terrain another park power curve calculation is available in windPRO(PPV-model).
Note:From the >Result to file< the >Wind Speeds Inside Wind farm< is also available. These can (e.g. via Excel) be used for extracting the wake induced reductions in measuredwind speed.
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PARK - WTG distancesCalculation: Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 05.09.2019
Scale 1:100,000New WTG Existing WTG
WTG distancesZ Nearest WTG Z Horizontal Distance in
distance rotor diameters[m] [m] [m]
1 840.0 2 815.3 337 2.32 815.3 1 840.0 337 2.33 864.2 8 850.8 286 2.44 819.2 5 822.3 358 3.15 822.3 4 819.2 358 3.16 830.9 7 835.0 455 3.97 835.0 8 850.8 374 3.28 850.8 3 864.2 286 2.4
Min 815.3 815.3 286 2.3Max 864.2 864.2 455 3.9
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PARK - Wind statistics infoCalculation: Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 05.09.2019Main data for wind statisticFile E:\work\WindPRO Data\Projects\Gori II\GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wwsName Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3))Country GeorgiaSource USERMast coordinates UTM (north)-WGS84 Zone: 38 East: 420,904 North: 4,653,454Created 12/07/2019Edited 12/07/2019Sectors 12WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Displacement height None
CommentsFrom MCP
Additional info for wind statisticBased on measurement height 80.0 mBase elevation for measurement mast 845.6 m
Long term correction informationMethod Matrix MCPSource data MERRA_basic_E44.002_N42.000 (3)Distance to source data 4.8 kmLong term period from 01/01/1989Long term period to 01/03/2016Concurrent period from 07/08/2013Concurrent period to 01/03/2016Concurrent data records 10255Concurrent record interval 60 minutesConcurrent data recovery 67.1 %
Number of years with long term data 27.2 yearsNumber of months with concurrent data 14.0 Months
Correlation test based on Concurrent monthly windindicesPower curve used for index Simple power curve truncated at: 14.0 m/sData availability demand for inclusion of month 60 %Number of months 20r^2 - wind index 0.7892r - wind index 0.8884s - wind index 6.1510
NoteTo get the most correct calculation results, wind statistics shall be calculated with the SAME model and model parameters, as currently chosen incalculation. For WAsP versions before 10.0, the model is unchanged, but thereafter more model changes affecting the wind statistic is seen. LikewiseWAsP CFD should always use WAsP CFD calculated wind statistics.
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PARK - RIX calculationCalculation: Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 05.09.2019Assumptions
Radius for calculation 3,500 mSteepness threshold 30.0 % / 17 °Directional weight Equally distributedRIX for wind statistic Calculated on windstatistic position. If not available Site data position is usedHeight contours used HCLAlfa 1.0No RIX correction for delta RIX in interval -5.0 % - 5.0 %
Reference sitesTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Site Data/Wind statistics Reference site RIX[%]
A 420,904 4,653,454 Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)) 1.8
WTG sitesUTM (north)-WGS84 Zone: 38
Links Easting Northing Z Reference site RIX WTG RIX Delta RIX (WTG site - Reference site) RIX correction[m] [%] [%] [%] [MWh/y]
1 A 416,358 4,656,168 840.0 1.8 0.0 -1.8 0.002 A 416,519 4,655,872 815.3 1.8 0.0 -1.8 0.003 A 421,119 4,653,602 864.2 1.8 2.1 0.3 0.004 A 421,280 4,651,670 819.2 1.8 1.4 -0.4 0.005 A 421,419 4,652,000 822.3 1.8 1.3 -0.5 0.006 A 421,118 4,652,595 830.9 1.8 1.1 -0.7 0.007 A 420,938 4,653,012 835.0 1.8 1.3 -0.5 0.008 A 421,153 4,653,318 850.8 1.8 1.6 -0.2 0.00
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PARK - RIX calculationCalculation: Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 05.09.2019
Latest research /Risø/ show that the threshold in RIX calculation typically work best with 40% (new default), and that delta Rix within+/- 5% should not give corrections. Cross predictions based on more mast can fine tune the threshold, see Cross predictor tool inwindPRO Meteo Analyzer. In windPRO LOSS&&UNCERTAINTY module, RIX correction can be calculated automatically as a bias basedon most recent recommended correction formulas, which can be found in EWEC2006 && 08 papers on Rix from Risø, see extractbelow:
The main conclusion based on use of the RIX method is that if both reference site (measurement mast) and predicted site (WTG) areequally rugged (Delta RIX < 5%), very small calculation errors are expected.If reference site (measurement mast) is very rugged, e.g. RIX = 0.2 and predicted site (WTG) are less rugged (e.g. RIX = 0), Delta RIXwill be -0.2 and according to the graph, 30% too low wind speed prediction at WTG site could be expected. This could lead to around60%*) too low calculated energy production.If the reference site is less rugged, e.g. RIX = 0, and the predicted site (WTG) are very rugged (e.g. RIX = 0.2), Delta RIX will be +0.2,and according to the graph, 30% too high wind speed prediction at WTG site could be expected. This could lead to around 60%*) toohigh calculated energy production.*) Doubling of energy prediction error based on mean wind speed error is a rough conversion, which holds for wind speeds around 8m/s. At 6-7 m/s tripling is more right, while only 1.5 factors should be used for 9 m/s, see graph below based on a typical WTG.
Source: EWEC06 paper:IMPROVING WAsP PREDICTIONS IN (TOO) COMPLEX TERRAINNiels G. Mortensen, Anthony J. Bowen and Ioannis AntoniouWind Energy Department, Risø National Laboratory
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PARK - MapCalculation: Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 05.09.2019
0 500 1000 1500 2000 mMap: BigGameHunter , Print scale 1:40,000, Map center UTM (north)-WGS84 Zone: 38 East: 418,888 North: 4,653,919
New WTG Existing WTG
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PARK - Main ResultCalculation: Park Gori II 3wtg's N149-4.5 Hub=105m 05.09.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 105.0 m = 1.121 kg/m³ -> 91.5 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:12,500
New WTG Site Data
Key results for height 105.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent roughnessdistribution
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 4,896 8.6 1.9
Calculated Annual Energy for Wind FarmSpecific results¤)
WTG combination Result GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speedPARK Free WTGs factor result hours @hub height
[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s]Wind farm 67,036.7 68,195.8 1.7 56.6 22,345.6 4,966 8.6¤) Based on wake reduced results, but no other losses included
*) Included in wake losses is influence from 6 WTG(s) in the neighborhood, which has status as "Reference WTGs", see separate report to identify these.
Calculated Annual Energy for each of 3 new WTGs with total 13.5 MW rated powerWTG type Power curve Annual Energy
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Result Wake Free rated diameter height loss mean
wind speed
[kW] [m] [m] [MWh/y] [%] [m/s]1 A Yes NORDEX N149/4.0-4.5-4,500 4,500 149.0 105.0 EMD Mode 00 - 4500kW - 1.225 kg/m³ - ESCO R04 22,959.9 2.9 8.942 A Yes NORDEX N149/4.0-4.5-4,500 4,500 149.0 105.0 EMD Mode 00 - 4500kW - 1.225 kg/m³ - ESCO R04 21,946.2 0.7 8.453 A Yes NORDEX N149/4.0-4.5-4,500 4,500 149.0 105.0 EMD Mode 00 - 4500kW - 1.225 kg/m³ - ESCO R04 22,130.7 1.4 8.56
Annual Energy results do not include any losses apart from wake losses. Additional losses and uncertainty must be considered for an investmentdecision.
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description
[m]1 New 416,358 4,656,168 840.0 NORDEX N149/4.0-4.5 4500 149.0 !O! hub: 105.0 m (TOT: 179.5 m) (48)2 New 416,443 4,655,527 794.7 NORDEX N149/4.0-4.5 4500 149.0 !O! hub: 105.0 m (TOT: 179.5 m) (49)3 New 416,519 4,655,872 815.3 NORDEX N149/4.0-4.5 4500 149.0 !O! hub: 105.0 m (TOT: 179.5 m) (50)
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PARK - Reference WTGsCalculation: Park Gori II 3wtg's N149-4.5 Hub=105m 05.09.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 105.0 m = 1.121 kg/m³ -> 91.5 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Existing WTG
Key results for height 105.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent roughnessdistribution
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 4,896 8.6 1.9
Calculated Annual Energy for reference WTGsSpecific results Specific results
Calculated GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speed Actual wind corrected Goodness Factorprod. without Free WTGs factor result hours @hub height energy
new WTGs[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s] [MWh/y] [%]98,795.5 99,245.5 0.6 54.4 16,465.9 4,773 9.0 0.0
Calculated Annual Energy for each of 6 reference WTGs with total 20.7 MW rated powerWTG type Power curve
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Calculated Goodness rated diameter height prod. Factor
without new WTGs
[kW] [m] [m] [MWh/y] [%]4 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,887.8 05 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 15,756.9 06 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,157.4 07 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,495.5 08 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,396.5 09 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 17,101.4 0
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]4 421,119 4,653,602 864.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (1)5 421,280 4,651,670 819.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (2)6 421,419 4,652,000 822.3 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (3)7 421,118 4,652,595 830.9 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (4)
To be continued on next page...
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PARK - Reference WTGsCalculation: Park Gori II 3wtg's N149-4.5 Hub=105m 05.09.2019...continued from previous page
UTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]8 420,938 4,653,012 835.0 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (5)9 421,153 4,653,318 850.8 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (6)
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PARK - Production AnalysisCalculation: Park Gori II 3wtg's N149-4.5 Hub=105m 05.09.2019WTG: All new WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.114 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 41.0 9.3 226.9 6,743.0 19,468.3 2,778.5 65.0 35.2 1,186.4 19,688.8 8,527.7 642.5 59,412.5+Increase due to hills [MWh] 35.4 4.5 313.2 1,201.5 2,379.5 446.1 101.5 15.6 820.7 2,447.4 882.0 135.9 8,783.2-Decrease due to wake losses [MWh] 9.0 0.8 0.0 0.0 563.4 387.4 28.8 2.5 0.0 0.0 84.4 82.8 1,159.1Resulting energy [MWh] 67.4 13.0 540.1 7,944.5 21,284.3 2,837.1 137.7 48.4 2,007.1 22,136.1 9,325.3 695.6 67,036.7Specific energy [kWh/m²] 1,282Specific energy [kWh/kW] 4,966Increase due to hills [%] 86.2 48.2 138.1 17.8 12.2 16.1 156.2 44.4 69.2 12.4 10.3 21.1 14.78Decrease due to wake losses [%] 11.8 5.5 0.0 0.0 2.6 12.0 17.3 4.9 0.0 0.0 0.9 10.6 1.70Utilization [%] 22.2 27.5 26.5 29.3 29.4 26.0 22.7 21.1 22.7 24.1 24.2 19.9 26.2Operational [Hours/year] 59 12 151 1,034 2,677 524 34 18 352 2,370 1,173 203 8,607Full Load Equivalent [Hours/year] 5 1 40 588 1,577 210 10 4 149 1,640 691 52 4,966
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PARK - Production AnalysisCalculation: Park Gori II 3wtg's N149-4.5 Hub=105m 05.09.2019WTG: All existing WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.114 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 41.5 12.3 275.4 9,755.1 23,431.9 2,991.1 27.4 37.0 1,394.9 27,396.4 10,983.1 743.0 77,089.1+Increase due to hills [MWh] 20.3 2.5 282.0 3,780.8 6,429.0 532.1 55.1 12.1 889.4 7,721.2 2,324.0 108.0 22,156.4-Decrease due to wake losses [MWh] 10.8 1.9 3.5 0.0 0.0 332.0 9.5 5.6 11.6 0.0 159.9 75.4 610.1Resulting energy [MWh] 51.0 12.9 553.8 13,535.9 29,860.9 3,191.1 73.1 43.5 2,272.7 35,117.6 13,147.3 775.6 98,635.4Specific energy [kWh/m²] 1,529Specific energy [kWh/kW] 4,765Increase due to hills [%] 48.9 20.0 102.4 38.8 27.4 17.8 201.0 32.7 63.8 28.2 21.2 14.5 28.74Decrease due to wake losses [%] 17.5 13.0 0.6 0.0 0.0 9.4 11.5 11.4 0.5 0.0 1.2 8.9 0.61Utilization [%] 24.2 27.5 27.6 29.9 32.2 30.4 27.7 22.7 24.4 24.3 25.2 23.1 27.4Operational [Hours/year] 50 13 130 1,183 2,598 470 15 16 306 2,498 1,146 183 8,608Full Load Equivalent [Hours/year] 2 1 27 654 1,443 154 4 2 110 1,697 635 37 4,765
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PARK - Power Curve AnalysisCalculation: Park Gori II 3wtg's N149-4.5 Hub=105m 05.09.2019WTG: 1 - NORDEX N149/4.0-4.5 4500 149.0 !O!, Hub height: 105.0 mName: Mode 00 - 4500kW - 1.225 kg/m³ - ESCO R04Source: F008_270_A13_R04
Source/Date Created by Created Edited Stop wind speed Power control CT curve type Generator type Specific power[m/s] kW/m²
08/11/2018 EMD 03/07/2017 20/12/2018 26.0 Pitch User defined Variable 0.26
HP curve comparison - Note: For standard air density
Vmean [m/s] 5 6 7 8 9 10HP value Pitch, variable speed (2013) [MWh] 8,583 12,750 16,640 20,011 22,797 24,986NORDEX N149/4.0-4.5 4500 149.0 !O! Mode 00 - 4500kW - 1.225 kg/m³ - ESCO R04 [MWh] 8,679 12,893 16,803 20,161 22,891 24,984Check value [%] -1 -1 -1 -1 0 0The table shows comparison between annual energy production calculated on basis of simplified "HP-curves" which assume that all WTGs performs quite similar - only specific power loading (kW/m^2)and single/dual speed or stall/pitch decides the calculated values. Productions are without wake losses.For further details, ask at the Danish Energy Agency for project report J.nr. 51171/00-0016 or see windPRO manual chapter 3.5.2.The method is refined in EMD report "20 Detailed Case Studies comparing Project Design Calculations and actual Energy Productions for Wind Energy Projects worldwide", jan 2003.Use the table to evaluate if the given power curve is reasonable - if the check value are lower than -5%, the power curve probably is too optimistic due to uncertainty in power curve measurement.
Power curveOriginal data, Air density: 1.225 kg/m³Wind speed Power Cp Wind speed Ct curve
[m/s] [kW] [m/s]3.0 31.0 0.11 3.0 0.833.5 122.0 0.27 3.5 0.834.0 247.0 0.36 4.0 0.824.5 400.0 0.41 4.5 0.815.0 584.0 0.44 5.0 0.805.5 800.0 0.45 5.5 0.796.0 1,054.0 0.46 6.0 0.796.5 1,349.0 0.46 6.5 0.797.0 1,691.0 0.46 7.0 0.797.5 2,083.0 0.46 7.5 0.798.0 2,527.0 0.46 8.0 0.778.5 3,016.0 0.46 8.5 0.749.0 3,506.0 0.45 9.0 0.709.5 3,894.0 0.43 9.5 0.6510.0 4,177.0 0.39 10.0 0.5910.5 4,367.0 0.35 10.5 0.5411.0 4,470.0 0.31 11.0 0.4911.5 4,500.0 0.28 11.5 0.4412.0 4,500.0 0.24 12.0 0.3912.5 4,500.0 0.22 12.5 0.3513.0 4,500.0 0.19 13.0 0.3013.5 4,500.0 0.17 13.5 0.2714.0 4,500.0 0.15 14.0 0.2314.5 4,500.0 0.14 14.5 0.2115.0 4,500.0 0.12 15.0 0.1915.5 4,500.0 0.11 15.5 0.1716.0 4,500.0 0.10 16.0 0.1516.5 4,500.0 0.09 16.5 0.1417.0 4,500.0 0.09 17.0 0.1317.5 4,500.0 0.08 17.5 0.1218.0 4,500.0 0.07 18.0 0.1118.5 4,500.0 0.07 18.5 0.1019.0 4,500.0 0.06 19.0 0.1019.5 4,500.0 0.06 19.5 0.0920.0 4,500.0 0.05 20.0 0.0920.5 4,455.0 0.05 20.5 0.0821.0 4,307.0 0.04 21.0 0.0821.5 4,131.0 0.04 21.5 0.0722.0 3,951.0 0.03 22.0 0.0622.5 3,776.0 0.03 22.5 0.0523.0 3,600.0 0.03 23.0 0.0523.5 3,420.0 0.02 23.5 0.0424.0 3,245.0 0.02 24.0 0.0424.5 3,065.0 0.02 24.5 0.0425.0 2,885.0 0.02 25.0 0.0325.5 2,705.0 0.02 25.5 0.0326.0 2,529.0 0.01 26.0 0.03
Power, Efficiency and energy vs. wind speedData used in calculation, Air density: 1.109 kg/m³ New windPRO method (adjustedIEC method, improved to match turbine control) <RECOMMENDED>Wind speed Power Cp Interval Energy Acc.Energy Relative
[m/s] [kW] [m/s] [MWh] [MWh] [%]1.0 0.0 0.00 0.50- 1.50 0.0 0.0 0.02.0 0.0 0.00 1.50- 2.50 0.0 0.0 0.03.0 12.6 0.05 2.50- 3.50 18.3 18.3 0.14.0 213.2 0.34 3.50- 4.50 106.4 124.7 0.55.0 521.9 0.43 4.50- 5.50 315.9 440.6 1.96.0 951.1 0.46 5.50- 6.50 685.2 1,125.7 4.97.0 1,529.4 0.46 6.50- 7.50 1,243.6 2,369.4 10.38.0 2,285.9 0.46 7.50- 8.50 1,976.0 4,345.3 18.99.0 3,189.1 0.45 8.50- 9.50 2,738.0 7,083.4 30.910.0 3,947.7 0.41 9.50-10.50 3,205.1 10,288.5 44.811.0 4,359.4 0.34 10.50-11.50 3,179.4 13,467.8 58.712.0 4,490.5 0.27 11.50-12.50 2,771.2 16,239.0 70.713.0 4,500.0 0.21 12.50-13.50 2,198.1 18,437.1 80.314.0 4,500.0 0.17 13.50-14.50 1,626.3 20,063.4 87.415.0 4,500.0 0.14 14.50-15.50 1,130.2 21,193.6 92.316.0 4,500.0 0.11 15.50-16.50 739.1 21,932.7 95.517.0 4,500.0 0.09 16.50-17.50 456.3 22,389.0 97.518.0 4,500.0 0.08 17.50-18.50 267.1 22,656.1 98.719.0 4,500.0 0.07 18.50-19.50 149.1 22,805.2 99.320.0 4,500.0 0.06 19.50-20.50 79.7 22,884.9 99.721.0 4,307.0 0.05 20.50-21.50 40.2 22,925.0 99.822.0 3,951.0 0.04 21.50-22.50 19.0 22,944.0 99.923.0 3,600.0 0.03 22.50-23.50 8.9 22,952.9 100.024.0 3,245.0 0.02 23.50-24.50 4.2 22,957.1 100.025.0 2,885.0 0.02 24.50-25.50 2.0 22,959.2 100.026.0 2,529.0 0.01 25.50-26.50 0.7 22,959.9 100.0
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PARK - TerrainCalculation: Park Gori II 3wtg's N149-4.5 Hub=105m 05.09.2019Site Data: A - WAsP Gori II
Obstacles:
0 Obstacles used
Roughness:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\ROUGHNESSLINE_ONLINEDATA_1.wpoMin X: 398,219, Max X: 428,401, Min Y: 4,642,241, Max Y: 4,671,415, Width: 30,182 m, Height: 29,175 m
Orography:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\CONTOURLINE_ONLINEDATA_0.wpoMin X: 402,913, Max X: 423,154, Min Y: 4,646,647, Max Y: 4,666,294, Width: 20,242 m, Height: 19,648 m
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PARK - Wind Data AnalysisCalculation: Park Gori II 3wtg's N149-4.5 Hub=105m 05.09.2019Wind data: A - WAsP Gori II; Hub height: 91.5Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.18 2.28 0.908 0.6 2.80 0.865 0.9 1 NNE 2.43 2.45 0.982 0.1 2.11 0.904 0.2 2 ENE 4.22 3.95 1.225 1.3 3.07 1.031 0.8 3 E 9.10 8.09 2.725 11.9 9.73 2.648 9.3 4 ESE 9.50 8.48 3.037 32.0 10.19 3.016 30.4 5 SSE 7.98 7.06 2.209 6.0 9.44 2.549 10.1 6 S 4.84 4.49 1.275 0.1 8.11 1.983 1.0 7 SSW 4.08 3.95 1.088 0.2 4.94 1.131 0.1 8 WSW 6.26 5.68 1.451 2.9 4.72 1.121 1.7 9 W 10.68 9.54 2.971 28.5 11.28 2.953 25.210 WNW 9.72 8.62 2.447 14.0 10.72 2.556 16.511 NNW 5.59 5.17 1.287 2.3 8.56 1.813 3.9All 9.46 8.40 2.525 100.0 10.17 2.524 100.0
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PARK - Wind Data AnalysisCalculation: Park Gori II 3wtg's N149-4.5 Hub=105m 05.09.2019Wind data: A - WAsP Gori II; Hub height: 105.0Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.27 2.36 0.916 0.6 2.91 0.869 0.9 1 NNE 2.52 2.53 0.990 0.1 2.19 0.908 0.2 2 ENE 4.37 4.08 1.236 1.3 3.19 1.037 0.8 3 E 9.39 8.35 2.752 11.9 10.08 2.662 9.3 4 ESE 9.79 8.75 3.068 32.1 10.55 3.032 30.4 5 SSE 8.22 7.28 2.229 6.0 9.78 2.562 10.1 6 S 5.04 4.66 1.291 0.1 8.41 1.994 1.0 7 SSW 4.22 4.08 1.096 0.2 5.12 1.137 0.1 8 WSW 6.47 5.86 1.463 2.9 4.90 1.126 1.7 9 W 10.96 9.79 2.998 28.4 11.62 2.973 25.210 WNW 9.99 8.86 2.471 14.0 11.04 2.574 16.511 NNW 5.77 5.33 1.295 2.3 8.84 1.825 3.9All 9.73 8.64 2.549 100.0 10.51 2.540 100.0
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PARK - Park power curveCalculation: Park Gori II 3wtg's N149-4.5 Hub=105m 05.09.2019
PowerWind Free Park N NNE ENE E ESE SSE S SSW WSW W WNW NNWspeed WTGs WTGs[m/s] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW]
0.5 0 0 0 0 0 0 0 0 0 0 0 0 0 01.5 0 0 0 0 0 0 0 0 0 0 0 0 0 02.5 0 0 0 0 0 0 0 0 0 0 0 0 0 03.5 303 277 174 242 303 303 262 202 161 242 303 303 286 1884.5 1,064 1,003 729 914 1,064 1,064 980 775 705 914 1,064 1,064 1,029 7505.5 2,165 2,062 1,604 1,914 2,165 2,165 2,023 1,678 1,565 1,914 2,165 2,165 2,108 1,6396.5 3,667 3,507 2,793 3,276 3,667 3,667 3,443 2,911 2,732 3,276 3,667 3,667 3,577 2,8487.5 5,667 5,427 4,364 5,082 5,667 5,667 5,331 4,541 4,273 5,084 5,667 5,667 5,532 4,4478.5 8,204 7,886 6,475 7,433 8,204 8,204 7,756 6,706 6,358 7,435 8,204 8,204 8,030 6,5859.5 10,861 10,554 9,067 10,081 10,861 10,861 10,467 9,265 8,964 10,081 10,861 10,861 10,706 9,165
10.5 12,589 12,401 11,405 12,092 12,589 12,589 12,381 11,473 11,358 12,091 12,589 12,589 12,509 11,43711.5 13,363 13,294 12,904 13,173 13,363 13,363 13,297 12,915 12,890 13,172 13,363 13,363 13,336 12,90812.5 13,500 13,492 13,435 13,475 13,500 13,500 13,499 13,424 13,434 13,474 13,500 13,500 13,499 13,42913.5 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,50014.5 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,50015.5 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,50016.5 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,50017.5 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,50018.5 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,50019.5 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,50020.5 13,365 13,375 13,418 13,389 13,365 13,365 13,380 13,410 13,425 13,390 13,365 13,365 13,371 13,41421.5 12,393 12,417 12,533 12,454 12,393 12,393 12,423 12,518 12,541 12,454 12,393 12,393 12,405 12,52622.5 11,328 11,348 11,445 11,379 11,328 11,328 11,354 11,433 11,452 11,379 11,328 11,328 11,338 11,43923.5 10,260 10,278 10,360 10,304 10,260 10,260 10,284 10,350 10,366 10,304 10,260 10,260 10,269 10,35524.5 9,195 9,211 9,280 9,232 9,195 9,195 9,217 9,272 9,285 9,232 9,195 9,195 9,203 9,27625.5 8,115 8,124 8,186 8,146 8,115 8,115 8,121 8,179 8,191 8,146 8,115 8,115 8,121 8,18326.5 0 0 0 0 0 0 0 0 0 0 0 0 0 027.5 0 0 0 0 0 0 0 0 0 0 0 0 0 028.5 0 0 0 0 0 0 0 0 0 0 0 0 0 029.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Description:The park power curve is similar to a WTG power curve, meaning that when a given wind speed appears in front of the park with same speed in the entire wind farm area(before influence from the park), the output from the park can be found in the park power curve. Another way to say this: The park power curve includes wake losses, butdo NOT include terrain given variations in the wind speed over the park area.Measuring a park power curve is not as simple as measuring a WTG power curve due to the fact that the park power curve depends on the wind direction and that the samewind speed normally will not appear for the entire park area at the same time (only in very flat non-complex terrain). The idea with this version of the park power curve isnot to use it for validation based on measurements. This would require at least 2 measurement masts at two sides of the park, unless only a few direction sectors should betested, AND non complex terrain (normally only useable off shore). Another park power curve version for complex terrain is available in windPRO.
The park power curve can be used for:1. Forecast systems, based on more rough (approximated) wind data, the park power curve would be an efficient way to make the connection from wind speed (and
direction) to power.2. Construction of duration curves, telling how often a given power output will appear, the park power curve can be used together with the average wind distribution
for the Wind farm area in hub height. The average wind distribution can eventually be obtained based on the Weibull parameters for each WTG position. These arefound at print menu: >Result to file< in the >Park result< which can be saved to file or copied to clipboard and pasted in Excel.
3. Calculation of wind energy index based on the PARK production (see below).4. Estimation of the expected PARK production for an existing wind farm based on wind measurements at minimum 2 measurement masts at two sides of wind farm.
The masts must be used for obtaining the free wind speed. The free wind speed is used in the simulation of expected energy production with the PARK powercurve. This procedure will only work suitable in non complex terrains. For complex terrain another park power curve calculation is available in windPRO(PPV-model).
Note:From the >Result to file< the >Wind Speeds Inside Wind farm< is also available. These can (e.g. via Excel) be used for extracting the wake induced reductions in measuredwind speed.
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PARK - WTG distancesCalculation: Park Gori II 3wtg's N149-4.5 Hub=105m 05.09.2019
Scale 1:100,000New WTG Existing WTG
WTG distancesZ Nearest WTG Z Horizontal Distance in
distance rotor diameters[m] [m] [m]
1 840.0 3 815.3 337 2.32 794.7 3 815.3 353 2.43 815.3 1 840.0 337 2.34 864.2 9 850.8 286 2.45 819.2 6 822.3 358 3.16 822.3 5 819.2 358 3.17 830.9 8 835.0 455 3.98 835.0 9 850.8 374 3.29 850.8 4 864.2 286 2.4
Min 794.7 815.3 286 2.3Max 864.2 864.2 455 3.9
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PARK - Wind statistics infoCalculation: Park Gori II 3wtg's N149-4.5 Hub=105m 05.09.2019Main data for wind statisticFile E:\work\WindPRO Data\Projects\Gori II\GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wwsName Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3))Country GeorgiaSource USERMast coordinates UTM (north)-WGS84 Zone: 38 East: 420,904 North: 4,653,454Created 12/07/2019Edited 12/07/2019Sectors 12WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Displacement height None
CommentsFrom MCP
Additional info for wind statisticBased on measurement height 80.0 mBase elevation for measurement mast 845.6 m
Long term correction informationMethod Matrix MCPSource data MERRA_basic_E44.002_N42.000 (3)Distance to source data 4.8 kmLong term period from 01/01/1989Long term period to 01/03/2016Concurrent period from 07/08/2013Concurrent period to 01/03/2016Concurrent data records 10255Concurrent record interval 60 minutesConcurrent data recovery 67.1 %
Number of years with long term data 27.2 yearsNumber of months with concurrent data 14.0 Months
Correlation test based on Concurrent monthly windindicesPower curve used for index Simple power curve truncated at: 14.0 m/sData availability demand for inclusion of month 60 %Number of months 20r^2 - wind index 0.7892r - wind index 0.8884s - wind index 6.1510
NoteTo get the most correct calculation results, wind statistics shall be calculated with the SAME model and model parameters, as currently chosen incalculation. For WAsP versions before 10.0, the model is unchanged, but thereafter more model changes affecting the wind statistic is seen. LikewiseWAsP CFD should always use WAsP CFD calculated wind statistics.
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PARK - RIX calculationCalculation: Park Gori II 3wtg's N149-4.5 Hub=105m 05.09.2019Assumptions
Radius for calculation 3,500 mSteepness threshold 30.0 % / 17 °Directional weight Equally distributedRIX for wind statistic Calculated on windstatistic position. If not available Site data position is usedHeight contours used HCLAlfa 1.0No RIX correction for delta RIX in interval -5.0 % - 5.0 %
Reference sitesTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Site Data/Wind statistics Reference site RIX[%]
A 420,904 4,653,454 Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)) 1.8
WTG sitesUTM (north)-WGS84 Zone: 38
Links Easting Northing Z Reference site RIX WTG RIX Delta RIX (WTG site - Reference site) RIX correction[m] [%] [%] [%] [MWh/y]
1 A 416,358 4,656,168 840.0 1.8 0.0 -1.8 0.002 A 416,443 4,655,527 794.7 1.8 0.0 -1.8 0.003 A 416,519 4,655,872 815.3 1.8 0.0 -1.8 0.004 A 421,119 4,653,602 864.2 1.8 2.1 0.3 0.005 A 421,280 4,651,670 819.2 1.8 1.4 -0.4 0.006 A 421,419 4,652,000 822.3 1.8 1.3 -0.5 0.007 A 421,118 4,652,595 830.9 1.8 1.1 -0.7 0.008 A 420,938 4,653,012 835.0 1.8 1.3 -0.5 0.009 A 421,153 4,653,318 850.8 1.8 1.6 -0.2 0.00
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PARK - RIX calculationCalculation: Park Gori II 3wtg's N149-4.5 Hub=105m 05.09.2019
Latest research /Risø/ show that the threshold in RIX calculation typically work best with 40% (new default), and that delta Rix within+/- 5% should not give corrections. Cross predictions based on more mast can fine tune the threshold, see Cross predictor tool inwindPRO Meteo Analyzer. In windPRO LOSS&&UNCERTAINTY module, RIX correction can be calculated automatically as a bias basedon most recent recommended correction formulas, which can be found in EWEC2006 && 08 papers on Rix from Risø, see extractbelow:
The main conclusion based on use of the RIX method is that if both reference site (measurement mast) and predicted site (WTG) areequally rugged (Delta RIX < 5%), very small calculation errors are expected.If reference site (measurement mast) is very rugged, e.g. RIX = 0.2 and predicted site (WTG) are less rugged (e.g. RIX = 0), Delta RIXwill be -0.2 and according to the graph, 30% too low wind speed prediction at WTG site could be expected. This could lead to around60%*) too low calculated energy production.If the reference site is less rugged, e.g. RIX = 0, and the predicted site (WTG) are very rugged (e.g. RIX = 0.2), Delta RIX will be +0.2,and according to the graph, 30% too high wind speed prediction at WTG site could be expected. This could lead to around 60%*) toohigh calculated energy production.*) Doubling of energy prediction error based on mean wind speed error is a rough conversion, which holds for wind speeds around 8m/s. At 6-7 m/s tripling is more right, while only 1.5 factors should be used for 9 m/s, see graph below based on a typical WTG.
Source: EWEC06 paper:IMPROVING WAsP PREDICTIONS IN (TOO) COMPLEX TERRAINNiels G. Mortensen, Anthony J. Bowen and Ioannis AntoniouWind Energy Department, Risø National Laboratory
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PARK - MapCalculation: Park Gori II 3wtg's N149-4.5 Hub=105m 05.09.2019
0 500 1000 1500 2000 mMap: BigGameHunter , Print scale 1:40,000, Map center UTM (north)-WGS84 Zone: 38 East: 418,888 North: 4,653,919
New WTG Existing WTG
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PARK - Main ResultCalculation: Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 05.09.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 109.0 m = 1.120 kg/m³ -> 91.5 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:12,500
New WTG Site Data
Key results for height 109.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent roughnessdistribution
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 5,038 8.7 1.9
Calculated Annual Energy for Wind FarmSpecific results¤)
WTG combination Result GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speedPARK Free WTGs factor result hours @hub height
[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s]Wind farm 61,287.7 62,314.7 1.6 56.8 20,429.2 4,983 8.7¤) Based on wake reduced results, but no other losses included
*) Included in wake losses is influence from 6 WTG(s) in the neighborhood, which has status as "Reference WTGs", see separate report to identify these.
Calculated Annual Energy for each of 3 new WTGs with total 12.3 MW rated powerWTG type Power curve Annual Energy
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Result Wake Free rated diameter height loss mean
wind speed
[kW] [m] [m] [MWh/y] [%] [m/s]1 A Yes Siemens SWT-DD-142-4,100 4,100 142.0 109.0 EMD Mode 1 - Calculated - Std. 107dB rev1 - 6-2018 20,949.6 2.8 9.012 A Yes Siemens SWT-DD-142-4,100 4,100 142.0 109.0 EMD Mode 1 - Calculated - Std. 107dB rev1 - 6-2018 20,088.2 0.7 8.533 A Yes Siemens SWT-DD-142-4,100 4,100 142.0 109.0 EMD Mode 1 - Calculated - Std. 107dB rev1 - 6-2018 20,249.9 1.3 8.65
Annual Energy results do not include any losses apart from wake losses. Additional losses and uncertainty must be considered for an investmentdecision.
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description
[m]1 New 416,358 4,656,168 840.0 Siemens SWT-DD-142 4100 142.0 !O! hub: 109.0 m (TOT: 180.0 m) (40)2 New 416,443 4,655,527 794.7 Siemens SWT-DD-142 4100 142.0 !O! hub: 109.0 m (TOT: 180.0 m) (41)3 New 416,519 4,655,872 815.3 Siemens SWT-DD-142 4100 142.0 !O! hub: 109.0 m (TOT: 180.0 m) (42)
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Project:
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PARK - Reference WTGsCalculation: Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 05.09.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 109.0 m = 1.120 kg/m³ -> 91.5 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Existing WTG
Key results for height 109.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent roughnessdistribution
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 5,038 8.7 1.9
Calculated Annual Energy for reference WTGsSpecific results Specific results
Calculated GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speed Actual wind corrected Goodness Factorprod. without Free WTGs factor result hours @hub height energy
new WTGs[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s] [MWh/y] [%]98,795.5 99,245.5 0.6 54.4 16,465.9 4,773 9.0 0.0
Calculated Annual Energy for each of 6 reference WTGs with total 20.7 MW rated powerWTG type Power curve
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Calculated Goodness rated diameter height prod. Factor
without new WTGs
[kW] [m] [m] [MWh/y] [%]4 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,887.8 05 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 15,756.9 06 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,157.4 07 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,495.5 08 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,396.5 09 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 17,101.4 0
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]4 421,119 4,653,602 864.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (1)5 421,280 4,651,670 819.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (2)6 421,419 4,652,000 822.3 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (3)7 421,118 4,652,595 830.9 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (4)
To be continued on next page...
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PARK - Reference WTGsCalculation: Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 05.09.2019...continued from previous page
UTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]8 420,938 4,653,012 835.0 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (5)9 421,153 4,653,318 850.8 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (6)
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PARK - Production AnalysisCalculation: Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 05.09.2019WTG: All new WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.113 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 39.8 9.0 219.1 6,223.9 17,942.0 2,580.8 62.2 33.3 1,109.4 18,008.8 7,827.1 599.4 54,654.8+Increase due to hills [MWh] 31.9 4.0 277.3 1,044.4 2,070.4 390.0 89.4 13.7 714.3 2,138.3 767.6 118.6 7,659.9-Decrease due to wake losses [MWh] 8.4 0.7 0.0 0.0 489.0 355.6 25.6 2.3 0.0 0.0 68.1 77.3 1,026.9Resulting energy [MWh] 63.2 12.3 496.4 7,268.3 19,523.4 2,615.2 126.0 44.7 1,823.8 20,147.1 8,526.6 640.8 61,287.7Specific energy [kWh/m²] 1,290Specific energy [kWh/kW] 4,983Increase due to hills [%] 80.1 44.7 126.6 16.8 11.5 15.1 143.8 41.2 64.4 11.9 9.8 19.8 14.02Decrease due to wake losses [%] 11.7 5.4 0.0 0.0 2.4 12.0 16.9 4.9 0.0 0.0 0.8 10.8 1.65Utilization [%] 22.4 27.9 26.3 28.6 28.7 25.6 22.5 20.9 22.3 23.5 23.7 19.6 25.6Operational [Hours/year] 59 12 150 1,033 2,680 525 33 18 350 2,372 1,174 203 8,610Full Load Equivalent [Hours/year] 5 1 40 591 1,587 213 10 4 148 1,638 693 52 4,983
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PARK - Production AnalysisCalculation: Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 05.09.2019WTG: All existing WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.113 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 41.5 12.3 275.4 9,755.1 23,431.9 2,991.1 27.4 37.0 1,394.9 27,396.4 10,983.1 743.0 77,089.1+Increase due to hills [MWh] 20.3 2.5 282.0 3,780.8 6,429.0 532.1 55.1 12.1 889.4 7,721.2 2,324.0 108.0 22,156.4-Decrease due to wake losses [MWh] 10.8 1.9 3.5 0.0 0.0 332.0 9.5 5.6 11.6 0.0 157.9 75.4 608.1Resulting energy [MWh] 51.0 12.9 553.8 13,535.9 29,860.9 3,191.1 73.1 43.5 2,272.7 35,117.6 13,149.2 775.6 98,637.4Specific energy [kWh/m²] 1,529Specific energy [kWh/kW] 4,765Increase due to hills [%] 48.9 20.0 102.4 38.8 27.4 17.8 201.0 32.7 63.8 28.2 21.2 14.5 28.74Decrease due to wake losses [%] 17.5 13.0 0.6 0.0 0.0 9.4 11.5 11.4 0.5 0.0 1.2 8.9 0.61Utilization [%] 24.2 27.5 27.6 29.9 32.2 30.4 27.7 22.7 24.4 24.3 25.2 23.1 27.4Operational [Hours/year] 50 13 130 1,183 2,598 470 15 16 306 2,498 1,146 183 8,608Full Load Equivalent [Hours/year] 2 1 27 654 1,443 154 4 2 110 1,697 635 37 4,765
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PARK - Power Curve AnalysisCalculation: Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 05.09.2019WTG: 1 - Siemens SWT-DD-142 4100 142.0 !O!, Hub height: 109.0 mName: Mode 1 - Calculated - Std. 107dB rev1 - 6-2018Source: Manufacturer
Source/Date Created by Created Edited Stop wind speed Power control CT curve type Generator type Specific power[m/s] kW/m²
11/06/2018 EMD 03/05/2017 11/06/2018 26.0 Pitch User defined Variable 0.26Power Curve Rev. 1.Siemens Wind Power and its affiliates reserve the right to change the above specifications without prior notice.
HP curve comparison - Note: For standard air density
Vmean [m/s] 5 6 7 8 9 10HP value Pitch, variable speed (2013) [MWh] 7,800 11,593 15,135 18,207 20,747 22,744Siemens SWT-DD-142 4100 142.0 !O! Mode 1 - Calculated - Std. 107dB rev1 - 6-2018 [MWh] 8,049 11,796 15,276 18,260 20,655 22,439Check value [%] -3 -2 -1 0 0 1The table shows comparison between annual energy production calculated on basis of simplified "HP-curves" which assume that all WTGs performs quite similar - only specific power loading (kW/m^2)and single/dual speed or stall/pitch decides the calculated values. Productions are without wake losses.For further details, ask at the Danish Energy Agency for project report J.nr. 51171/00-0016 or see windPRO manual chapter 3.5.2.The method is refined in EMD report "20 Detailed Case Studies comparing Project Design Calculations and actual Energy Productions for Wind Energy Projects worldwide", jan 2003.Use the table to evaluate if the given power curve is reasonable - if the check value are lower than -5%, the power curve probably is too optimistic due to uncertainty in power curve measurement.
Power curveOriginal data, Air density: 1.225 kg/m³Wind speed Power Cp Wind speed Ct curve
[m/s] [kW] [m/s]2.0 0.0 0.00 2.0 0.003.0 40.0 0.15 3.0 0.814.0 245.0 0.39 4.0 0.815.0 556.0 0.46 5.0 0.816.0 992.0 0.47 6.0 0.827.0 1,583.0 0.48 7.0 0.848.0 2,308.0 0.46 8.0 0.839.0 3,056.0 0.43 9.0 0.7510.0 3,698.0 0.38 10.0 0.6411.0 4,020.0 0.31 11.0 0.5112.0 4,092.0 0.24 12.0 0.3813.0 4,099.0 0.19 13.0 0.2914.0 4,100.0 0.15 14.0 0.2215.0 4,100.0 0.13 15.0 0.1816.0 4,100.0 0.10 16.0 0.1517.0 4,100.0 0.09 17.0 0.1218.0 4,100.0 0.07 18.0 0.1019.0 4,100.0 0.06 19.0 0.0920.0 4,100.0 0.05 20.0 0.0821.0 3,553.0 0.04 21.0 0.0622.0 3,007.0 0.03 22.0 0.0523.0 2,460.0 0.02 23.0 0.0424.0 1,913.0 0.01 24.0 0.0325.0 1,367.0 0.01 25.0 0.0226.0 820.0 0.00 26.0 0.01
Power, Efficiency and energy vs. wind speedData used in calculation, Air density: 1.108 kg/m³ New windPRO method (adjustedIEC method, improved to match turbine control) <RECOMMENDED>Wind speed Power Cp Interval Energy Acc.Energy Relative
[m/s] [kW] [m/s] [MWh] [MWh] [%]1.0 0.0 0.00 0.50- 1.50 0.0 0.0 0.02.0 0.0 0.00 1.50- 2.50 2.0 2.0 0.03.0 35.9 0.15 2.50- 3.50 23.2 25.1 0.14.0 217.2 0.39 3.50- 4.50 107.7 132.9 0.65.0 503.3 0.46 4.50- 5.50 302.1 434.9 2.16.0 903.3 0.48 5.50- 6.50 642.7 1,077.7 5.17.0 1,442.8 0.48 6.50- 7.50 1,151.7 2,229.4 10.68.0 2,109.8 0.47 7.50- 8.50 1,786.0 4,015.4 19.29.0 2,811.2 0.44 8.50- 9.50 2,400.6 6,416.0 30.610.0 3,434.2 0.39 9.50-10.50 2,806.1 9,222.1 44.011.0 3,850.7 0.33 10.50-11.50 2,843.0 12,065.0 57.612.0 4,044.7 0.27 11.50-12.50 2,526.4 14,591.5 69.713.0 4,093.6 0.21 12.50-13.50 2,038.9 16,630.4 79.414.0 4,099.2 0.17 13.50-14.50 1,529.4 18,159.8 86.715.0 4,100.0 0.14 14.50-15.50 1,075.6 19,235.3 91.816.0 4,100.0 0.11 15.50-16.50 712.0 19,947.3 95.217.0 4,100.0 0.10 16.50-17.50 445.0 20,392.4 97.318.0 4,100.0 0.08 17.50-18.50 263.7 20,656.1 98.619.0 4,100.0 0.07 18.50-19.50 149.0 20,805.1 99.320.0 4,100.0 0.06 19.50-20.50 78.9 20,884.0 99.721.0 3,553.0 0.04 20.50-21.50 37.7 20,921.7 99.922.0 3,007.0 0.03 21.50-22.50 16.5 20,938.3 99.923.0 2,460.0 0.02 22.50-23.50 7.0 20,945.3 100.024.0 1,913.0 0.02 23.50-24.50 2.9 20,948.2 100.025.0 1,367.0 0.01 24.50-25.50 1.1 20,949.3 100.026.0 820.0 0.01 25.50-26.50 0.3 20,949.6 100.0
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PARK - TerrainCalculation: Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 05.09.2019Site Data: A - WAsP Gori II
Obstacles:
0 Obstacles used
Roughness:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\ROUGHNESSLINE_ONLINEDATA_1.wpoMin X: 398,219, Max X: 428,401, Min Y: 4,642,241, Max Y: 4,671,415, Width: 30,182 m, Height: 29,175 m
Orography:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\CONTOURLINE_ONLINEDATA_0.wpoMin X: 402,913, Max X: 423,154, Min Y: 4,646,647, Max Y: 4,666,294, Width: 20,242 m, Height: 19,648 m
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PARK - Wind Data AnalysisCalculation: Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 05.09.2019Wind data: A - WAsP Gori II; Hub height: 91.5Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.18 2.28 0.908 0.6 2.80 0.865 0.9 1 NNE 2.43 2.45 0.982 0.1 2.11 0.904 0.2 2 ENE 4.22 3.95 1.225 1.3 3.07 1.031 0.8 3 E 9.10 8.09 2.725 11.9 9.73 2.648 9.3 4 ESE 9.50 8.48 3.037 32.0 10.19 3.016 30.4 5 SSE 7.98 7.06 2.209 6.0 9.44 2.549 10.1 6 S 4.84 4.49 1.275 0.1 8.11 1.983 1.0 7 SSW 4.08 3.95 1.088 0.2 4.94 1.131 0.1 8 WSW 6.26 5.68 1.451 2.9 4.72 1.121 1.7 9 W 10.68 9.54 2.971 28.5 11.28 2.953 25.210 WNW 9.72 8.62 2.447 14.0 10.72 2.556 16.511 NNW 5.59 5.17 1.287 2.3 8.56 1.813 3.9All 9.46 8.40 2.525 100.0 10.17 2.524 100.0
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PARK - Wind Data AnalysisCalculation: Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 05.09.2019Wind data: A - WAsP Gori II; Hub height: 109.0Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.29 2.39 0.912 0.6 2.94 0.868 0.9 1 NNE 2.55 2.56 0.990 0.1 2.21 0.906 0.2 2 ENE 4.41 4.13 1.232 1.3 3.22 1.035 0.8 3 E 9.48 8.44 2.744 11.9 10.20 2.656 9.3 4 ESE 9.89 8.84 3.061 32.1 10.68 3.025 30.4 5 SSE 8.31 7.36 2.225 6.0 9.90 2.556 10.1 6 S 5.12 4.73 1.295 0.1 8.51 1.990 1.0 7 SSW 4.26 4.12 1.096 0.2 5.18 1.135 0.1 8 WSW 6.53 5.91 1.463 2.9 4.96 1.124 1.7 9 W 11.05 9.87 2.994 28.4 11.73 2.968 25.210 WNW 10.07 8.93 2.467 14.0 11.14 2.569 16.511 NNW 5.82 5.38 1.295 2.3 8.93 1.821 3.9All 9.83 8.72 2.545 100.0 10.62 2.537 100.0
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PARK - Park power curveCalculation: Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 05.09.2019
PowerWind Free Park N NNE ENE E ESE SSE S SSW WSW W WNW NNWspeed WTGs WTGs[m/s] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW]
0.5 0 0 0 0 0 0 0 0 0 0 0 0 0 01.5 0 0 0 0 0 0 0 0 0 0 0 0 0 02.5 50 47 39 45 50 50 45 40 38 45 50 50 49 393.5 356 330 236 300 356 356 314 258 224 300 356 356 341 2454.5 1,062 1,006 762 928 1,062 1,062 983 796 741 929 1,062 1,062 1,034 7755.5 2,084 1,988 1,565 1,854 2,084 2,084 1,949 1,628 1,531 1,854 2,084 2,084 2,036 1,5936.5 3,481 3,328 2,646 3,110 3,481 3,481 3,267 2,748 2,589 3,111 3,481 3,481 3,403 2,6897.5 5,294 5,074 4,065 4,750 5,294 5,294 4,995 4,210 3,983 4,751 5,294 5,294 5,183 4,1268.5 7,394 7,133 5,884 6,733 7,394 7,394 7,056 6,045 5,792 6,734 7,394 7,394 7,268 5,9539.5 9,447 9,199 7,977 8,813 9,447 9,447 9,140 8,102 7,899 8,813 9,447 9,447 9,336 8,026
10.5 11,141 10,960 10,045 10,674 11,141 11,141 10,928 10,115 9,989 10,672 11,141 11,141 11,064 10,06911.5 11,984 11,902 11,502 11,778 11,984 11,984 11,890 11,511 11,483 11,778 11,984 11,984 11,951 11,49612.5 12,231 12,215 12,134 12,190 12,231 12,231 12,215 12,124 12,131 12,189 12,231 12,231 12,225 12,12413.5 12,291 12,289 12,281 12,286 12,291 12,291 12,289 12,277 12,280 12,286 12,291 12,291 12,290 12,27814.5 12,299 12,299 12,298 12,299 12,299 12,299 12,299 12,298 12,298 12,298 12,299 12,299 12,299 12,29815.5 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,30016.5 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,30017.5 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,30018.5 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,30019.5 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,300 12,30020.5 11,480 11,514 11,678 11,565 11,480 11,480 11,525 11,661 11,689 11,565 11,480 11,480 11,495 11,67121.5 9,840 9,869 9,999 9,909 9,840 9,840 9,880 9,985 10,007 9,909 9,840 9,840 9,852 9,99322.5 8,201 8,225 8,327 8,255 8,201 8,201 8,236 8,316 8,334 8,255 8,201 8,201 8,210 8,32323.5 6,560 6,580 6,659 6,603 6,559 6,559 6,591 6,650 6,664 6,603 6,559 6,559 6,567 6,65624.5 4,920 4,937 4,994 4,952 4,920 4,920 4,948 4,988 4,999 4,952 4,920 4,920 4,926 4,99225.5 3,281 3,287 3,332 3,303 3,281 3,281 3,285 3,327 3,334 3,303 3,281 3,281 3,285 3,33026.5 0 0 0 0 0 0 0 0 0 0 0 0 0 027.5 0 0 0 0 0 0 0 0 0 0 0 0 0 028.5 0 0 0 0 0 0 0 0 0 0 0 0 0 029.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Description:The park power curve is similar to a WTG power curve, meaning that when a given wind speed appears in front of the park with same speed in the entire wind farm area(before influence from the park), the output from the park can be found in the park power curve. Another way to say this: The park power curve includes wake losses, butdo NOT include terrain given variations in the wind speed over the park area.Measuring a park power curve is not as simple as measuring a WTG power curve due to the fact that the park power curve depends on the wind direction and that the samewind speed normally will not appear for the entire park area at the same time (only in very flat non-complex terrain). The idea with this version of the park power curve isnot to use it for validation based on measurements. This would require at least 2 measurement masts at two sides of the park, unless only a few direction sectors should betested, AND non complex terrain (normally only useable off shore). Another park power curve version for complex terrain is available in windPRO.
The park power curve can be used for:1. Forecast systems, based on more rough (approximated) wind data, the park power curve would be an efficient way to make the connection from wind speed (and
direction) to power.2. Construction of duration curves, telling how often a given power output will appear, the park power curve can be used together with the average wind distribution
for the Wind farm area in hub height. The average wind distribution can eventually be obtained based on the Weibull parameters for each WTG position. These arefound at print menu: >Result to file< in the >Park result< which can be saved to file or copied to clipboard and pasted in Excel.
3. Calculation of wind energy index based on the PARK production (see below).4. Estimation of the expected PARK production for an existing wind farm based on wind measurements at minimum 2 measurement masts at two sides of wind farm.
The masts must be used for obtaining the free wind speed. The free wind speed is used in the simulation of expected energy production with the PARK powercurve. This procedure will only work suitable in non complex terrains. For complex terrain another park power curve calculation is available in windPRO(PPV-model).
Note:From the >Result to file< the >Wind Speeds Inside Wind farm< is also available. These can (e.g. via Excel) be used for extracting the wake induced reductions in measuredwind speed.
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PARK - WTG distancesCalculation: Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 05.09.2019
Scale 1:100,000New WTG Existing WTG
WTG distancesZ Nearest WTG Z Horizontal Distance in
distance rotor diameters[m] [m] [m]
1 840.0 3 815.3 337 2.42 794.7 3 815.3 353 2.53 815.3 1 840.0 337 2.44 864.2 9 850.8 286 2.45 819.2 6 822.3 358 3.16 822.3 5 819.2 358 3.17 830.9 8 835.0 455 3.98 835.0 9 850.8 374 3.29 850.8 4 864.2 286 2.4
Min 794.7 815.3 286 2.4Max 864.2 864.2 455 3.9
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PARK - Wind statistics infoCalculation: Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 05.09.2019Main data for wind statisticFile E:\work\WindPRO Data\Projects\Gori II\GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wwsName Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3))Country GeorgiaSource USERMast coordinates UTM (north)-WGS84 Zone: 38 East: 420,904 North: 4,653,454Created 12/07/2019Edited 12/07/2019Sectors 12WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Displacement height None
CommentsFrom MCP
Additional info for wind statisticBased on measurement height 80.0 mBase elevation for measurement mast 845.6 m
Long term correction informationMethod Matrix MCPSource data MERRA_basic_E44.002_N42.000 (3)Distance to source data 4.8 kmLong term period from 01/01/1989Long term period to 01/03/2016Concurrent period from 07/08/2013Concurrent period to 01/03/2016Concurrent data records 10255Concurrent record interval 60 minutesConcurrent data recovery 67.1 %
Number of years with long term data 27.2 yearsNumber of months with concurrent data 14.0 Months
Correlation test based on Concurrent monthly windindicesPower curve used for index Simple power curve truncated at: 14.0 m/sData availability demand for inclusion of month 60 %Number of months 20r^2 - wind index 0.7892r - wind index 0.8884s - wind index 6.1510
NoteTo get the most correct calculation results, wind statistics shall be calculated with the SAME model and model parameters, as currently chosen incalculation. For WAsP versions before 10.0, the model is unchanged, but thereafter more model changes affecting the wind statistic is seen. LikewiseWAsP CFD should always use WAsP CFD calculated wind statistics.
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PARK - RIX calculationCalculation: Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 05.09.2019Assumptions
Radius for calculation 3,500 mSteepness threshold 30.0 % / 17 °Directional weight Equally distributedRIX for wind statistic Calculated on windstatistic position. If not available Site data position is usedHeight contours used HCLAlfa 1.0No RIX correction for delta RIX in interval -5.0 % - 5.0 %
Reference sitesTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Site Data/Wind statistics Reference site RIX[%]
A 420,904 4,653,454 Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)) 1.8
WTG sitesUTM (north)-WGS84 Zone: 38
Links Easting Northing Z Reference site RIX WTG RIX Delta RIX (WTG site - Reference site) RIX correction[m] [%] [%] [%] [MWh/y]
1 A 416,358 4,656,168 840.0 1.8 0.0 -1.8 0.002 A 416,443 4,655,527 794.7 1.8 0.0 -1.8 0.003 A 416,519 4,655,872 815.3 1.8 0.0 -1.8 0.004 A 421,119 4,653,602 864.2 1.8 2.1 0.3 0.005 A 421,280 4,651,670 819.2 1.8 1.4 -0.4 0.006 A 421,419 4,652,000 822.3 1.8 1.3 -0.5 0.007 A 421,118 4,652,595 830.9 1.8 1.1 -0.7 0.008 A 420,938 4,653,012 835.0 1.8 1.3 -0.5 0.009 A 421,153 4,653,318 850.8 1.8 1.6 -0.2 0.00
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PARK - RIX calculationCalculation: Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 05.09.2019
Latest research /Risø/ show that the threshold in RIX calculation typically work best with 40% (new default), and that delta Rix within+/- 5% should not give corrections. Cross predictions based on more mast can fine tune the threshold, see Cross predictor tool inwindPRO Meteo Analyzer. In windPRO LOSS&&UNCERTAINTY module, RIX correction can be calculated automatically as a bias basedon most recent recommended correction formulas, which can be found in EWEC2006 && 08 papers on Rix from Risø, see extractbelow:
The main conclusion based on use of the RIX method is that if both reference site (measurement mast) and predicted site (WTG) areequally rugged (Delta RIX < 5%), very small calculation errors are expected.If reference site (measurement mast) is very rugged, e.g. RIX = 0.2 and predicted site (WTG) are less rugged (e.g. RIX = 0), Delta RIXwill be -0.2 and according to the graph, 30% too low wind speed prediction at WTG site could be expected. This could lead to around60%*) too low calculated energy production.If the reference site is less rugged, e.g. RIX = 0, and the predicted site (WTG) are very rugged (e.g. RIX = 0.2), Delta RIX will be +0.2,and according to the graph, 30% too high wind speed prediction at WTG site could be expected. This could lead to around 60%*) toohigh calculated energy production.*) Doubling of energy prediction error based on mean wind speed error is a rough conversion, which holds for wind speeds around 8m/s. At 6-7 m/s tripling is more right, while only 1.5 factors should be used for 9 m/s, see graph below based on a typical WTG.
Source: EWEC06 paper:IMPROVING WAsP PREDICTIONS IN (TOO) COMPLEX TERRAINNiels G. Mortensen, Anthony J. Bowen and Ioannis AntoniouWind Energy Department, Risø National Laboratory
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PARK - MapCalculation: Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 05.09.2019
0 500 1000 1500 2000 mMap: BigGameHunter , Print scale 1:40,000, Map center UTM (north)-WGS84 Zone: 38 East: 418,888 North: 4,653,919
New WTG Existing WTG
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PARK - Main ResultCalculation: Park Gori II 3wtg's V150-4.2 Hub=105m 05.09.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 105.0 m = 1.121 kg/m³ -> 91.5 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:12,500
New WTG Site Data
Key results for height 105.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent roughnessdistribution
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 4,896 8.6 1.9
Calculated Annual Energy for Wind FarmSpecific results¤)
WTG combination Result GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speedPARK Free WTGs factor result hours @hub height
[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s]Wind farm 64,733.2 65,805.7 1.6 58.6 21,577.7 5,138 8.6¤) Based on wake reduced results, but no other losses included
*) Included in wake losses is influence from 6 WTG(s) in the neighborhood, which has status as "Reference WTGs", see separate report to identify these.
Calculated Annual Energy for each of 3 new WTGs with total 12.6 MW rated powerWTG type Power curve Annual Energy
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Result Wake Free rated diameter height loss mean
wind speed
[kW] [m] [m] [MWh/y] [%] [m/s]1 A Yes VESTAS V150-4.2-4,200 4,200 150.0 105.0 EMD Level 0 - Calculated - Modes PO1 & PO1-0S - 27-07-2017 22,134.5 2.8 8.942 A Yes VESTAS V150-4.2-4,200 4,200 150.0 105.0 EMD Level 0 - Calculated - Modes PO1 & PO1-0S - 27-07-2017 21,217.6 0.7 8.453 A Yes VESTAS V150-4.2-4,200 4,200 150.0 105.0 EMD Level 0 - Calculated - Modes PO1 & PO1-0S - 27-07-2017 21,381.1 1.3 8.56
Annual Energy results do not include any losses apart from wake losses. Additional losses and uncertainty must be considered for an investmentdecision.
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description
[m]1 New 416,358 4,656,168 840.0 VESTAS V150-4.2 4200 150.0 !O! hub: 105.0 m (TOT: 180.0 m) (43)2 New 416,443 4,655,527 794.7 VESTAS V150-4.2 4200 150.0 !O! hub: 105.0 m (TOT: 180.0 m) (44)3 New 416,519 4,655,872 815.3 VESTAS V150-4.2 4200 150.0 !O! hub: 105.0 m (TOT: 180.0 m) (45)
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PARK - Reference WTGsCalculation: Park Gori II 3wtg's V150-4.2 Hub=105m 05.09.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 105.0 m = 1.121 kg/m³ -> 91.5 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Existing WTG
Key results for height 105.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent roughnessdistribution
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 4,896 8.6 1.9
Calculated Annual Energy for reference WTGsSpecific results Specific results
Calculated GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speed Actual wind corrected Goodness Factorprod. without Free WTGs factor result hours @hub height energy
new WTGs[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s] [MWh/y] [%]98,795.5 99,245.5 0.6 54.4 16,465.9 4,773 9.0 0.0
Calculated Annual Energy for each of 6 reference WTGs with total 20.7 MW rated powerWTG type Power curve
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Calculated Goodness rated diameter height prod. Factor
without new WTGs
[kW] [m] [m] [MWh/y] [%]4 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,887.8 05 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 15,756.9 06 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,157.4 07 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,495.5 08 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,396.5 09 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 17,101.4 0
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]4 421,119 4,653,602 864.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (1)5 421,280 4,651,670 819.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (2)6 421,419 4,652,000 822.3 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (3)7 421,118 4,652,595 830.9 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (4)
To be continued on next page...
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PARK - Reference WTGsCalculation: Park Gori II 3wtg's V150-4.2 Hub=105m 05.09.2019...continued from previous page
UTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]8 420,938 4,653,012 835.0 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (5)9 421,153 4,653,318 850.8 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (6)
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PARK - Production AnalysisCalculation: Park Gori II 3wtg's V150-4.2 Hub=105m 05.09.2019WTG: All new WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.114 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 41.6 9.4 230.2 6,591.7 18,972.7 2,726.9 66.0 34.9 1,176.4 19,021.5 8,261.4 630.9 57,763.8+Increase due to hills [MWh] 34.2 4.3 299.4 1,103.6 2,170.9 414.6 96.5 14.8 766.6 2,206.2 804.0 126.7 8,042.0-Decrease due to wake losses [MWh] 9.0 0.8 0.0 0.0 520.7 354.3 27.2 2.4 0.0 0.0 79.2 79.0 1,072.6Resulting energy [MWh] 66.8 13.0 529.6 7,695.3 20,623.0 2,787.2 135.4 47.3 1,943.0 21,227.7 8,986.3 678.6 64,733.2Specific energy [kWh/m²] 1,221Specific energy [kWh/kW] 5,138Increase due to hills [%] 82.3 46.2 130.1 16.7 11.4 15.2 146.2 42.3 65.2 11.6 9.7 20.1 13.92Decrease due to wake losses [%] 11.9 5.6 0.0 0.0 2.5 11.3 16.7 4.9 0.0 0.0 0.9 10.4 1.63Utilization [%] 21.7 27.2 25.6 28.0 28.1 25.2 22.1 20.4 21.7 22.8 23.0 19.2 24.9Operational [Hours/year] 59 12 151 1,034 2,676 524 34 18 352 2,369 1,173 203 8,605Full Load Equivalent [Hours/year] 5 1 42 611 1,637 221 11 4 154 1,685 713 54 5,138
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PARK - Production AnalysisCalculation: Park Gori II 3wtg's V150-4.2 Hub=105m 05.09.2019WTG: All existing WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.114 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 41.5 12.3 275.4 9,755.1 23,431.9 2,991.1 27.4 37.0 1,394.9 27,396.4 10,983.1 743.0 77,089.1+Increase due to hills [MWh] 20.3 2.5 282.0 3,780.8 6,429.0 532.1 55.1 12.1 889.4 7,721.2 2,324.0 108.0 22,156.4-Decrease due to wake losses [MWh] 10.8 1.9 3.5 0.0 0.0 332.0 9.5 5.6 11.6 0.0 154.1 75.4 604.3Resulting energy [MWh] 51.0 12.9 553.8 13,535.9 29,860.9 3,191.1 73.1 43.5 2,272.7 35,117.6 13,153.0 775.5 98,641.1Specific energy [kWh/m²] 1,529Specific energy [kWh/kW] 4,765Increase due to hills [%] 48.9 20.0 102.4 38.8 27.4 17.8 201.0 32.7 63.8 28.2 21.2 14.5 28.74Decrease due to wake losses [%] 17.5 13.0 0.6 0.0 0.0 9.4 11.5 11.4 0.5 0.0 1.2 8.9 0.61Utilization [%] 24.2 27.5 27.6 29.9 32.2 30.4 27.7 22.7 24.4 24.3 25.2 23.1 27.4Operational [Hours/year] 50 13 130 1,183 2,598 470 15 16 306 2,498 1,146 183 8,608Full Load Equivalent [Hours/year] 2 1 27 654 1,443 154 4 2 110 1,697 635 37 4,765
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PARK - Power Curve AnalysisCalculation: Park Gori II 3wtg's V150-4.2 Hub=105m 05.09.2019WTG: 1 - VESTAS V150-4.2 4200 150.0 !O!, Hub height: 105.0 mName: Level 0 - Calculated - Modes PO1 & PO1-0S - 27-07-2017Source: Manufacturer
Source/Date Created by Created Edited Stop wind speed Power control CT curve type Generator type Specific power[m/s] kW/m²
27/07/2017 EMD 10/08/2017 10/08/2017 22.5 Pitch User defined Variable 0.24Document no.: DMS 0067-7067 V04.IEC S (HH 105 & 155 m)DiBT WZ2(S) (HH 123 & 166 m)
HP curve comparison - Note: For standard air density
Vmean [m/s] 5 6 7 8 9 10HP value Pitch, variable speed (2013) [MWh] 8,530 12,511 16,163 19,289 21,849 23,843VESTAS V150-4.2 4200 150.0 !O! Level 0 - Calculated - Modes PO1 & PO1-0S - 27-07-2017 [MWh] 8,686 12,685 16,332 19,399 21,798 23,511Check value [%] -2 -1 -1 -1 0 1The table shows comparison between annual energy production calculated on basis of simplified "HP-curves" which assume that all WTGs performs quite similar - only specific power loading (kW/m^2)and single/dual speed or stall/pitch decides the calculated values. Productions are without wake losses.For further details, ask at the Danish Energy Agency for project report J.nr. 51171/00-0016 or see windPRO manual chapter 3.5.2.The method is refined in EMD report "20 Detailed Case Studies comparing Project Design Calculations and actual Energy Productions for Wind Energy Projects worldwide", jan 2003.Use the table to evaluate if the given power curve is reasonable - if the check value are lower than -5%, the power curve probably is too optimistic due to uncertainty in power curve measurement.
Power curveOriginal data, Air density: 1.225 kg/m³Wind speed Power Cp Wind speed Ct curve
[m/s] [kW] [m/s]3.0 78.0 0.27 3.0 1.003.5 172.0 0.37 3.5 0.924.0 287.0 0.41 4.0 0.864.5 426.0 0.43 4.5 0.855.0 601.0 0.44 5.0 0.845.5 814.0 0.45 5.5 0.836.0 1,069.0 0.46 6.0 0.826.5 1,367.0 0.46 6.5 0.827.0 1,717.0 0.46 7.0 0.817.5 2,110.0 0.46 7.5 0.798.0 2,546.0 0.46 8.0 0.788.5 3,002.0 0.45 8.5 0.749.0 3,428.0 0.43 9.0 0.689.5 3,773.0 0.41 9.5 0.6110.0 4,012.0 0.37 10.0 0.5310.5 4,131.0 0.33 10.5 0.4611.0 4,186.0 0.29 11.0 0.3911.5 4,198.0 0.26 11.5 0.3312.0 4,200.0 0.22 12.0 0.2912.5 4,200.0 0.20 12.5 0.2513.0 4,200.0 0.18 13.0 0.2213.5 4,200.0 0.16 13.5 0.2014.0 4,200.0 0.14 14.0 0.1814.5 4,200.0 0.13 14.5 0.1615.0 4,200.0 0.11 15.0 0.1415.5 4,200.0 0.10 15.5 0.1316.0 4,200.0 0.09 16.0 0.1216.5 4,200.0 0.09 16.5 0.1117.0 4,200.0 0.08 17.0 0.1017.5 4,200.0 0.07 17.5 0.0918.0 4,200.0 0.07 18.0 0.0818.5 4,200.0 0.06 18.5 0.0819.0 4,200.0 0.06 19.0 0.0719.5 4,200.0 0.05 19.5 0.0720.0 4,200.0 0.05 20.0 0.0620.5 4,200.0 0.05 20.5 0.0621.0 4,200.0 0.04 21.0 0.0521.5 4,200.0 0.04 21.5 0.0522.0 4,200.0 0.04 22.0 0.0522.5 4,200.0 0.03 22.5 0.05
Power, Efficiency and energy vs. wind speedData used in calculation, Air density: 1.109 kg/m³ New windPRO method (adjustedIEC method, improved to match turbine control) <RECOMMENDED>Wind speed Power Cp Interval Energy Acc.Energy Relative
[m/s] [kW] [m/s] [MWh] [MWh] [%]1.0 0.0 0.00 0.50- 1.50 0.0 0.0 0.02.0 0.0 0.00 1.50- 2.50 0.0 0.0 0.03.0 59.0 0.22 2.50- 3.50 27.3 27.3 0.14.0 255.9 0.41 3.50- 4.50 123.1 150.4 0.75.0 541.9 0.44 4.50- 5.50 328.6 479.0 2.26.0 965.7 0.46 5.50- 6.50 697.1 1,176.1 5.37.0 1,551.6 0.46 6.50- 7.50 1,262.6 2,438.8 11.08.0 2,309.3 0.46 7.50- 8.50 1,992.0 4,430.8 20.09.0 3,152.5 0.44 8.50- 9.50 2,705.4 7,136.2 32.210.0 3,818.4 0.39 9.50-10.50 3,103.1 10,239.4 46.311.0 4,126.2 0.32 10.50-11.50 3,021.6 13,261.0 59.912.0 4,194.2 0.25 11.50-12.50 2,596.9 15,857.9 71.613.0 4,200.0 0.20 12.50-13.50 2,054.0 17,911.9 80.914.0 4,200.0 0.16 13.50-14.50 1,519.9 19,431.8 87.815.0 4,200.0 0.13 14.50-15.50 1,056.2 20,488.0 92.616.0 4,200.0 0.10 15.50-16.50 690.8 21,178.8 95.717.0 4,200.0 0.09 16.50-17.50 426.5 21,605.3 97.618.0 4,200.0 0.07 17.50-18.50 249.6 21,854.9 98.719.0 4,200.0 0.06 18.50-19.50 139.3 21,994.3 99.420.0 4,200.0 0.05 19.50-20.50 74.7 22,069.0 99.721.0 4,200.0 0.05 20.50-21.50 38.9 22,107.9 99.922.0 4,200.0 0.04 21.50-22.50 19.9 22,127.8 100.023.0 0.0 0.00 22.50-23.50 6.7 22,134.5 100.0
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PARK - TerrainCalculation: Park Gori II 3wtg's V150-4.2 Hub=105m 05.09.2019Site Data: A - WAsP Gori II
Obstacles:
0 Obstacles used
Roughness:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\ROUGHNESSLINE_ONLINEDATA_1.wpoMin X: 398,219, Max X: 428,401, Min Y: 4,642,241, Max Y: 4,671,415, Width: 30,182 m, Height: 29,175 m
Orography:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\CONTOURLINE_ONLINEDATA_0.wpoMin X: 402,913, Max X: 423,154, Min Y: 4,646,647, Max Y: 4,666,294, Width: 20,242 m, Height: 19,648 m
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PARK - Wind Data AnalysisCalculation: Park Gori II 3wtg's V150-4.2 Hub=105m 05.09.2019Wind data: A - WAsP Gori II; Hub height: 91.5Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.18 2.28 0.908 0.6 2.80 0.865 0.9 1 NNE 2.43 2.45 0.982 0.1 2.11 0.904 0.2 2 ENE 4.22 3.95 1.225 1.3 3.07 1.031 0.8 3 E 9.10 8.09 2.725 11.9 9.73 2.648 9.3 4 ESE 9.50 8.48 3.037 32.0 10.19 3.016 30.4 5 SSE 7.98 7.06 2.209 6.0 9.44 2.549 10.1 6 S 4.84 4.49 1.275 0.1 8.11 1.983 1.0 7 SSW 4.08 3.95 1.088 0.2 4.94 1.131 0.1 8 WSW 6.26 5.68 1.451 2.9 4.72 1.121 1.7 9 W 10.68 9.54 2.971 28.5 11.28 2.953 25.210 WNW 9.72 8.62 2.447 14.0 10.72 2.556 16.511 NNW 5.59 5.17 1.287 2.3 8.56 1.813 3.9All 9.46 8.40 2.525 100.0 10.17 2.524 100.0
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PARK - Wind Data AnalysisCalculation: Park Gori II 3wtg's V150-4.2 Hub=105m 05.09.2019Wind data: A - WAsP Gori II; Hub height: 105.0Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.27 2.36 0.916 0.6 2.91 0.869 0.9 1 NNE 2.52 2.53 0.990 0.1 2.19 0.908 0.2 2 ENE 4.37 4.08 1.236 1.3 3.19 1.037 0.8 3 E 9.39 8.35 2.752 11.9 10.08 2.662 9.3 4 ESE 9.79 8.75 3.068 32.1 10.55 3.032 30.4 5 SSE 8.22 7.28 2.229 6.0 9.78 2.562 10.1 6 S 5.04 4.66 1.291 0.1 8.41 1.994 1.0 7 SSW 4.22 4.08 1.096 0.2 5.12 1.137 0.1 8 WSW 6.47 5.86 1.463 2.9 4.90 1.126 1.7 9 W 10.96 9.79 2.998 28.4 11.62 2.973 25.210 WNW 9.99 8.86 2.471 14.0 11.04 2.574 16.511 NNW 5.77 5.33 1.295 2.3 8.84 1.825 3.9All 9.73 8.64 2.549 100.0 10.51 2.540 100.0
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PARK - Park power curveCalculation: Park Gori II 3wtg's V150-4.2 Hub=105m 05.09.2019
PowerWind Free Park N NNE ENE E ESE SSE S SSW WSW W WNW NNWspeed WTGs WTGs[m/s] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW]
0.5 0 0 0 0 0 0 0 0 0 0 0 0 0 01.5 0 0 0 0 0 0 0 0 0 0 0 0 0 02.5 0 0 0 0 0 0 0 0 0 0 0 0 0 03.5 451 417 265 365 451 451 404 302 247 365 451 451 429 2844.5 1,154 1,095 819 1,004 1,154 1,154 1,075 863 796 1,004 1,154 1,154 1,120 8395.5 2,210 2,106 1,639 1,953 2,210 2,210 2,065 1,720 1,598 1,953 2,210 2,210 2,149 1,6776.5 3,717 3,550 2,805 3,306 3,717 3,717 3,485 2,935 2,738 3,307 3,717 3,717 3,620 2,8667.5 5,746 5,501 4,405 5,144 5,746 5,746 5,403 4,593 4,309 5,145 5,746 5,746 5,605 4,4958.5 8,219 7,908 6,497 7,453 8,219 8,219 7,791 6,725 6,382 7,454 8,219 8,219 8,047 6,6089.5 10,589 10,325 9,058 9,929 10,589 10,589 10,248 9,217 8,977 9,929 10,589 10,589 10,462 9,140
10.5 12,072 11,944 11,299 11,749 12,072 12,072 11,919 11,340 11,266 11,747 12,072 12,072 12,020 11,31911.5 12,533 12,505 12,363 12,463 12,533 12,533 12,502 12,363 12,356 12,462 12,533 12,533 12,523 12,36112.5 12,598 12,596 12,586 12,593 12,598 12,598 12,597 12,585 12,586 12,593 12,598 12,598 12,597 12,58513.5 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,60014.5 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,60015.5 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,60016.5 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,60017.5 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,60018.5 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,60019.5 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,60020.5 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,60021.5 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,60022.5 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,600 12,60023.5 0 0 0 0 0 0 0 0 0 0 0 0 0 024.5 0 0 0 0 0 0 0 0 0 0 0 0 0 025.5 0 0 0 0 0 0 0 0 0 0 0 0 0 026.5 0 0 0 0 0 0 0 0 0 0 0 0 0 027.5 0 0 0 0 0 0 0 0 0 0 0 0 0 028.5 0 0 0 0 0 0 0 0 0 0 0 0 0 029.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Description:The park power curve is similar to a WTG power curve, meaning that when a given wind speed appears in front of the park with same speed in the entire wind farm area(before influence from the park), the output from the park can be found in the park power curve. Another way to say this: The park power curve includes wake losses, butdo NOT include terrain given variations in the wind speed over the park area.Measuring a park power curve is not as simple as measuring a WTG power curve due to the fact that the park power curve depends on the wind direction and that the samewind speed normally will not appear for the entire park area at the same time (only in very flat non-complex terrain). The idea with this version of the park power curve isnot to use it for validation based on measurements. This would require at least 2 measurement masts at two sides of the park, unless only a few direction sectors should betested, AND non complex terrain (normally only useable off shore). Another park power curve version for complex terrain is available in windPRO.
The park power curve can be used for:1. Forecast systems, based on more rough (approximated) wind data, the park power curve would be an efficient way to make the connection from wind speed (and
direction) to power.2. Construction of duration curves, telling how often a given power output will appear, the park power curve can be used together with the average wind distribution
for the Wind farm area in hub height. The average wind distribution can eventually be obtained based on the Weibull parameters for each WTG position. These arefound at print menu: >Result to file< in the >Park result< which can be saved to file or copied to clipboard and pasted in Excel.
3. Calculation of wind energy index based on the PARK production (see below).4. Estimation of the expected PARK production for an existing wind farm based on wind measurements at minimum 2 measurement masts at two sides of wind farm.
The masts must be used for obtaining the free wind speed. The free wind speed is used in the simulation of expected energy production with the PARK powercurve. This procedure will only work suitable in non complex terrains. For complex terrain another park power curve calculation is available in windPRO(PPV-model).
Note:From the >Result to file< the >Wind Speeds Inside Wind farm< is also available. These can (e.g. via Excel) be used for extracting the wake induced reductions in measuredwind speed.
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Project:
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PARK - WTG distancesCalculation: Park Gori II 3wtg's V150-4.2 Hub=105m 05.09.2019
Scale 1:100,000New WTG Existing WTG
WTG distancesZ Nearest WTG Z Horizontal Distance in
distance rotor diameters[m] [m] [m]
1 840.0 3 815.3 337 2.22 794.7 3 815.3 353 2.43 815.3 1 840.0 337 2.24 864.2 9 850.8 286 2.45 819.2 6 822.3 358 3.16 822.3 5 819.2 358 3.17 830.9 8 835.0 455 3.98 835.0 9 850.8 374 3.29 850.8 4 864.2 286 2.4
Min 794.7 815.3 286 2.2Max 864.2 864.2 455 3.9
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PARK - Wind statistics infoCalculation: Park Gori II 3wtg's V150-4.2 Hub=105m 05.09.2019Main data for wind statisticFile E:\work\WindPRO Data\Projects\Gori II\GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wwsName Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3))Country GeorgiaSource USERMast coordinates UTM (north)-WGS84 Zone: 38 East: 420,904 North: 4,653,454Created 12/07/2019Edited 12/07/2019Sectors 12WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Displacement height None
CommentsFrom MCP
Additional info for wind statisticBased on measurement height 80.0 mBase elevation for measurement mast 845.6 m
Long term correction informationMethod Matrix MCPSource data MERRA_basic_E44.002_N42.000 (3)Distance to source data 4.8 kmLong term period from 01/01/1989Long term period to 01/03/2016Concurrent period from 07/08/2013Concurrent period to 01/03/2016Concurrent data records 10255Concurrent record interval 60 minutesConcurrent data recovery 67.1 %
Number of years with long term data 27.2 yearsNumber of months with concurrent data 14.0 Months
Correlation test based on Concurrent monthly windindicesPower curve used for index Simple power curve truncated at: 14.0 m/sData availability demand for inclusion of month 60 %Number of months 20r^2 - wind index 0.7892r - wind index 0.8884s - wind index 6.1510
NoteTo get the most correct calculation results, wind statistics shall be calculated with the SAME model and model parameters, as currently chosen incalculation. For WAsP versions before 10.0, the model is unchanged, but thereafter more model changes affecting the wind statistic is seen. LikewiseWAsP CFD should always use WAsP CFD calculated wind statistics.
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PARK - RIX calculationCalculation: Park Gori II 3wtg's V150-4.2 Hub=105m 05.09.2019Assumptions
Radius for calculation 3,500 mSteepness threshold 30.0 % / 17 °Directional weight Equally distributedRIX for wind statistic Calculated on windstatistic position. If not available Site data position is usedHeight contours used HCLAlfa 1.0No RIX correction for delta RIX in interval -5.0 % - 5.0 %
Reference sitesTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Site Data/Wind statistics Reference site RIX[%]
A 420,904 4,653,454 Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)) 1.8
WTG sitesUTM (north)-WGS84 Zone: 38
Links Easting Northing Z Reference site RIX WTG RIX Delta RIX (WTG site - Reference site) RIX correction[m] [%] [%] [%] [MWh/y]
1 A 416,358 4,656,168 840.0 1.8 0.0 -1.8 0.002 A 416,443 4,655,527 794.7 1.8 0.0 -1.8 0.003 A 416,519 4,655,872 815.3 1.8 0.0 -1.8 0.004 A 421,119 4,653,602 864.2 1.8 2.1 0.3 0.005 A 421,280 4,651,670 819.2 1.8 1.4 -0.4 0.006 A 421,419 4,652,000 822.3 1.8 1.3 -0.5 0.007 A 421,118 4,652,595 830.9 1.8 1.1 -0.7 0.008 A 420,938 4,653,012 835.0 1.8 1.3 -0.5 0.009 A 421,153 4,653,318 850.8 1.8 1.6 -0.2 0.00
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PARK - RIX calculationCalculation: Park Gori II 3wtg's V150-4.2 Hub=105m 05.09.2019
Latest research /Risø/ show that the threshold in RIX calculation typically work best with 40% (new default), and that delta Rix within+/- 5% should not give corrections. Cross predictions based on more mast can fine tune the threshold, see Cross predictor tool inwindPRO Meteo Analyzer. In windPRO LOSS&&UNCERTAINTY module, RIX correction can be calculated automatically as a bias basedon most recent recommended correction formulas, which can be found in EWEC2006 && 08 papers on Rix from Risø, see extractbelow:
The main conclusion based on use of the RIX method is that if both reference site (measurement mast) and predicted site (WTG) areequally rugged (Delta RIX < 5%), very small calculation errors are expected.If reference site (measurement mast) is very rugged, e.g. RIX = 0.2 and predicted site (WTG) are less rugged (e.g. RIX = 0), Delta RIXwill be -0.2 and according to the graph, 30% too low wind speed prediction at WTG site could be expected. This could lead to around60%*) too low calculated energy production.If the reference site is less rugged, e.g. RIX = 0, and the predicted site (WTG) are very rugged (e.g. RIX = 0.2), Delta RIX will be +0.2,and according to the graph, 30% too high wind speed prediction at WTG site could be expected. This could lead to around 60%*) toohigh calculated energy production.*) Doubling of energy prediction error based on mean wind speed error is a rough conversion, which holds for wind speeds around 8m/s. At 6-7 m/s tripling is more right, while only 1.5 factors should be used for 9 m/s, see graph below based on a typical WTG.
Source: EWEC06 paper:IMPROVING WAsP PREDICTIONS IN (TOO) COMPLEX TERRAINNiels G. Mortensen, Anthony J. Bowen and Ioannis AntoniouWind Energy Department, Risø National Laboratory
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PARK - MapCalculation: Park Gori II 3wtg's V150-4.2 Hub=105m 05.09.2019
0 500 1000 1500 2000 mMap: BigGameHunter , Print scale 1:40,000, Map center UTM (north)-WGS84 Zone: 38 East: 418,888 North: 4,653,919
New WTG Existing WTG
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PARK - Main ResultCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 100.0 m = 1.121 kg/m³ -> 91.5 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Site Data
Key results for height 100.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent roughnessdistribution
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 4,715 8.5 1.9
Calculated Annual Energy for Wind FarmSpecific results¤)
WTG combination Result GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speedPARK Free WTGs factor result hours @hub height
[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s]Wind farm 46,781.5 47,410.3 1.3 50.8 6,683.1 4,455 8.4¤) Based on wake reduced results, but no other losses included
*) Included in wake losses is influence from 6 WTG(s) in the neighborhood, which has status as "Reference WTGs", see separate report to identify these.
Calculated Annual Energy for each of 7 new WTGs with total 10.5 MW rated powerWTG type Power curve Annual Energy
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Result Wake Free rated diameter height loss mean
wind speed
[kW] [m] [m] [MWh/y] [%] [m/s]1 A No GE WIND ENERGY GE 1.5 xle-1,500 1,500 82.5 100.0 EMD Level 0 - Calculated - Standard operation - 2006 7,106.9 1.8 8.842 A No GE WIND ENERGY GE 1.5 xle-1,500 1,500 82.5 100.0 EMD Level 0 - Calculated - Standard operation - 2006 6,726.0 1.0 8.443 A No GE WIND ENERGY GE 1.5 xle-1,500 1,500 82.5 100.0 EMD Level 0 - Calculated - Standard operation - 2006 6,636.8 0.8 8.334 A No GE WIND ENERGY GE 1.5 xle-1,500 1,500 82.5 100.0 EMD Level 0 - Calculated - Standard operation - 2006 6,603.6 0.9 8.315 A No GE WIND ENERGY GE 1.5 xle-1,500 1,500 82.5 100.0 EMD Level 0 - Calculated - Standard operation - 2006 6,619.5 1.9 8.386 A No GE WIND ENERGY GE 1.5 xle-1,500 1,500 82.5 100.0 EMD Level 0 - Calculated - Standard operation - 2006 6,449.1 2.1 8.237 A No GE WIND ENERGY GE 1.5 xle-1,500 1,500 82.5 100.0 EMD Level 0 - Calculated - Standard operation - 2006 6,639.6 0.8 8.31
Annual Energy results do not include any losses apart from wake losses. Additional losses and uncertainty must be considered for an investmentdecision.
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description
[m]1 New 416,369 4,656,160 840.0 GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! hub: 100.0 m (TOT: 141.3 m) (53)2 New 416,538 4,655,876 815.6 GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! hub: 100.0 m (TOT: 141.3 m) (54)3 New 416,458 4,655,542 795.9 GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! hub: 100.0 m (TOT: 141.3 m) (55)
To be continued on next page...
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PARK - Main ResultCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019...continued from previous page
UTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description
[m]4 New 416,316 4,655,191 783.2 GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! hub: 100.0 m (TOT: 141.3 m) (56)5 New 416,206 4,654,821 777.5 GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! hub: 100.0 m (TOT: 141.3 m) (57)6 New 415,663 4,654,651 751.8 GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! hub: 100.0 m (TOT: 141.3 m) (58)7 New 415,800 4,654,359 749.6 GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! hub: 100.0 m (TOT: 141.3 m) (59)
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Project:
Gori II
PARK - Reference WTGsCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 100.0 m = 1.121 kg/m³ -> 91.5 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Existing WTG
Key results for height 100.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent roughnessdistribution
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 4,715 8.5 1.9
Calculated Annual Energy for reference WTGsSpecific results Specific results
Calculated GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speed Actual wind corrected Goodness Factorprod. without Free WTGs factor result hours @hub height energy
new WTGs[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s] [MWh/y] [%]98,795.5 99,245.5 0.6 54.4 16,465.9 4,773 9.0 0.0
Calculated Annual Energy for each of 6 reference WTGs with total 20.7 MW rated powerWTG type Power curve
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Calculated Goodness rated diameter height prod. Factor
without new WTGs
[kW] [m] [m] [MWh/y] [%]8 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,887.8 09 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 15,756.9 0
10 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,157.4 011 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,495.5 012 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,396.5 013 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 17,101.4 0
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]8 421,119 4,653,602 864.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (1)9 421,280 4,651,670 819.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (2)
10 421,419 4,652,000 822.3 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (3)11 421,118 4,652,595 830.9 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (4)
To be continued on next page...
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Project:
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PARK - Reference WTGsCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019...continued from previous page
UTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]12 420,938 4,653,012 835.0 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (5)13 421,153 4,653,318 850.8 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (6)
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Project:
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PARK - Production AnalysisCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019WTG: All new WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.119 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 25.4 6.0 139.9 4,844.3 13,609.4 1,860.9 33.0 22.2 742.5 14,371.4 6,060.3 422.0 42,137.3+Increase due to hills [MWh] 14.1 1.7 142.3 811.6 1,407.7 190.8 43.4 6.7 395.8 1,701.5 505.2 52.2 5,272.9-Decrease due to wake losses [MWh] 3.0 0.9 5.2 48.6 289.8 149.2 7.8 2.9 23.8 62.3 3.5 31.8 628.8Resulting energy [MWh] 36.5 6.7 277.1 5,607.3 14,727.3 1,902.5 68.6 26.0 1,114.4 16,010.7 6,562.0 442.3 46,781.5Specific energy [kWh/m²] 1,250Specific energy [kWh/kW] 4,455Increase due to hills [%] 55.4 27.9 101.7 16.8 10.3 10.3 131.7 30.1 53.3 11.8 8.3 12.4 12.51Decrease due to wake losses [%] 7.5 12.1 1.8 0.9 1.9 7.3 10.2 10.2 2.1 0.4 0.1 6.7 1.33Utilization [%] 23.9 25.5 26.5 30.2 31.1 28.9 25.4 20.6 23.2 25.6 25.9 21.6 27.7Operational [Hours/year] 55 12 133 1,041 2,636 505 25 17 312 2,375 1,157 193 8,461Full Load Equivalent [Hours/year] 3 1 26 534 1,403 181 7 2 106 1,525 625 42 4,455
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Project:
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PARK - Production AnalysisCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019WTG: All existing WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.119 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 41.5 12.3 275.4 9,755.1 23,431.9 2,991.1 27.4 37.0 1,394.9 27,396.4 10,983.1 743.0 77,089.1+Increase due to hills [MWh] 20.3 2.5 282.0 3,780.8 6,429.0 532.1 55.1 12.1 889.4 7,721.2 2,324.0 108.0 22,156.4-Decrease due to wake losses [MWh] 10.8 1.9 3.5 0.0 0.0 332.0 9.5 5.6 11.6 38.8 104.6 75.2 593.4Resulting energy [MWh] 51.0 12.9 553.8 13,535.9 29,860.9 3,191.1 73.1 43.5 2,272.7 35,078.8 13,202.6 775.7 98,652.1Specific energy [kWh/m²] 1,529Specific energy [kWh/kW] 4,766Increase due to hills [%] 48.9 20.0 102.4 38.8 27.4 17.8 201.0 32.7 63.8 28.2 21.2 14.5 28.74Decrease due to wake losses [%] 17.5 13.0 0.6 0.0 0.0 9.4 11.5 11.4 0.5 0.1 0.8 8.8 0.60Utilization [%] 24.2 27.5 27.6 29.9 32.2 30.4 27.7 22.7 24.4 24.3 25.3 23.1 27.4Operational [Hours/year] 50 13 130 1,183 2,598 470 15 16 306 2,498 1,146 183 8,608Full Load Equivalent [Hours/year] 2 1 27 654 1,443 154 4 2 110 1,695 638 37 4,766
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PARK - Power Curve AnalysisCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019WTG: 1 - GE WIND ENERGY GE 1.5 xle 1500 82.5 !O!, Hub height: 100.0 mName: Level 0 - Calculated - Standard operation - 2006Source: Manufacturer
Source/Date Created by Created Edited Stop wind speed Power control CT curve type Generator type Specific power[m/s] kW/m²
31/12/2006 EMD 21/11/2000 10/01/2007 20.0 Pitch User defined Variable 0.28Based on document 1.5xle_PCD_allComp_xxxxxxxx.ENxx.03.pdf. Special adapted power curves for air densities 1.02-1.20 kg/m³ available frommanufacturer. When using this PC, WindPRO's standard algorithm for air density adaptation will be used.
HP curve comparison - Note: For standard air density
Vmean [m/s] 5 6 7 8 9 10HP value Pitch, variable speed (2013) [MWh] 2,675 4,025 5,308 6,436 7,378 8,125GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! Level 0 - Calculated - Standard operation - 2006 [MWh] 2,544 3,882 5,147 6,211 7,007 7,524Check value [%] 5 4 3 4 5 8The table shows comparison between annual energy production calculated on basis of simplified "HP-curves" which assume that all WTGs performs quite similar - only specific power loading (kW/m^2)and single/dual speed or stall/pitch decides the calculated values. Productions are without wake losses.For further details, ask at the Danish Energy Agency for project report J.nr. 51171/00-0016 or see windPRO manual chapter 3.5.2.The method is refined in EMD report "20 Detailed Case Studies comparing Project Design Calculations and actual Energy Productions for Wind Energy Projects worldwide", jan 2003.Use the table to evaluate if the given power curve is reasonable - if the check value are lower than -5%, the power curve probably is too optimistic due to uncertainty in power curve measurement.
Power curveOriginal data, Air density: 1.225 kg/m³Wind speed Power Cp Wind speed Ct curve
[m/s] [kW] [m/s]2.5 0.0 0.00 3.0 1.213.0 3.0 0.03 4.0 0.993.5 26.0 0.19 5.0 0.904.0 60.0 0.29 6.0 0.894.5 104.0 0.35 7.0 0.885.0 158.0 0.39 8.0 0.825.5 219.0 0.40 9.0 0.736.0 294.0 0.42 10.0 0.606.5 382.0 0.42 11.0 0.477.0 486.0 0.43 12.0 0.357.5 607.0 0.44 13.0 0.278.0 739.0 0.44 14.0 0.228.5 891.0 0.44 15.0 0.189.0 1,033.0 0.43 16.0 0.149.5 1,175.0 0.42 17.0 0.1210.0 1,290.0 0.39 18.0 0.1010.5 1,379.0 0.36 19.0 0.0911.0 1,442.0 0.33 20.0 0.0711.5 1,472.0 0.30 21.0 0.0712.0 1,491.0 0.26 22.0 0.0612.5 1,497.0 0.23 23.0 0.0513.0 1,500.0 0.21 24.0 0.0513.5 1,500.0 0.19 25.0 0.0414.0 1,500.0 0.1714.5 1,500.0 0.1515.0 1,500.0 0.1415.5 1,500.0 0.1216.0 1,500.0 0.1116.5 1,500.0 0.1017.0 1,500.0 0.0917.5 1,500.0 0.0918.0 1,500.0 0.0818.5 1,500.0 0.0719.0 1,500.0 0.0719.5 1,500.0 0.0620.0 1,500.0 0.06
Power, Efficiency and energy vs. wind speedData used in calculation, Air density: 1.109 kg/m³ New windPRO method (adjustedIEC method, improved to match turbine control) <RECOMMENDED>
Wind speed Power Cp Interval Energy Acc.Energy Relative[m/s] [kW] [m/s] [MWh] [MWh] [%]1.0 0.0 0.00 0.50- 1.50 0.0 0.0 0.02.0 0.0 0.00 1.50- 2.50 0.0 0.0 0.03.0 2.4 0.03 2.50- 3.50 3.9 3.9 0.14.0 50.9 0.27 3.50- 4.50 27.3 31.2 0.45.0 139.9 0.38 4.50- 5.50 87.8 118.9 1.76.0 263.8 0.41 5.50- 6.50 197.6 316.6 4.57.0 437.1 0.43 6.50- 7.50 368.2 684.7 9.68.0 667.7 0.44 7.50- 8.50 593.8 1,278.6 18.09.0 941.6 0.44 8.50- 9.50 827.7 2,106.2 29.610.0 1,197.2 0.40 9.50-10.50 987.2 3,093.5 43.511.0 1,375.8 0.35 10.50-11.50 1,008.2 4,101.7 57.712.0 1,462.7 0.29 11.50-12.50 896.2 4,997.9 70.313.0 1,493.7 0.23 12.50-13.50 714.4 5,712.3 80.414.0 1,500.0 0.18 13.50-14.50 524.3 6,236.6 87.815.0 1,500.0 0.15 14.50-15.50 358.9 6,595.5 92.816.0 1,500.0 0.12 15.50-16.50 230.9 6,826.4 96.117.0 1,500.0 0.10 16.50-17.50 140.1 6,966.5 98.018.0 1,500.0 0.09 17.50-18.50 80.7 7,047.2 99.219.0 1,500.0 0.07 18.50-19.50 44.3 7,091.5 99.820.0 1,500.0 0.06 19.50-20.50 15.4 7,106.9 100.0
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Project:
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PARK - TerrainCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019Site Data: A - WAsP Gori II
Obstacles:
0 Obstacles used
Roughness:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\ROUGHNESSLINE_ONLINEDATA_1.wpoMin X: 398,219, Max X: 428,401, Min Y: 4,642,241, Max Y: 4,671,415, Width: 30,182 m, Height: 29,175 m
Orography:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\CONTOURLINE_ONLINEDATA_0.wpoMin X: 402,913, Max X: 423,154, Min Y: 4,646,647, Max Y: 4,666,294, Width: 20,242 m, Height: 19,648 m
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Project:
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PARK - Wind Data AnalysisCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019Wind data: A - WAsP Gori II; Hub height: 91.5Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.18 2.28 0.908 0.6 2.80 0.865 0.9 1 NNE 2.43 2.45 0.982 0.1 2.11 0.904 0.2 2 ENE 4.22 3.95 1.225 1.3 3.07 1.031 0.8 3 E 9.10 8.09 2.725 11.9 9.73 2.648 9.3 4 ESE 9.50 8.48 3.037 32.0 10.19 3.016 30.4 5 SSE 7.98 7.06 2.209 6.0 9.44 2.549 10.1 6 S 4.84 4.49 1.275 0.1 8.11 1.983 1.0 7 SSW 4.08 3.95 1.088 0.2 4.94 1.131 0.1 8 WSW 6.26 5.68 1.451 2.9 4.72 1.121 1.7 9 W 10.68 9.54 2.971 28.5 11.28 2.953 25.210 WNW 9.72 8.62 2.447 14.0 10.72 2.556 16.511 NNW 5.59 5.17 1.287 2.3 8.56 1.813 3.9All 9.46 8.40 2.525 100.0 10.17 2.524 100.0
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Project:
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PARK - Wind Data AnalysisCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019Wind data: A - WAsP Gori II; Hub height: 100.0Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.23 2.33 0.916 0.6 2.87 0.870 0.9 1 NNE 2.49 2.49 0.994 0.1 2.16 0.910 0.2 2 ENE 4.31 4.03 1.240 1.3 3.14 1.040 0.8 3 E 9.26 8.24 2.764 11.9 9.92 2.670 9.3 4 ESE 9.66 8.63 3.080 32.1 10.39 3.040 30.4 5 SSE 8.11 7.19 2.236 6.0 9.63 2.570 10.1 6 S 4.94 4.57 1.291 0.1 8.28 2.000 1.0 7 SSW 4.17 4.02 1.100 0.2 5.05 1.140 0.1 8 WSW 6.39 5.78 1.471 2.9 4.83 1.130 1.7 9 W 10.84 9.68 3.006 28.4 11.47 2.980 25.210 WNW 9.87 8.76 2.479 14.0 10.90 2.580 16.511 NNW 5.70 5.26 1.299 2.3 8.72 1.830 3.9All 9.61 8.54 2.553 100.0 10.36 2.545 100.0
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Project:
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PARK - Wind Data AnalysisCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019Wind data: A - WAsP Gori II; Hub height: 91.5Site coordinatesUTM (north)-WGS84 Zone: 38East: 420,904 North: 4,653,454Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.25 2.36 0.908 0.6 2.80 0.865 0.9 1 NNE 2.47 2.50 0.967 0.1 2.11 0.904 0.2 2 ENE 4.45 4.17 1.217 1.3 3.07 1.031 0.8 3 E 9.60 8.55 2.744 12.6 9.73 2.648 9.3 4 ESE 9.73 8.69 3.037 31.3 10.19 3.016 30.4 5 SSE 8.03 7.11 2.197 5.8 9.44 2.549 10.1 6 S 5.16 4.76 1.314 0.1 8.11 1.983 1.0 7 SSW 4.11 3.99 1.080 0.2 4.94 1.131 0.1 8 WSW 6.94 6.25 1.521 3.1 4.72 1.121 1.7 9 W 11.29 10.08 2.963 28.6 11.28 2.953 25.210 WNW 10.25 9.09 2.447 13.9 10.72 2.556 16.511 NNW 5.86 5.40 1.307 2.3 8.56 1.813 3.9All 9.88 8.77 2.510 100.0 10.17 2.524 100.0
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Project:
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PARK - Park power curveCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019
PowerWind Free Park N NNE ENE E ESE SSE S SSW WSW W WNW NNWspeed WTGs WTGs[m/s] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW]
0.5 0 0 0 0 0 0 0 0 0 0 0 0 0 01.5 0 0 0 0 0 0 0 0 0 0 0 0 0 02.5 0 0 0 0 0 0 0 0 0 0 0 0 0 03.5 146 134 102 87 126 139 131 109 103 85 125 141 145 1084.5 640 607 511 456 590 621 604 511 512 455 588 627 638 5095.5 1,383 1,330 1,178 1,081 1,307 1,353 1,324 1,174 1,179 1,079 1,304 1,364 1,381 1,1726.5 2,419 2,334 2,099 1,954 2,297 2,370 2,319 2,091 2,100 1,950 2,292 2,388 2,415 2,0877.5 3,844 3,717 3,373 3,158 3,667 3,772 3,690 3,365 3,374 3,154 3,659 3,799 3,838 3,3598.5 5,645 5,481 5,048 4,753 5,429 5,553 5,437 5,042 5,048 4,750 5,420 5,591 5,638 5,0359.5 7,546 7,389 6,961 6,630 7,351 7,460 7,344 6,952 6,960 6,630 7,343 7,497 7,541 6,947
10.5 9,111 9,008 8,703 8,428 8,986 9,057 8,986 8,697 8,699 8,427 8,981 9,079 9,107 8,69511.5 10,042 9,995 9,853 9,706 9,987 10,018 9,985 9,854 9,849 9,705 9,985 10,028 10,040 9,85312.5 10,387 10,376 10,339 10,297 10,374 10,381 10,374 10,339 10,337 10,295 10,373 10,384 10,387 10,33813.5 10,489 10,487 10,481 10,473 10,486 10,488 10,487 10,480 10,480 10,473 10,486 10,488 10,489 10,48014.5 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,499 10,500 10,500 10,500 10,50015.5 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,50016.5 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,50017.5 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,50018.5 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,50019.5 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,500 10,50020.5 0 0 0 0 0 0 0 0 0 0 0 0 0 021.5 0 0 0 0 0 0 0 0 0 0 0 0 0 022.5 0 0 0 0 0 0 0 0 0 0 0 0 0 023.5 0 0 0 0 0 0 0 0 0 0 0 0 0 024.5 0 0 0 0 0 0 0 0 0 0 0 0 0 025.5 0 0 0 0 0 0 0 0 0 0 0 0 0 026.5 0 0 0 0 0 0 0 0 0 0 0 0 0 027.5 0 0 0 0 0 0 0 0 0 0 0 0 0 028.5 0 0 0 0 0 0 0 0 0 0 0 0 0 029.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Description:The park power curve is similar to a WTG power curve, meaning that when a given wind speed appears in front of the park with same speed in the entire wind farm area(before influence from the park), the output from the park can be found in the park power curve. Another way to say this: The park power curve includes wake losses, butdo NOT include terrain given variations in the wind speed over the park area.Measuring a park power curve is not as simple as measuring a WTG power curve due to the fact that the park power curve depends on the wind direction and that the samewind speed normally will not appear for the entire park area at the same time (only in very flat non-complex terrain). The idea with this version of the park power curve isnot to use it for validation based on measurements. This would require at least 2 measurement masts at two sides of the park, unless only a few direction sectors should betested, AND non complex terrain (normally only useable off shore). Another park power curve version for complex terrain is available in windPRO.
The park power curve can be used for:1. Forecast systems, based on more rough (approximated) wind data, the park power curve would be an efficient way to make the connection from wind speed (and
direction) to power.2. Construction of duration curves, telling how often a given power output will appear, the park power curve can be used together with the average wind distribution
for the Wind farm area in hub height. The average wind distribution can eventually be obtained based on the Weibull parameters for each WTG position. These arefound at print menu: >Result to file< in the >Park result< which can be saved to file or copied to clipboard and pasted in Excel.
3. Calculation of wind energy index based on the PARK production (see below).4. Estimation of the expected PARK production for an existing wind farm based on wind measurements at minimum 2 measurement masts at two sides of wind farm.
The masts must be used for obtaining the free wind speed. The free wind speed is used in the simulation of expected energy production with the PARK powercurve. This procedure will only work suitable in non complex terrains. For complex terrain another park power curve calculation is available in windPRO(PPV-model).
Note:From the >Result to file< the >Wind Speeds Inside Wind farm< is also available. These can (e.g. via Excel) be used for extracting the wake induced reductions in measuredwind speed.
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PARK - WTG distancesCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019
Scale 1:100,000New WTG Existing WTG
WTG distancesZ Nearest WTG Z Horizontal Distance in
distance rotor diameters[m] [m] [m]
1 840.0 2 815.6 330 4.02 815.6 1 840.0 330 4.03 795.9 2 815.6 344 4.24 783.2 3 795.9 379 4.65 777.5 4 783.2 385 4.76 751.8 7 749.6 322 3.97 749.6 6 751.8 322 3.98 864.2 13 850.8 286 2.49 819.2 10 822.3 358 3.1
10 822.3 9 819.2 358 3.111 830.9 12 835.0 455 3.912 835.0 13 850.8 374 3.213 850.8 8 864.2 286 2.4
Min 749.6 749.6 286 2.4Max 864.2 864.2 455 4.7
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PARK - Wind statistics infoCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019Main data for wind statisticFile E:\work\WindPRO Data\Projects\Gori II\GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wwsName Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3))Country GeorgiaSource USERMast coordinates UTM (north)-WGS84 Zone: 38 East: 420,904 North: 4,653,454Created 12/07/2019Edited 12/07/2019Sectors 12WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Displacement height None
CommentsFrom MCP
Additional info for wind statisticBased on measurement height 80.0 mBase elevation for measurement mast 845.6 m
Long term correction informationMethod Matrix MCPSource data MERRA_basic_E44.002_N42.000 (3)Distance to source data 4.8 kmLong term period from 01/01/1989Long term period to 01/03/2016Concurrent period from 07/08/2013Concurrent period to 01/03/2016Concurrent data records 10255Concurrent record interval 60 minutesConcurrent data recovery 67.1 %
Number of years with long term data 27.2 yearsNumber of months with concurrent data 14.0 Months
Correlation test based on Concurrent monthly windindicesPower curve used for index Simple power curve truncated at: 14.0 m/sData availability demand for inclusion of month 60 %Number of months 20r^2 - wind index 0.7892r - wind index 0.8884s - wind index 6.1510
NoteTo get the most correct calculation results, wind statistics shall be calculated with the SAME model and model parameters, as currently chosen incalculation. For WAsP versions before 10.0, the model is unchanged, but thereafter more model changes affecting the wind statistic is seen. LikewiseWAsP CFD should always use WAsP CFD calculated wind statistics.
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PARK - RIX calculationCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019Assumptions
Radius for calculation 3,500 mSteepness threshold 30.0 % / 17 °Directional weight Equally distributedRIX for wind statistic Calculated on windstatistic position. If not available Site data position is usedHeight contours used HCLAlfa 1.0No RIX correction for delta RIX in interval -5.0 % - 5.0 %
Reference sitesTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Site Data/Wind statistics Reference site RIX[%]
A 420,904 4,653,454 Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)) 1.8
WTG sitesUTM (north)-WGS84 Zone: 38
Links Easting Northing Z Reference site RIX WTG RIX Delta RIX (WTG site - Reference site) RIX correction[m] [%] [%] [%] [MWh/y]
1 A 416,369 4,656,160 840.0 1.8 0.0 -1.8 0.002 A 416,538 4,655,876 815.6 1.8 0.0 -1.8 0.003 A 416,458 4,655,542 795.9 1.8 0.0 -1.8 0.004 A 416,316 4,655,191 783.2 1.8 0.0 -1.8 0.005 A 416,206 4,654,821 777.5 1.8 0.0 -1.8 0.006 A 415,663 4,654,651 751.8 1.8 0.0 -1.8 0.007 A 415,800 4,654,359 749.6 1.8 0.0 -1.8 0.008 A 421,119 4,653,602 864.2 1.8 2.1 0.3 0.009 A 421,280 4,651,670 819.2 1.8 1.4 -0.4 0.00
10 A 421,419 4,652,000 822.3 1.8 1.3 -0.5 0.0011 A 421,118 4,652,595 830.9 1.8 1.1 -0.7 0.0012 A 420,938 4,653,012 835.0 1.8 1.3 -0.5 0.0013 A 421,153 4,653,318 850.8 1.8 1.6 -0.2 0.00
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PARK - RIX calculationCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019
Latest research /Risø/ show that the threshold in RIX calculation typically work best with 40% (new default), and that delta Rix within+/- 5% should not give corrections. Cross predictions based on more mast can fine tune the threshold, see Cross predictor tool inwindPRO Meteo Analyzer. In windPRO LOSS&&UNCERTAINTY module, RIX correction can be calculated automatically as a bias basedon most recent recommended correction formulas, which can be found in EWEC2006 && 08 papers on Rix from Risø, see extractbelow:
The main conclusion based on use of the RIX method is that if both reference site (measurement mast) and predicted site (WTG) areequally rugged (Delta RIX < 5%), very small calculation errors are expected.If reference site (measurement mast) is very rugged, e.g. RIX = 0.2 and predicted site (WTG) are less rugged (e.g. RIX = 0), Delta RIXwill be -0.2 and according to the graph, 30% too low wind speed prediction at WTG site could be expected. This could lead to around60%*) too low calculated energy production.If the reference site is less rugged, e.g. RIX = 0, and the predicted site (WTG) are very rugged (e.g. RIX = 0.2), Delta RIX will be +0.2,and according to the graph, 30% too high wind speed prediction at WTG site could be expected. This could lead to around 60%*) toohigh calculated energy production.*) Doubling of energy prediction error based on mean wind speed error is a rough conversion, which holds for wind speeds around 8m/s. At 6-7 m/s tripling is more right, while only 1.5 factors should be used for 9 m/s, see graph below based on a typical WTG.
Source: EWEC06 paper:IMPROVING WAsP PREDICTIONS IN (TOO) COMPLEX TERRAINNiels G. Mortensen, Anthony J. Bowen and Ioannis AntoniouWind Energy Department, Risø National Laboratory
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PARK - MapCalculation: Park Gori II - SH 7wtg's GE1.5xle Hub=100m 05.09.2019
0 500 1000 1500 2000 mMap: BigGameHunter , Print scale 1:40,000, Map center UTM (north)-WGS84 Zone: 38 East: 418,541 North: 4,653,915
New WTG Existing WTG
ANNEX 3
20 MW LONG VERSION CALCULATED ANNUAL ENERGY AND WTG SITING
Annex 3
20 MW Range Wind Farm
Calculated Annual Energy and Wind Turbine Generator Siting Wind Turbine Generator Options:
General Electric 4wtg's GE158-5.3 700 Hub=120.9m
Enercon 4wtg's E-147 EP5-5MW Hub=126m
Nordex 5wtg's N149-4.5 Hub=105m
Siemens Gamesa 5wtg's SWT-DD-142-4.1 Hub=109m
Vestas 5wtg's V150-4.2 Hub=105m
General Electric 9wtg's GE1.5xle Hub=100m Second Hand
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PARK - Main ResultCalculation: Park Gori II 4wtg's GE158-5.3 700 Hub=120.9m 17.07.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 121.0 m = 1.119 kg/m³ -> 91.4 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:25,000
New WTG Site Data
Key results for height 121.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent distribution roughness
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 5,449 8.9 2.0
Calculated Annual Energy for Wind FarmSpecific results¤)
WTG combination Result GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speedPARK Free WTGs factor result hours @hub height
[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s]Wind farm 105,887.1 107,404.2 1.4 57.0 26,471.8 4,995 8.9¤) Based on wake reduced results, but no other losses included
*) Included in wake losses is influence from 6 WTG(s) in the neighborhood, which has status as "Reference WTGs", see separate report to identify these.
Calculated Annual Energy for each of 4 new WTGs with total 21.2 MW rated powerWTG type Power curve Annual Energy
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Result Wake Free rated diameter height loss mean
wind speed
[kW] [m] [m] [MWh/y] [%] [m/s]1 A Yes GE WIND ENERGY 5.3-158 Thrust 700-5,300 5,300 158.0 120.9 EMD 5.3-158 NO Med TI 27,111.7 2.9 9.222 A Yes GE WIND ENERGY 5.3-158 Thrust 700-5,300 5,300 158.0 120.9 EMD 5.3-158 NO Med TI 26,169.7 0.7 8.773 A Yes GE WIND ENERGY 5.3-158 Thrust 700-5,300 5,300 158.0 120.9 EMD 5.3-158 NO Med TI 26,327.0 1.4 8.884 A Yes GE WIND ENERGY 5.3-158 Thrust 700-5,300 5,300 158.0 120.9 EMD 5.3-158 NO Med TI 26,278.7 0.6 8.79
Annual Energy results do not include any losses apart from wake losses. Additional losses and uncertainty must be considered for an investmentdecision.
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description
[m]1 New 416,358 4,656,168 840.0 GE WIND ENERGY 5.3-158 Thrust 700 5300 158.0 !O! hub: 120.9 m (TOT: 199.9 m) (27)2 New 416,443 4,655,527 794.7 GE WIND ENERGY 5.3-158 Thrust 700 5300 158.0 !O! hub: 120.9 m (TOT: 199.9 m) (28)3 New 416,519 4,655,872 815.3 GE WIND ENERGY 5.3-158 Thrust 700 5300 158.0 !O! hub: 120.9 m (TOT: 199.9 m) (29)4 New 416,173 4,654,811 775.6 GE WIND ENERGY 5.3-158 Thrust 700 5300 158.0 !O! hub: 120.9 m (TOT: 199.9 m) (30)
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PARK - Reference WTGsCalculation: Park Gori II 4wtg's GE158-5.3 700 Hub=120.9m 17.07.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 121.0 m = 1.119 kg/m³ -> 91.4 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Existing WTGKey results for height 121.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent distribution roughness
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 5,449 8.9 2.0
Calculated Annual Energy for reference WTGsSpecific results Specific results
Calculated GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speed Actual wind Goodness Factorprod. without Free WTGs factor result hours @hub height corrected
new WTGs energy[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s] [MWh/y] [%]98,795.5 99,245.5 0.7 54.4 16,465.9 4,773 9.0 0.0
Calculated Annual Energy for each of 6 reference WTGs with total 20.7 MW rated powerWTG type Power curve
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Calculated Goodness rated diameter height prod. Factor
without new WTGs
[kW] [m] [m] [MWh/y] [%]5 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,887.8 06 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 15,756.9 07 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,157.4 08 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,495.5 09 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,396.5 0
10 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 17,101.4 0
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]5 421,119 4,653,602 864.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (1)6 421,280 4,651,670 819.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (2)7 421,419 4,652,000 822.3 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (3)8 421,118 4,652,595 830.9 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (4)9 420,938 4,653,012 835.0 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (5)
10 421,153 4,653,318 850.8 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (6)
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PARK - Production AnalysisCalculation: Park Gori II 4wtg's GE158-5.3 700 Hub=120.9m 17.07.2019WTG: All new WTGs, Air density varies with WTG position 1.107 kg/m³ - 1.114 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 68.4 16.0 381.5 11,175.4 31,543.5 4,449.8 98.5 56.6 1,877.7 31,693.5 13,580.4 1,026.7 95,968.1+Increase due to hills [MWh] 43.8 5.2 400.2 1,647.3 3,005.0 504.6 124.3 18.7 1,032.9 3,378.7 1,122.3 153.0 11,436.1-Decrease due to wake losses [MWh] 14.3 2.1 0.0 13.8 798.3 431.9 37.7 6.1 0.0 0.0 113.7 99.3 1,517.1Resulting energy [MWh] 98.0 19.2 781.7 12,808.9 33,750.2 4,522.6 185.2 69.2 2,910.6 35,072.2 14,589.0 1,080.3 105,887.1Specific energy [kWh/m²] 1,350Specific energy [kWh/kW] 4,995Increase due to hills [%] 64.0 32.6 104.9 14.7 9.5 11.3 126.2 33.0 55.0 10.7 8.3 14.9 11.92Decrease due to wake losses [%] 12.7 9.7 0.0 0.1 2.3 8.7 16.9 8.0 0.0 0.0 0.8 8.4 1.41Utilization [%] 22.1 26.2 25.6 27.6 28.0 26.1 21.9 20.0 21.9 23.1 23.4 20.0 25.1Operational [Hours/year] 57 12 144 1,049 2,681 518 29 18 335 2,396 1,174 200 8,614Full Load Equivalent [Hours/year] 5 1 37 604 1,592 213 9 3 137 1,654 688 51 4,995
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PARK - Production AnalysisCalculation: Park Gori II 4wtg's GE158-5.3 700 Hub=120.9m 17.07.2019WTG: All existing WTGs, Air density varies with WTG position 1.107 kg/m³ - 1.114 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 41.5 12.3 275.4 9,755.1 23,431.9 2,991.1 27.4 37.0 1,394.9 27,396.4 10,983.1 743.0 77,089.1+Increase due to hills [MWh] 20.3 2.5 282.0 3,780.8 6,429.0 532.1 55.1 12.1 889.4 7,721.2 2,324.0 108.0 22,156.4-Decrease due to wake losses [MWh] 10.8 1.9 3.5 0.0 0.0 332.0 9.5 5.6 11.6 32.6 237.8 75.4 720.7Resulting energy [MWh] 51.0 12.9 553.8 13,535.9 29,860.9 3,191.1 73.1 43.5 2,272.7 35,085.0 13,069.3 775.5 98,524.8Specific energy [kWh/m²] 1,527Specific energy [kWh/kW] 4,760Increase due to hills [%] 48.9 20.0 102.4 38.8 27.4 17.8 201.0 32.7 63.8 28.2 21.2 14.5 28.74Decrease due to wake losses [%] 17.5 13.0 0.6 0.0 0.0 9.4 11.5 11.4 0.5 0.1 1.8 8.9 0.73Utilization [%] 24.2 27.5 27.6 29.9 32.2 30.4 27.7 22.7 24.4 24.3 25.1 23.1 27.3Operational [Hours/year] 50 13 130 1,183 2,598 470 15 16 306 2,498 1,146 183 8,608Full Load Equivalent [Hours/year] 2 1 27 654 1,443 154 4 2 110 1,695 631 37 4,760
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PARK - Power Curve AnalysisCalculation: Park Gori II 4wtg's GE158-5.3 700 Hub=120.9m 17.07.2019WTG: 1 - GE WIND ENERGY 5.3-158 Thrust 700 5300 158.0 !O!, Hub height: 120.9 m
Name: 5.3-158 NO Med TI Source: Power_Curve-NO_5.3-158-xxHz_106dB_Thrust700_Eng-Rev03_EN_r02
Source/Date Created by Created Edited Stop wind speed Power control CT curve type Generator type Specific power[m/s] kW/m²
05/12/2018 EMD 29/06/2017 06/02/2019 25.0 Pitch User defined Variable 0.27Power_Curve-NO_5.3-158-xxHz_106dB_Thrust700_Eng-Rev03_EN_r02
HP curve comparison - Note: For standard air density
Vmean [m/s] 5 6 7 8 9 10HP value Pitch, variable speed (2013) [MWh] 9,739 14,569 19,123 23,102 26,409 29,022GE WIND ENERGY 5.3-158 Thrust 700 5300 158.0 !O! 5.3-158 NO Med TI [MWh] 9,828 14,614 19,129 23,067 26,311 28,823Check value [%] -1 0 0 0 0 1The table shows comparison between annual energy production calculated on basis of simplified "HP-curves" which assume that all WTGs performs quite similar - only specific power loading(kW/m^2) and single/dual speed or stall/pitch decides the calculated values. Productions are without wake losses.For further details, ask at the Danish Energy Agency for project report J.nr. 51171/00-0016 or see windPRO manual chapter 3.5.2.The method is refined in EMD report "20 Detailed Case Studies comparing Project Design Calculations and actual Energy Productions for Wind Energy Projects worldwide", jan 2003.Use the table to evaluate if the given power curve is reasonable - if the check value are lower than -5%, the power curve probably is too optimistic due to uncertainty in power curvemeasurement.
Power curveOriginal data, Air density: 1.225 kg/m³Wind speed Power Cp Wind speed Ct curve
[m/s] [kW] [m/s]3.0 90.0 0.28 3.0 0.913.5 188.0 0.37 3.5 0.894.0 314.0 0.41 4.0 0.884.5 471.0 0.43 4.5 0.855.0 664.0 0.44 5.0 0.835.5 902.0 0.45 5.5 0.826.0 1,182.0 0.46 6.0 0.826.5 1,513.0 0.46 6.5 0.817.0 1,896.0 0.46 7.0 0.817.5 2,337.0 0.46 7.5 0.808.0 2,819.0 0.46 8.0 0.788.5 3,322.0 0.45 8.5 0.749.0 3,809.0 0.44 9.0 0.689.5 4,264.0 0.41 9.5 0.6210.0 4,651.0 0.39 10.0 0.5610.5 4,939.0 0.36 10.5 0.5011.0 5,160.0 0.32 11.0 0.4411.5 5,266.0 0.29 11.5 0.3912.0 5,300.0 0.26 12.0 0.3412.5 5,300.0 0.23 12.5 0.3013.0 5,300.0 0.20 13.0 0.2613.5 5,300.0 0.18 13.5 0.2314.0 5,300.0 0.16 14.0 0.2114.5 5,300.0 0.14 14.5 0.1815.0 5,300.0 0.13 15.0 0.1715.5 5,300.0 0.12 15.5 0.1516.0 5,300.0 0.11 16.0 0.1416.5 5,300.0 0.10 16.5 0.1317.0 5,300.0 0.09 17.0 0.1117.5 5,300.0 0.08 17.5 0.1118.0 5,300.0 0.08 18.0 0.1018.5 5,300.0 0.07 18.5 0.0919.0 5,300.0 0.06 19.0 0.0819.5 5,300.0 0.06 19.5 0.0820.0 5,300.0 0.06 20.0 0.0720.5 5,300.0 0.05 20.5 0.0721.0 5,256.0 0.05 21.0 0.0621.5 5,197.0 0.04 21.5 0.0622.0 5,065.0 0.04 22.0 0.0522.5 4,884.0 0.04 22.5 0.0523.0 4,676.0 0.03 23.0 0.0423.5 4,520.0 0.03 23.5 0.0424.0 4,392.0 0.03 24.0 0.0424.5 4,301.0 0.02 24.5 0.0325.0 4,229.0 0.02 25.0 0.03
Power, Efficiency and energy vs. wind speedData used in calculation, Air density: 1.107 kg/m³ New windPRO method(adjusted IEC method, improved to match turbine control) <RECOMMENDED>Wind speed Power Cp Interval Energy Acc.Energy Relative
[m/s] [kW] [m/s] [MWh] [MWh] [%]1.0 0.0 0.00 0.50- 1.50 0.0 0.0 0.02.0 0.0 0.00 1.50- 2.50 0.0 0.0 0.03.0 69.8 0.24 2.50- 3.50 28.2 28.2 0.14.0 279.5 0.40 3.50- 4.50 126.9 155.1 0.65.0 597.8 0.44 4.50- 5.50 339.4 494.6 1.86.0 1,066.8 0.46 5.50- 6.50 721.9 1,216.4 4.57.0 1,712.2 0.46 6.50- 7.50 1,314.4 2,530.9 9.38.0 2,553.3 0.46 7.50- 8.50 2,095.2 4,626.0 17.19.0 3,489.4 0.44 8.50- 9.50 2,902.0 7,528.0 27.810.0 4,333.0 0.40 9.50-10.50 3,477.4 11,005.4 40.611.0 4,923.3 0.34 10.50-11.50 3,627.2 14,632.6 54.012.0 5,230.6 0.28 11.50-12.50 3,338.4 17,971.0 66.313.0 5,300.0 0.22 12.50-13.50 2,774.0 20,745.0 76.514.0 5,300.0 0.18 13.50-14.50 2,135.7 22,880.7 84.415.0 5,300.0 0.14 14.50-15.50 1,547.4 24,428.0 90.116.0 5,300.0 0.12 15.50-16.50 1,057.8 25,485.9 94.017.0 5,300.0 0.10 16.50-17.50 683.7 26,169.6 96.518.0 5,300.0 0.08 17.50-18.50 419.1 26,588.6 98.119.0 5,300.0 0.07 18.50-19.50 244.7 26,833.3 99.020.0 5,300.0 0.06 19.50-20.50 136.9 26,970.2 99.521.0 5,300.0 0.05 20.50-21.50 73.5 27,043.7 99.722.0 5,065.0 0.04 21.50-22.50 37.5 27,081.2 99.923.0 4,676.0 0.04 22.50-23.50 18.4 27,099.6 100.024.0 4,392.0 0.03 23.50-24.50 9.1 27,108.6 100.025.0 4,229.0 0.02 24.50-25.50 3.1 27,111.7 100.0
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PARK - TerrainCalculation: Park Gori II 4wtg's GE158-5.3 700 Hub=120.9m 17.07.2019 Site Data: A - WAsP Gori II
Obstacles:
0 Obstacles used
Roughness:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\ROUGHNESSLINE_ONLINEDATA_1.wpoMin X: 398,219, Max X: 428,401, Min Y: 4,642,241, Max Y: 4,671,415, Width: 30,182 m, Height: 29,175 m
Orography:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\CONTOURLINE_ONLINEDATA_0.wpoMin X: 402,913, Max X: 423,154, Min Y: 4,646,647, Max Y: 4,666,294, Width: 20,242 m, Height: 19,648 m
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PARK - Wind Data AnalysisCalculation: Park Gori II 4wtg's GE158-5.3 700 Hub=120.9m 17.07.2019 Wind data: A - WAsP Gori II; Hub height: 91.5Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.18 2.28 0.908 0.6 2.80 0.865 0.9 1 NNE 2.43 2.45 0.982 0.1 2.11 0.904 0.2 2 ENE 4.22 3.95 1.225 1.3 3.07 1.031 0.8 3 E 9.10 8.09 2.725 11.9 9.73 2.648 9.3 4 ESE 9.50 8.48 3.037 32.0 10.19 3.016 30.4 5 SSE 7.98 7.06 2.209 6.0 9.44 2.549 10.1 6 S 4.84 4.49 1.275 0.1 8.11 1.983 1.0 7 SSW 4.08 3.95 1.088 0.2 4.94 1.131 0.1 8 WSW 6.26 5.68 1.451 2.9 4.72 1.121 1.7 9 W 10.68 9.54 2.971 28.5 11.28 2.953 25.210 WNW 9.72 8.62 2.447 14.0 10.72 2.556 16.511 NNW 5.59 5.17 1.287 2.3 8.56 1.813 3.9All 9.46 8.40 2.525 100.0 10.17 2.524 100.0
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PARK - Wind Data AnalysisCalculation: Park Gori II 4wtg's GE158-5.3 700 Hub=120.9m 17.07.2019Wind data: A - WAsP Gori II; Hub height: 121.0Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.36 2.47 0.908 0.6 3.03 0.864 0.9 1 NNE 2.62 2.64 0.982 0.1 2.28 0.902 0.2 2 ENE 4.56 4.27 1.229 1.3 3.32 1.029 0.8 3 E 9.76 8.68 2.725 11.9 10.54 2.640 9.3 4 ESE 10.17 9.09 3.041 32.1 11.03 3.007 30.4 5 SSE 8.54 7.56 2.205 6.1 10.24 2.540 10.1 6 S 5.34 4.93 1.299 0.1 8.79 1.978 1.0 7 SSW 4.38 4.24 1.088 0.2 5.33 1.129 0.1 8 WSW 6.72 6.09 1.455 2.9 5.11 1.116 1.7 9 W 11.31 10.09 2.979 28.4 12.04 2.952 25.210 WNW 10.31 9.15 2.455 14.0 11.44 2.555 16.511 NNW 5.97 5.52 1.287 2.3 9.17 1.811 3.9All 10.08 8.95 2.533 100.0 10.94 2.527 100.0
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PARK - Park power curveCalculation: Park Gori II 4wtg's GE158-5.3 700 Hub=120.9m 17.07.2019
PowerWind Free Park N NNE ENE E ESE SSE S SSW WSW W WNW NNWspeed WTGs WTGs[m/s] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW]
0.5 0 0 0 0 0 0 0 0 0 0 0 0 0 01.5 0 0 0 0 0 0 0 0 0 0 0 0 0 02.5 0 0 0 0 0 0 0 0 0 0 0 0 0 03.5 661 620 401 479 661 659 601 498 389 484 661 661 635 4784.5 1,696 1,618 1,208 1,356 1,696 1,692 1,583 1,367 1,183 1,356 1,696 1,696 1,650 1,3375.5 3,260 3,126 2,438 2,685 3,260 3,252 3,058 2,709 2,400 2,693 3,260 3,260 3,181 2,6586.5 5,481 5,264 4,164 4,565 5,481 5,467 5,155 4,597 4,103 4,577 5,481 5,481 5,353 4,5157.5 8,470 8,146 6,497 7,100 8,470 8,449 7,983 7,144 6,406 7,113 8,470 8,470 8,280 7,0218.5 12,124 11,719 9,618 10,349 12,124 12,098 11,525 10,423 9,495 10,360 12,124 12,124 11,897 10,2809.5 15,766 15,387 13,376 13,987 15,766 15,742 15,216 14,103 13,263 13,993 15,766 15,766 15,576 13,995
10.5 18,716 18,455 17,008 17,401 18,716 18,701 18,356 17,499 16,916 17,387 18,716 18,716 18,594 17,43911.5 20,500 20,373 19,647 19,830 20,500 20,492 20,332 19,878 19,592 19,802 20,500 20,500 20,442 19,85312.5 21,142 21,115 20,927 20,965 21,142 21,141 21,119 20,963 20,903 20,945 21,142 21,142 21,133 20,96513.5 21,200 21,199 21,195 21,194 21,200 21,200 21,200 21,193 21,192 21,189 21,200 21,200 21,200 21,19414.5 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,20015.5 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,20016.5 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,20017.5 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,20018.5 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,20019.5 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,20020.5 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,200 21,20021.5 20,788 20,818 20,948 20,899 20,788 20,790 20,838 20,891 20,967 20,901 20,788 20,788 20,806 20,90322.5 19,536 19,559 19,683 19,642 19,536 19,538 19,570 19,639 19,690 19,642 19,536 19,536 19,548 19,64623.5 18,080 18,097 18,185 18,156 18,080 18,081 18,106 18,154 18,190 18,156 18,080 18,080 18,089 18,15924.5 17,204 17,212 17,252 17,240 17,204 17,205 17,217 17,238 17,255 17,240 17,204 17,204 17,208 17,24025.5 0 0 0 0 0 0 0 0 0 0 0 0 0 026.5 0 0 0 0 0 0 0 0 0 0 0 0 0 027.5 0 0 0 0 0 0 0 0 0 0 0 0 0 028.5 0 0 0 0 0 0 0 0 0 0 0 0 0 029.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Description:The park power curve is similar to a WTG power curve, meaning that when a given wind speed appears in front of the park with same speed in the entire wind farm area(before influence from the park), the output from the park can be found in the park power curve. Another way to say this: The park power curve includes wake losses,but do NOT include terrain given variations in the wind speed over the park area.Measuring a park power curve is not as simple as measuring a WTG power curve due to the fact that the park power curve depends on the wind direction and that thesame wind speed normally will not appear for the entire park area at the same time (only in very flat non-complex terrain). The idea with this version of the park powercurve is not to use it for validation based on measurements. This would require at least 2 measurement masts at two sides of the park, unless only a few directionsectors should be tested, AND non complex terrain (normally only useable off shore). Another park power curve version for complex terrain is available in windPRO.
The park power curve can be used for:1. Forecast systems, based on more rough (approximated) wind data, the park power curve would be an efficient way to make the connection from wind speed
(and direction) to power.2. Construction of duration curves, telling how often a given power output will appear, the park power curve can be used together with the average wind
distribution for the Wind farm area in hub height. The average wind distribution can eventually be obtained based on the Weibull parameters for each WTGposition. These are found at print menu: >Result to file< in the >Park result< which can be saved to file or copied to clipboard and pasted in Excel.
3. Calculation of wind energy index based on the PARK production (see below).4. Estimation of the expected PARK production for an existing wind farm based on wind measurements at minimum 2 measurement masts at two sides of wind
farm. The masts must be used for obtaining the free wind speed. The free wind speed is used in the simulation of expected energy production with the PARKpower curve. This procedure will only work suitable in non complex terrains. For complex terrain another park power curve calculation is available in windPRO(PPV-model).
Note:From the >Result to file< the >Wind Speeds Inside Wind farm< is also available. These can (e.g. via Excel) be used for extracting the wake induced reductions inmeasured wind speed.
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PARK - WTG distancesCalculation: Park Gori II 4wtg's GE158-5.3 700 Hub=120.9m 17.07.2019
Scale 1:100,000New WTG Existing WTG
WTG distancesZ Nearest WTG Z Horizontal Distance in
distance rotor diameters[m] [m] [m]
1 840.0 3 815.3 337 2.12 794.7 3 815.3 353 2.23 815.3 1 840.0 337 2.14 775.6 2 794.7 765 4.85 864.2 10 850.8 286 2.46 819.2 7 822.3 358 3.17 822.3 6 819.2 358 3.18 830.9 9 835.0 455 3.99 835.0 10 850.8 374 3.2
10 850.8 5 864.2 286 2.4Min 775.6 794.7 286 2.1Max 864.2 864.2 765 4.8
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PARK - Wind statistics infoCalculation: Park Gori II 4wtg's GE158-5.3 700 Hub=120.9m 17.07.2019Main data for wind statisticFile E:\work\WindPRO Data\Projects\Gori II\GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wwsName Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3))Country GeorgiaSource USERMast coordinates UTM (north)-WGS84 Zone: 38 East: 420,904 North: 4,653,454Created 12/07/2019Edited 12/07/2019Sectors 12WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Displacement height None
CommentsFrom MCP
Additional info for wind statisticBased on measurement height 80.0 mBase elevation for measurement mast 845.6 m
Long term correction informationMethod Matrix MCPSource data MERRA_basic_E44.002_N42.000 (3)Distance to source data 4.8 kmLong term period from 01/01/1989Long term period to 01/03/2016Concurrent period from 07/08/2013Concurrent period to 01/03/2016Concurrent data records 10255Concurrent record interval 60 minutesConcurrent data recovery 67.1 %
Number of years with long term data 27.2 yearsNumber of months with concurrent data 14.0 Months
Correlation test based on Concurrent monthly windindicesPower curve used for index Simple power curve truncated at: 14.0 m/sData availability demand for inclusion of month 60 %Number of months 20r^2 - wind index 0.7892r - wind index 0.8884s - wind index 6.1510
NoteTo get the most correct calculation results, wind statistics shall be calculated with the SAME model and model parameters, as currently chosen incalculation. For WAsP versions before 10.0, the model is unchanged, but thereafter more model changes affecting the wind statistic is seen.Likewise WAsP CFD should always use WAsP CFD calculated wind statistics.
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Project:
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PARK - RIX calculationCalculation: Park Gori II 4wtg's GE158-5.3 700 Hub=120.9m 17.07.2019Assumptions
Radius for calculation 3,500 mSteepness threshold 30.0 % / 17 °Directional weight Equally distributedRIX for wind statistic Calculated on windstatistic position. If not available Site data position is usedHeight contours used HCLAlfa 1.0No RIX correction for delta RIX in interval -5.0 % - 5.0 %
Reference sitesTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Site Data/Wind statistics Reference site RIX[%]
A 420,904 4,653,454 Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)) 1.8
WTG sitesUTM (north)-WGS84 Zone: 38
Links Easting Northing Z Reference site RIX WTG RIX Delta RIX (WTG site - Reference site) RIX correction[m] [%] [%] [%] [MWh/y]
1 A 416,358 4,656,168 840.0 1.8 0.0 -1.8 0.002 A 416,443 4,655,527 794.7 1.8 0.0 -1.8 0.003 A 416,519 4,655,872 815.3 1.8 0.0 -1.8 0.004 A 416,173 4,654,811 775.6 1.8 0.0 -1.7 0.005 A 421,119 4,653,602 864.2 1.8 2.1 0.3 0.006 A 421,280 4,651,670 819.2 1.8 1.4 -0.4 0.007 A 421,419 4,652,000 822.3 1.8 1.3 -0.5 0.008 A 421,118 4,652,595 830.9 1.8 1.1 -0.7 0.009 A 420,938 4,653,012 835.0 1.8 1.3 -0.5 0.00
10 A 421,153 4,653,318 850.8 1.8 1.6 -0.2 0.00
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PARK - RIX calculationCalculation: Park Gori II 4wtg's GE158-5.3 700 Hub=120.9m 17.07.2019
Latest research /Risø/ show that the threshold in RIX calculation typically work best with 40% (new default), and that delta Rixwithin +/- 5% should not give corrections. Cross predictions based on more mast can fine tune the threshold, see Cross predictortool in windPRO Meteo Analyzer. In windPRO LOSS&&UNCERTAINTY module, RIX correction can be calculated automatically as abias based on most recent recommended correction formulas, which can be found in EWEC2006 && 08 papers on Rix from Risø,see extract below:
The main conclusion based on use of the RIX method is that if both reference site (measurement mast) and predicted site (WTG)are equally rugged (Delta RIX < 5%), very small calculation errors are expected.If reference site (measurement mast) is very rugged, e.g. RIX = 0.2 and predicted site (WTG) are less rugged (e.g. RIX = 0),Delta RIX will be -0.2 and according to the graph, 30% too low wind speed prediction at WTG site could be expected. This couldlead to around 60%*) too low calculated energy production.If the reference site is less rugged, e.g. RIX = 0, and the predicted site (WTG) are very rugged (e.g. RIX = 0.2), Delta RIX will be+0.2, and according to the graph, 30% too high wind speed prediction at WTG site could be expected. This could lead to around60%*) too high calculated energy production.*) Doubling of energy prediction error based on mean wind speed error is a rough conversion, which holds for wind speedsaround 8 m/s. At 6-7 m/s tripling is more right, while only 1.5 factors should be used for 9 m/s, see graph below based on atypical WTG.
Source: EWEC06 paper:IMPROVING WAsP PREDICTIONS IN (TOO) COMPLEX TERRAINNiels G. Mortensen, Anthony J. Bowen and Ioannis AntoniouWind Energy Department, Risø National Laboratory
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PARK - MapCalculation: Park Gori II 4wtg's GE158-5.3 700 Hub=120.9m 17.07.2019
0 500 1000 1500 2000 mMap: BigGameHunter , Print scale 1:40,000, Map center UTM (north)-WGS84 Zone: 38 East: 418,796 North: 4,653,919
New WTG Existing WTG
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PARK - Main ResultCalculation: Park Gori II 4wtg's E-147 EP5-5MW Hub=126m 17.07.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 126.0 m = 1.119 kg/m³ -> 91.3 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:25,000
New WTG Site Data
Key results for height 126.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent distribution roughness
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 5,611 9.0 2.0
Calculated Annual Energy for Wind FarmSpecific results¤)
WTG combination Result GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speedPARK Free WTGs factor result hours @hub height
[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s]Wind farm 91,346.3 92,512.3 1.3 52.1 22,836.6 4,567 9.0¤) Based on wake reduced results, but no other losses included
*) Included in wake losses is influence from 6 WTG(s) in the neighborhood, which has status as "Reference WTGs", see separate report to identify these.
Calculated Annual Energy for each of 4 new WTGs with total 20.0 MW rated powerWTG type Power curve Annual Energy
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Result Wake Free rated diameter height loss mean
wind speed
[kW] [m] [m] [MWh/y] [%] [m/s]1 A Yes ENERCON E-147 EP5 E2-5,000 5,000 147.0 126.0 EMD Mode 0 Standard_5000 kW - preliminary 23,497.4 2.5 9.302 A Yes ENERCON E-147 EP5 E2-5,000 5,000 147.0 126.0 EMD Mode 0 Standard_5000 kW - preliminary 22,523.1 0.7 8.863 A Yes ENERCON E-147 EP5 E2-5,000 5,000 147.0 126.0 EMD Mode 0 Standard_5000 kW - preliminary 22,705.9 1.2 8.974 A Yes ENERCON E-147 EP5 E2-5,000 5,000 147.0 126.0 EMD Mode 0 Standard_5000 kW - preliminary 22,619.9 0.6 8.88
Annual Energy results do not include any losses apart from wake losses. Additional losses and uncertainty must be considered for an investmentdecision.
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description
[m]1 New 416,358 4,656,168 840.0 ENERCON E-147 EP5 E2 5000 147.0 !O! hub: 126.0 m (TOT: 199.5 m) (17)2 New 416,443 4,655,527 794.7 ENERCON E-147 EP5 E2 5000 147.0 !O! hub: 126.0 m (TOT: 199.5 m) (18)3 New 416,519 4,655,872 815.3 ENERCON E-147 EP5 E2 5000 147.0 !O! hub: 126.0 m (TOT: 199.5 m) (19)4 New 416,173 4,654,811 775.6 ENERCON E-147 EP5 E2 5000 147.0 !O! hub: 126.0 m (TOT: 199.5 m) (21)
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Project:
Gori II
PARK - Reference WTGsCalculation: Park Gori II 4wtg's E-147 EP5-5MW Hub=126m 17.07.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 126.0 m = 1.119 kg/m³ -> 91.3 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Existing WTGKey results for height 126.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent distribution roughness
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 5,611 9.0 2.0
Calculated Annual Energy for reference WTGsSpecific results Specific results
Calculated GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speed Actual wind Goodness Factorprod. without Free WTGs factor result hours @hub height corrected
new WTGs energy[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s] [MWh/y] [%]98,795.5 99,245.5 0.7 54.4 16,465.9 4,773 9.0 0.0
Calculated Annual Energy for each of 6 reference WTGs with total 20.7 MW rated powerWTG type Power curve
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Calculated Goodness rated diameter height prod. Factor
without new WTGs
[kW] [m] [m] [MWh/y] [%]5 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,887.8 06 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 15,756.9 07 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,157.4 08 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,495.5 09 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,396.5 0
10 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 17,101.4 0
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]5 421,119 4,653,602 864.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (1)6 421,280 4,651,670 819.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (2)7 421,419 4,652,000 822.3 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (3)8 421,118 4,652,595 830.9 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (4)9 420,938 4,653,012 835.0 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (5)
10 421,153 4,653,318 850.8 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (6)
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Project:
Gori II
PARK - Production AnalysisCalculation: Park Gori II 4wtg's E-147 EP5-5MW Hub=126m 17.07.2019WTG: All new WTGs, Air density varies with WTG position 1.107 kg/m³ - 1.114 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 58.7 13.7 324.3 9,505.3 26,902.3 3,798.5 82.7 48.7 1,595.6 27,232.0 11,692.0 884.8 82,138.6+Increase due to hills [MWh] 37.0 4.4 340.2 1,467.8 2,705.1 443.2 105.7 16.1 899.1 3,189.7 1,031.8 133.6 10,373.7-Decrease due to wake losses [MWh] 10.7 1.5 0.0 11.6 620.9 338.7 27.9 4.5 0.0 0.0 72.3 77.8 1,166.0Resulting energy [MWh] 85.0 16.5 664.4 10,961.5 28,986.5 3,903.0 160.6 60.2 2,494.7 30,421.6 12,651.6 940.5 91,346.3Specific energy [kWh/m²] 1,346Specific energy [kWh/kW] 4,567Increase due to hills [%] 63.1 32.1 104.9 15.4 10.1 11.7 127.8 33.1 56.4 11.7 8.8 15.1 12.63Decrease due to wake losses [%] 11.2 8.5 0.0 0.1 2.1 8.0 14.8 7.0 0.0 0.0 0.6 7.6 1.26Utilization [%] 21.6 25.2 24.6 26.5 26.8 25.1 21.6 19.5 21.3 22.5 22.7 19.4 24.3Operational [Hours/year] 57 12 143 1,047 2,684 519 29 18 334 2,398 1,176 200 8,617Full Load Equivalent [Hours/year] 4 1 33 548 1,449 195 8 3 125 1,521 633 47 4,567
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Project:
Gori II
PARK - Production AnalysisCalculation: Park Gori II 4wtg's E-147 EP5-5MW Hub=126m 17.07.2019WTG: All existing WTGs, Air density varies with WTG position 1.107 kg/m³ - 1.114 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 41.5 12.3 275.4 9,755.1 23,431.9 2,991.1 27.4 37.0 1,394.9 27,396.4 10,983.1 743.0 77,089.1+Increase due to hills [MWh] 20.3 2.5 282.0 3,780.8 6,429.0 532.1 55.1 12.1 889.4 7,721.2 2,324.0 108.0 22,156.4-Decrease due to wake losses [MWh] 10.8 1.9 3.5 0.0 0.0 332.0 9.5 5.6 11.6 27.5 200.3 75.3 678.0Resulting energy [MWh] 51.0 12.9 553.8 13,535.9 29,860.9 3,191.1 73.1 43.5 2,272.7 35,090.1 13,106.8 775.6 98,567.5Specific energy [kWh/m²] 1,528Specific energy [kWh/kW] 4,762Increase due to hills [%] 48.9 20.0 102.4 38.8 27.4 17.8 201.0 32.7 63.8 28.2 21.2 14.5 28.74Decrease due to wake losses [%] 17.5 13.0 0.6 0.0 0.0 9.4 11.5 11.4 0.5 0.1 1.5 8.9 0.68Utilization [%] 24.2 27.5 27.6 29.9 32.2 30.4 27.7 22.7 24.4 24.3 25.2 23.1 27.3Operational [Hours/year] 50 13 130 1,183 2,598 470 15 16 306 2,498 1,146 183 8,608Full Load Equivalent [Hours/year] 2 1 27 654 1,443 154 4 2 110 1,695 633 37 4,762
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Project:
Gori II
PARK - Power Curve AnalysisCalculation: Park Gori II 4wtg's E-147 EP5-5MW Hub=126m 17.07.2019WTG: 1 - ENERCON E-147 EP5 E2 5000 147.0 !O!, Hub height: 126.0 mName: Mode 0 Standard_5000 kW - preliminarySource: Enercon GmbH
Source/Date Created by Created Edited Stop wind speed Power control CT curve type Generator type Specific power[m/s] kW/m²
10/05/2019 EMD 15/03/2019 15/07/2019 25.0 Pitch User defined Variable 0.29D0810273-1_#_en_#_Data sheet operating modes E-147 EP5 E2_5000 kW mit TES.pdfThis data is preliminary. Subject to technical changes.Enercon reserves the right to change the above specifications without prior notice.
HP curve comparison - Note: For standard air density
Vmean [m/s] 5 6 7 8 9 10HP value Pitch, variable speed (2013) [MWh] 8,581 13,010 17,262 21,030 24,193 26,713ENERCON E-147 EP5 E2 5000 147.0 !O! Mode 0 Standard_5000 kW - preliminary [MWh] 8,091 12,179 16,183 19,811 22,914 25,414Check value [%] 6 7 7 6 6 5The table shows comparison between annual energy production calculated on basis of simplified "HP-curves" which assume that all WTGs performs quite similar - only specific power loading(kW/m^2) and single/dual speed or stall/pitch decides the calculated values. Productions are without wake losses.For further details, ask at the Danish Energy Agency for project report J.nr. 51171/00-0016 or see windPRO manual chapter 3.5.2.The method is refined in EMD report "20 Detailed Case Studies comparing Project Design Calculations and actual Energy Productions for Wind Energy Projects worldwide", jan 2003.Use the table to evaluate if the given power curve is reasonable - if the check value are lower than -5%, the power curve probably is too optimistic due to uncertainty in power curvemeasurement.
Power curveOriginal data, Air density: 1.225 kg/m³Wind speed Power Cp Wind speed Ct curve
[m/s] [kW] [m/s]3.0 68.0 0.24 3.0 0.883.5 143.0 0.32 3.5 0.844.0 248.0 0.37 4.0 0.834.5 382.0 0.40 4.5 0.835.0 548.0 0.42 5.0 0.825.5 748.0 0.43 5.5 0.826.0 986.0 0.44 6.0 0.826.5 1,263.0 0.44 6.5 0.817.0 1,578.0 0.44 7.0 0.797.5 1,926.0 0.44 7.5 0.778.0 2,297.0 0.43 8.0 0.748.5 2,676.0 0.42 8.5 0.709.0 3,050.0 0.40 9.0 0.659.5 3,406.0 0.38 9.5 0.6010.0 3,736.0 0.36 10.0 0.5510.5 4,036.0 0.34 10.5 0.5011.0 4,297.0 0.31 11.0 0.4611.5 4,514.0 0.29 11.5 0.4112.0 4,682.0 0.26 12.0 0.3712.5 4,804.0 0.24 12.5 0.3413.0 4,886.0 0.21 13.0 0.3013.5 4,937.0 0.19 13.5 0.2714.0 4,967.0 0.17 14.0 0.2414.5 4,984.0 0.16 14.5 0.2215.0 4,993.0 0.14 15.0 0.2015.5 4,997.0 0.13 15.5 0.1816.0 4,999.0 0.12 16.0 0.1616.5 5,000.0 0.11 16.5 0.1517.0 5,000.0 0.10 17.0 0.1417.5 5,000.0 0.09 17.5 0.1218.0 5,000.0 0.08 18.0 0.1118.5 5,000.0 0.08 18.5 0.1119.0 5,000.0 0.07 19.0 0.1019.5 5,000.0 0.06 19.5 0.0920.0 5,000.0 0.06 20.0 0.0920.5 5,000.0 0.06 20.5 0.0821.0 5,000.0 0.05 21.0 0.0721.5 5,000.0 0.05 21.5 0.0722.0 5,000.0 0.05 22.0 0.0722.5 5,000.0 0.04 22.5 0.0623.0 5,000.0 0.04 23.0 0.0623.5 5,000.0 0.04 23.5 0.0624.0 5,000.0 0.03 24.0 0.0524.5 5,000.0 0.03 24.5 0.0525.0 5,000.0 0.03 25.0 0.05
Power, Efficiency and energy vs. wind speedData used in calculation, Air density: 1.107 kg/m³ New windPRO method(adjusted IEC method, improved to match turbine control) <RECOMMENDED>Wind speed Power Cp Interval Energy Acc.Energy Relative
[m/s] [kW] [m/s] [MWh] [MWh] [%]1.0 0.0 0.00 0.50- 1.50 0.0 0.0 0.02.0 0.0 0.00 1.50- 2.50 0.0 0.0 0.03.0 52.5 0.21 2.50- 3.50 21.1 21.1 0.14.0 219.1 0.36 3.50- 4.50 99.5 120.7 0.55.0 490.8 0.42 4.50- 5.50 274.7 395.3 1.76.0 887.6 0.44 5.50- 6.50 592.1 987.5 4.27.0 1,426.1 0.44 6.50- 7.50 1,077.2 2,064.7 8.88.0 2,091.5 0.44 7.50- 8.50 1,695.1 3,759.8 16.09.0 2,803.4 0.41 8.50- 9.50 2,320.0 6,079.7 25.910.0 3,463.6 0.37 9.50-10.50 2,785.7 8,865.4 37.711.0 4,018.2 0.32 10.50-11.50 2,977.2 11,842.7 50.412.0 4,440.3 0.27 11.50-12.50 2,869.8 14,712.5 62.613.0 4,732.9 0.23 12.50-13.50 2,519.8 17,232.3 73.314.0 4,900.1 0.19 13.50-14.50 2,029.6 19,261.9 82.015.0 4,969.6 0.16 14.50-15.50 1,511.7 20,773.6 88.416.0 4,993.0 0.13 15.50-16.50 1,052.0 21,825.6 92.917.0 4,998.8 0.11 16.50-17.50 689.6 22,515.2 95.818.0 5,000.0 0.09 17.50-18.50 428.2 22,943.5 97.619.0 5,000.0 0.08 18.50-19.50 253.1 23,196.6 98.720.0 5,000.0 0.07 19.50-20.50 143.3 23,339.9 99.321.0 5,000.0 0.06 20.50-21.50 78.3 23,418.1 99.722.0 5,000.0 0.05 21.50-22.50 41.7 23,459.8 99.823.0 5,000.0 0.04 22.50-23.50 22.0 23,481.8 99.924.0 5,000.0 0.04 23.50-24.50 11.6 23,493.4 100.025.0 5,000.0 0.03 24.50-25.50 4.1 23,497.4 100.0
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Project:
Gori II
PARK - TerrainCalculation: Park Gori II 4wtg's E-147 EP5-5MW Hub=126m 17.07.2019Site Data: A - WAsP Gori II
Obstacles:
0 Obstacles used
Roughness:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\ROUGHNESSLINE_ONLINEDATA_1.wpoMin X: 398,219, Max X: 428,401, Min Y: 4,642,241, Max Y: 4,671,415, Width: 30,182 m, Height: 29,175 m
Orography:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\CONTOURLINE_ONLINEDATA_0.wpoMin X: 402,913, Max X: 423,154, Min Y: 4,646,647, Max Y: 4,666,294, Width: 20,242 m, Height: 19,648 m
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Project:
Gori II
PARK - Wind Data AnalysisCalculation: Park Gori II 4wtg's E-147 EP5-5MW Hub=126m 17.07.2019 Wind data: A - WAsP Gori II; Hub height: 91.5Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.18 2.28 0.908 0.6 2.80 0.865 0.9 1 NNE 2.43 2.45 0.982 0.1 2.11 0.904 0.2 2 ENE 4.22 3.95 1.225 1.3 3.07 1.031 0.8 3 E 9.10 8.09 2.725 11.9 9.73 2.648 9.3 4 ESE 9.50 8.48 3.037 32.0 10.19 3.016 30.4 5 SSE 7.98 7.06 2.209 6.0 9.44 2.549 10.1 6 S 4.84 4.49 1.275 0.1 8.11 1.983 1.0 7 SSW 4.08 3.95 1.088 0.2 4.94 1.131 0.1 8 WSW 6.26 5.68 1.451 2.9 4.72 1.121 1.7 9 W 10.68 9.54 2.971 28.5 11.28 2.953 25.210 WNW 9.72 8.62 2.447 14.0 10.72 2.556 16.511 NNW 5.59 5.17 1.287 2.3 8.56 1.813 3.9All 9.46 8.40 2.525 100.0 10.17 2.524 100.0
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Project:
Gori II
PARK - Wind Data AnalysisCalculation: Park Gori II 4wtg's E-147 EP5-5MW Hub=126m 17.07.2019 Wind data: A - WAsP Gori II; Hub height: 126.0Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.38 2.50 0.904 0.6 3.07 0.863 0.9 1 NNE 2.64 2.67 0.979 0.1 2.30 0.900 0.2 2 ENE 4.62 4.32 1.229 1.3 3.35 1.027 0.8 3 E 9.86 8.77 2.717 11.9 10.67 2.633 9.3 4 ESE 10.28 9.19 3.033 32.1 11.17 3.000 30.4 5 SSE 8.62 7.64 2.201 6.1 10.36 2.533 10.1 6 S 5.42 5.01 1.299 0.1 8.90 1.973 1.0 7 SSW 4.42 4.29 1.084 0.2 5.39 1.127 0.1 8 WSW 6.80 6.17 1.455 2.9 5.17 1.113 1.7 9 W 11.41 10.18 2.971 28.4 12.16 2.947 25.210 WNW 10.41 9.23 2.447 14.0 11.55 2.550 16.511 NNW 6.02 5.58 1.283 2.3 9.27 1.807 3.9All 10.18 9.04 2.529 100.0 11.06 2.523 100.0
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Project:
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PARK - Park power curveCalculation: Park Gori II 4wtg's E-147 EP5-5MW Hub=126m 17.07.2019
PowerWind Free Park N NNE ENE E ESE SSE S SSW WSW W WNW NNWspeed WTGs WTGs[m/s] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW]
0.5 0 0 0 0 0 0 0 0 0 0 0 0 0 01.5 0 0 0 0 0 0 0 0 0 0 0 0 0 02.5 0 0 0 0 0 0 0 0 0 0 0 0 0 03.5 502 474 322 377 502 500 462 382 318 385 502 502 488 3714.5 1,367 1,308 1,005 1,119 1,367 1,363 1,279 1,116 987 1,121 1,367 1,367 1,337 1,0945.5 2,698 2,593 2,054 2,256 2,698 2,691 2,541 2,250 2,024 2,262 2,698 2,698 2,646 2,2126.5 4,572 4,403 3,544 3,866 4,572 4,560 4,319 3,855 3,496 3,875 4,572 4,572 4,488 3,7957.5 7,008 6,772 5,576 6,009 7,008 6,991 6,654 6,004 5,509 6,020 7,008 7,008 6,895 5,9248.5 9,823 9,547 8,134 8,619 9,823 9,803 9,413 8,620 8,056 8,630 9,823 9,823 9,699 8,5369.5 12,610 12,348 11,017 11,436 12,610 12,591 12,218 11,453 10,943 11,439 12,610 12,610 12,503 11,384
10.5 15,056 14,852 13,802 14,114 15,056 15,042 14,756 14,135 13,738 14,107 15,056 15,056 14,975 14,08511.5 17,017 16,882 16,149 16,361 17,017 17,008 16,832 16,375 16,101 16,350 17,017 17,017 16,962 16,34212.5 18,439 18,360 17,899 18,034 18,439 18,434 18,342 18,032 17,871 18,027 18,439 18,439 18,406 18,01413.5 19,344 19,306 19,074 19,140 19,344 19,342 19,300 19,135 19,056 19,133 19,344 19,344 19,328 19,12814.5 19,780 19,767 19,680 19,705 19,780 19,780 19,766 19,699 19,671 19,701 19,780 19,780 19,775 19,69715.5 19,941 19,937 19,912 19,919 19,941 19,941 19,937 19,917 19,909 19,918 19,941 19,941 19,940 19,91716.5 19,988 19,987 19,982 19,983 19,988 19,988 19,987 19,983 19,981 19,983 19,988 19,988 19,988 19,98317.5 20,000 19,999 19,998 19,999 20,000 20,000 19,999 19,998 19,998 19,998 20,000 20,000 20,000 19,99818.5 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,00019.5 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,00020.5 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,00021.5 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,00022.5 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,00023.5 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,00024.5 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,000 20,00025.5 0 0 0 0 0 0 0 0 0 0 0 0 0 026.5 0 0 0 0 0 0 0 0 0 0 0 0 0 027.5 0 0 0 0 0 0 0 0 0 0 0 0 0 028.5 0 0 0 0 0 0 0 0 0 0 0 0 0 029.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Description:The park power curve is similar to a WTG power curve, meaning that when a given wind speed appears in front of the park with same speed in the entire wind farm area(before influence from the park), the output from the park can be found in the park power curve. Another way to say this: The park power curve includes wake losses,but do NOT include terrain given variations in the wind speed over the park area.Measuring a park power curve is not as simple as measuring a WTG power curve due to the fact that the park power curve depends on the wind direction and that thesame wind speed normally will not appear for the entire park area at the same time (only in very flat non-complex terrain). The idea with this version of the park powercurve is not to use it for validation based on measurements. This would require at least 2 measurement masts at two sides of the park, unless only a few directionsectors should be tested, AND non complex terrain (normally only useable off shore). Another park power curve version for complex terrain is available in windPRO.
The park power curve can be used for:1. Forecast systems, based on more rough (approximated) wind data, the park power curve would be an efficient way to make the connection from wind speed
(and direction) to power.2. Construction of duration curves, telling how often a given power output will appear, the park power curve can be used together with the average wind
distribution for the Wind farm area in hub height. The average wind distribution can eventually be obtained based on the Weibull parameters for each WTGposition. These are found at print menu: >Result to file< in the >Park result< which can be saved to file or copied to clipboard and pasted in Excel.
3. Calculation of wind energy index based on the PARK production (see below).4. Estimation of the expected PARK production for an existing wind farm based on wind measurements at minimum 2 measurement masts at two sides of wind
farm. The masts must be used for obtaining the free wind speed. The free wind speed is used in the simulation of expected energy production with the PARKpower curve. This procedure will only work suitable in non complex terrains. For complex terrain another park power curve calculation is available in windPRO(PPV-model).
Note:From the >Result to file< the >Wind Speeds Inside Wind farm< is also available. These can (e.g. via Excel) be used for extracting the wake induced reductions inmeasured wind speed.
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PARK - WTG distancesCalculation: Park Gori II 4wtg's E-147 EP5-5MW Hub=126m 17.07.2019
Scale 1:100,000New WTG Existing WTG
WTG distancesZ Nearest WTG Z Horizontal Distance in
distance rotor diameters[m] [m] [m]
1 840.0 3 815.3 337 2.32 794.7 3 815.3 353 2.43 815.3 1 840.0 337 2.34 775.6 2 794.7 765 5.25 864.2 10 850.8 286 2.46 819.2 7 822.3 358 3.17 822.3 6 819.2 358 3.18 830.9 9 835.0 455 3.99 835.0 10 850.8 374 3.2
10 850.8 5 864.2 286 2.4Min 775.6 794.7 286 2.3Max 864.2 864.2 765 5.2
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PARK - Wind statistics infoCalculation: Park Gori II 4wtg's E-147 EP5-5MW Hub=126m 17.07.2019Main data for wind statisticFile E:\work\WindPRO Data\Projects\Gori II\GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wwsName Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3))Country GeorgiaSource USERMast coordinates UTM (north)-WGS84 Zone: 38 East: 420,904 North: 4,653,454Created 12/07/2019Edited 12/07/2019Sectors 12WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Displacement height None
CommentsFrom MCP
Additional info for wind statisticBased on measurement height 80.0 mBase elevation for measurement mast 845.6 m
Long term correction informationMethod Matrix MCPSource data MERRA_basic_E44.002_N42.000 (3)Distance to source data 4.8 kmLong term period from 01/01/1989Long term period to 01/03/2016Concurrent period from 07/08/2013Concurrent period to 01/03/2016Concurrent data records 10255Concurrent record interval 60 minutesConcurrent data recovery 67.1 %
Number of years with long term data 27.2 yearsNumber of months with concurrent data 14.0 Months
Correlation test based on Concurrent monthly windindicesPower curve used for index Simple power curve truncated at: 14.0 m/sData availability demand for inclusion of month 60 %Number of months 20r^2 - wind index 0.7892r - wind index 0.8884s - wind index 6.1510
NoteTo get the most correct calculation results, wind statistics shall be calculated with the SAME model and model parameters, as currently chosen incalculation. For WAsP versions before 10.0, the model is unchanged, but thereafter more model changes affecting the wind statistic is seen.Likewise WAsP CFD should always use WAsP CFD calculated wind statistics.
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PARK - RIX calculationCalculation: Park Gori II 4wtg's E-147 EP5-5MW Hub=126m 17.07.2019Assumptions
Radius for calculation 3,500 mSteepness threshold 30.0 % / 17 °Directional weight Equally distributedRIX for wind statistic Calculated on windstatistic position. If not available Site data position is usedHeight contours used HCLAlfa 1.0No RIX correction for delta RIX in interval -5.0 % - 5.0 %
Reference sitesTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Site Data/Wind statistics Reference site RIX[%]
A 420,904 4,653,454 Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)) 1.8
WTG sitesUTM (north)-WGS84 Zone: 38
Links Easting Northing Z Reference site RIX WTG RIX Delta RIX (WTG site - Reference site) RIX correction[m] [%] [%] [%] [MWh/y]
1 A 416,358 4,656,168 840.0 1.8 0.0 -1.8 0.002 A 416,443 4,655,527 794.7 1.8 0.0 -1.8 0.003 A 416,519 4,655,872 815.3 1.8 0.0 -1.8 0.004 A 416,173 4,654,811 775.6 1.8 0.0 -1.7 0.005 A 421,119 4,653,602 864.2 1.8 2.1 0.3 0.006 A 421,280 4,651,670 819.2 1.8 1.4 -0.4 0.007 A 421,419 4,652,000 822.3 1.8 1.3 -0.5 0.008 A 421,118 4,652,595 830.9 1.8 1.1 -0.7 0.009 A 420,938 4,653,012 835.0 1.8 1.3 -0.5 0.00
10 A 421,153 4,653,318 850.8 1.8 1.6 -0.2 0.00
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PARK - RIX calculationCalculation: Park Gori II 4wtg's E-147 EP5-5MW Hub=126m 17.07.2019
Latest research /Risø/ show that the threshold in RIX calculation typically work best with 40% (new default), and that delta Rixwithin +/- 5% should not give corrections. Cross predictions based on more mast can fine tune the threshold, see Cross predictortool in windPRO Meteo Analyzer. In windPRO LOSS&&UNCERTAINTY module, RIX correction can be calculated automatically as abias based on most recent recommended correction formulas, which can be found in EWEC2006 && 08 papers on Rix from Risø,see extract below:
The main conclusion based on use of the RIX method is that if both reference site (measurement mast) and predicted site (WTG)are equally rugged (Delta RIX < 5%), very small calculation errors are expected.If reference site (measurement mast) is very rugged, e.g. RIX = 0.2 and predicted site (WTG) are less rugged (e.g. RIX = 0),Delta RIX will be -0.2 and according to the graph, 30% too low wind speed prediction at WTG site could be expected. This couldlead to around 60%*) too low calculated energy production.If the reference site is less rugged, e.g. RIX = 0, and the predicted site (WTG) are very rugged (e.g. RIX = 0.2), Delta RIX will be+0.2, and according to the graph, 30% too high wind speed prediction at WTG site could be expected. This could lead to around60%*) too high calculated energy production.*) Doubling of energy prediction error based on mean wind speed error is a rough conversion, which holds for wind speedsaround 8 m/s. At 6-7 m/s tripling is more right, while only 1.5 factors should be used for 9 m/s, see graph below based on atypical WTG.
Source: EWEC06 paper:IMPROVING WAsP PREDICTIONS IN (TOO) COMPLEX TERRAINNiels G. Mortensen, Anthony J. Bowen and Ioannis AntoniouWind Energy Department, Risø National Laboratory
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PARK - MapCalculation: Park Gori II 4wtg's E-147 EP5-5MW Hub=126m 17.07.2019
0 500 1000 1500 2000 mMap: BigGameHunter , Print scale 1:40,000, Map center UTM (north)-WGS84 Zone: 38 East: 418,796 North: 4,653,919
New WTG Existing WTG
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PARK - Main ResultCalculation: Park Gori II 5wtg's N149-4.5 Hub=105m 17.07.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 105.0 m = 1.121 kg/m³ -> 91.5 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Site Data
Key results for height 105.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent distribution roughness
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 4,896 8.6 1.9
Calculated Annual Energy for Wind FarmSpecific results¤)
WTG combination Result GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speedPARK Free WTGs factor result hours @hub height
[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s]Wind farm 110,008.3 112,229.5 2.0 55.8 22,001.7 4,889 8.6¤) Based on wake reduced results, but no other losses included
*) Included in wake losses is influence from 6 WTG(s) in the neighborhood, which has status as "Reference WTGs", see separate report to identify these.
Calculated Annual Energy for each of 5 new WTGs with total 22.5 MW rated powerWTG type Power curve Annual Energy
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Result Wake Free rated diameter height loss mean
wind speed
[kW] [m] [m] [MWh/y] [%] [m/s]1 A Yes NORDEX N149/4.0-4.5-4,500 4,500 149.0 105.0 EMD Mode 00 - 4500kW - 1.225 kg/m³ - ESCO R04 22,955.2 2.9 8.942 A Yes NORDEX N149/4.0-4.5-4,500 4,500 149.0 105.0 EMD Mode 00 - 4500kW - 1.225 kg/m³ - ESCO R04 21,935.2 0.8 8.453 A Yes NORDEX N149/4.0-4.5-4,500 4,500 149.0 105.0 EMD Mode 00 - 4500kW - 1.225 kg/m³ - ESCO R04 22,128.6 1.4 8.564 A Yes NORDEX N149/4.0-4.5-4,500 4,500 149.0 105.0 EMD Mode 00 - 4500kW - 1.225 kg/m³ - ESCO R04 21,466.9 1.6 8.355 A Yes NORDEX N149/4.0-4.5-4,500 4,500 149.0 105.0 EMD Mode 00 - 4500kW - 1.225 kg/m³ - ESCO R04 21,522.3 3.1 8.48
Annual Energy results do not include any losses apart from wake losses. Additional losses and uncertainty must be considered for an investmentdecision.
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description
[m]1 New 416,358 4,656,168 840.0 NORDEX N149/4.0-4.5 4500 149.0 !O! hub: 105.0 m (TOT: 179.5 m) (22)2 New 416,443 4,655,527 794.7 NORDEX N149/4.0-4.5 4500 149.0 !O! hub: 105.0 m (TOT: 179.5 m) (23)3 New 416,519 4,655,872 815.3 NORDEX N149/4.0-4.5 4500 149.0 !O! hub: 105.0 m (TOT: 179.5 m) (24)4 New 415,693 4,654,652 753.1 NORDEX N149/4.0-4.5 4500 149.0 !O! hub: 105.0 m (TOT: 179.5 m) (25)5 New 416,173 4,654,811 775.6 NORDEX N149/4.0-4.5 4500 149.0 !O! hub: 105.0 m (TOT: 179.5 m) (26)
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PARK - Reference WTGsCalculation: Park Gori II 5wtg's N149-4.5 Hub=105m 17.07.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 105.0 m = 1.121 kg/m³ -> 91.5 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Existing WTGKey results for height 105.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent distribution roughness
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 4,896 8.6 1.9
Calculated Annual Energy for reference WTGsSpecific results Specific results
Calculated GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speed Actual wind Goodness Factorprod. without Free WTGs factor result hours @hub height corrected
new WTGs energy[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s] [MWh/y] [%]98,795.5 99,245.5 0.8 54.4 16,465.9 4,773 9.0 0.0
Calculated Annual Energy for each of 6 reference WTGs with total 20.7 MW rated powerWTG type Power curve
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Calculated Goodness rated diameter height prod. Factor
without new WTGs
[kW] [m] [m] [MWh/y] [%]6 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,887.8 07 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 15,756.9 08 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,157.4 09 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,495.5 0
10 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,396.5 011 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 17,101.4 0
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]6 421,119 4,653,602 864.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (1)7 421,280 4,651,670 819.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (2)8 421,419 4,652,000 822.3 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (3)9 421,118 4,652,595 830.9 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (4)
10 420,938 4,653,012 835.0 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (5)11 421,153 4,653,318 850.8 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (6)
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PARK - Production AnalysisCalculation: Park Gori II 5wtg's N149-4.5 Hub=105m 17.07.2019WTG: All new WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.118 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 66.0 15.4 371.4 11,615.3 32,711.5 4,547.1 88.7 56.0 1,856.7 33,527.4 14,285.0 1,041.6 100,182.0+Increase due to hills [MWh] 39.8 4.8 376.2 1,786.5 3,219.8 494.4 115.1 18.0 1,004.4 3,653.0 1,189.5 146.2 12,047.5-Decrease due to wake losses [MWh] 11.1 2.2 18.5 255.0 771.3 387.4 33.9 7.3 85.6 481.6 84.4 82.8 2,221.2Resulting energy [MWh] 94.7 17.9 729.0 13,146.8 35,159.9 4,654.1 169.8 66.8 2,775.4 36,698.7 15,390.1 1,104.9 110,008.2Specific energy [kWh/m²] 1,262Specific energy [kWh/kW] 4,889Increase due to hills [%] 60.3 31.1 101.3 15.4 9.8 10.9 129.8 32.2 54.1 10.9 8.3 14.0 12.03Decrease due to wake losses [%] 10.5 10.9 2.5 1.9 2.1 7.7 16.7 9.8 3.0 1.3 0.5 7.0 1.98Utilization [%] 23.4 26.6 26.3 28.9 30.0 28.2 23.2 20.7 22.5 24.1 24.8 21.4 26.5Operational [Hours/year] 56 12 140 1,051 2,681 515 27 17 324 2,406 1,175 198 8,602Full Load Equivalent [Hours/year] 4 1 32 584 1,563 207 8 3 123 1,631 684 49 4,889
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PARK - Production AnalysisCalculation: Park Gori II 5wtg's N149-4.5 Hub=105m 17.07.2019WTG: All existing WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.118 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 41.5 12.3 275.4 9,755.1 23,431.9 2,991.1 27.4 37.0 1,394.9 27,396.4 10,983.1 743.0 77,089.1+Increase due to hills [MWh] 20.3 2.5 282.0 3,780.8 6,429.0 532.1 55.1 12.1 889.4 7,721.2 2,324.0 108.0 22,156.4-Decrease due to wake losses [MWh] 10.8 1.9 3.5 0.0 0.0 332.0 9.5 5.6 11.6 63.4 244.2 75.4 757.8Resulting energy [MWh] 51.0 12.9 553.8 13,535.9 29,860.9 3,191.1 73.1 43.5 2,272.7 35,054.2 13,062.9 775.6 98,487.7Specific energy [kWh/m²] 1,527Specific energy [kWh/kW] 4,758Increase due to hills [%] 48.9 20.0 102.4 38.8 27.4 17.8 201.0 32.7 63.8 28.2 21.2 14.5 28.74Decrease due to wake losses [%] 17.5 13.0 0.6 0.0 0.0 9.4 11.5 11.4 0.5 0.2 1.8 8.9 0.76Utilization [%] 24.2 27.5 27.6 29.9 32.2 30.4 27.7 22.7 24.4 24.3 25.1 23.1 27.3Operational [Hours/year] 50 13 130 1,183 2,598 470 15 16 306 2,498 1,146 183 8,608Full Load Equivalent [Hours/year] 2 1 27 654 1,443 154 4 2 110 1,693 631 37 4,758
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PARK - Power Curve AnalysisCalculation: Park Gori II 5wtg's N149-4.5 Hub=105m 17.07.2019WTG: 1 - NORDEX N149/4.0-4.5 4500 149.0 !O!, Hub height: 105.0 mName: Mode 00 - 4500kW - 1.225 kg/m³ - ESCO R04Source: F008_270_A13_R04
Source/Date Created by Created Edited Stop wind speed Power control CT curve type Generator type Specific power[m/s] kW/m²
08/11/2018 EMD 03/07/2017 20/12/2018 26.0 Pitch User defined Variable 0.26
HP curve comparison - Note: For standard air density
Vmean [m/s] 5 6 7 8 9 10HP value Pitch, variable speed (2013) [MWh] 8,583 12,750 16,640 20,011 22,797 24,986NORDEX N149/4.0-4.5 4500 149.0 !O! Mode 00 - 4500kW - 1.225 kg/m³ - ESCO R04 [MWh] 8,679 12,893 16,803 20,161 22,891 24,984Check value [%] -1 -1 -1 -1 0 0The table shows comparison between annual energy production calculated on basis of simplified "HP-curves" which assume that all WTGs performs quite similar - only specific power loading(kW/m^2) and single/dual speed or stall/pitch decides the calculated values. Productions are without wake losses.For further details, ask at the Danish Energy Agency for project report J.nr. 51171/00-0016 or see windPRO manual chapter 3.5.2.The method is refined in EMD report "20 Detailed Case Studies comparing Project Design Calculations and actual Energy Productions for Wind Energy Projects worldwide", jan 2003.Use the table to evaluate if the given power curve is reasonable - if the check value are lower than -5%, the power curve probably is too optimistic due to uncertainty in power curvemeasurement.
Power curveOriginal data, Air density: 1.225 kg/m³Wind speed Power Cp Wind speed Ct curve
[m/s] [kW] [m/s]3.0 31.0 0.11 3.0 0.833.5 122.0 0.27 3.5 0.834.0 247.0 0.36 4.0 0.824.5 400.0 0.41 4.5 0.815.0 584.0 0.44 5.0 0.805.5 800.0 0.45 5.5 0.796.0 1,054.0 0.46 6.0 0.796.5 1,349.0 0.46 6.5 0.797.0 1,691.0 0.46 7.0 0.797.5 2,083.0 0.46 7.5 0.798.0 2,527.0 0.46 8.0 0.778.5 3,016.0 0.46 8.5 0.749.0 3,506.0 0.45 9.0 0.709.5 3,894.0 0.43 9.5 0.6510.0 4,177.0 0.39 10.0 0.5910.5 4,367.0 0.35 10.5 0.5411.0 4,470.0 0.31 11.0 0.4911.5 4,500.0 0.28 11.5 0.4412.0 4,500.0 0.24 12.0 0.3912.5 4,500.0 0.22 12.5 0.3513.0 4,500.0 0.19 13.0 0.3013.5 4,500.0 0.17 13.5 0.2714.0 4,500.0 0.15 14.0 0.2314.5 4,500.0 0.14 14.5 0.2115.0 4,500.0 0.12 15.0 0.1915.5 4,500.0 0.11 15.5 0.1716.0 4,500.0 0.10 16.0 0.1516.5 4,500.0 0.09 16.5 0.1417.0 4,500.0 0.09 17.0 0.1317.5 4,500.0 0.08 17.5 0.1218.0 4,500.0 0.07 18.0 0.1118.5 4,500.0 0.07 18.5 0.1019.0 4,500.0 0.06 19.0 0.1019.5 4,500.0 0.06 19.5 0.0920.0 4,500.0 0.05 20.0 0.0920.5 4,455.0 0.05 20.5 0.0821.0 4,307.0 0.04 21.0 0.0821.5 4,131.0 0.04 21.5 0.0722.0 3,951.0 0.03 22.0 0.0622.5 3,776.0 0.03 22.5 0.0523.0 3,600.0 0.03 23.0 0.0523.5 3,420.0 0.02 23.5 0.0424.0 3,245.0 0.02 24.0 0.0424.5 3,065.0 0.02 24.5 0.0425.0 2,885.0 0.02 25.0 0.0325.5 2,705.0 0.02 25.5 0.0326.0 2,529.0 0.01 26.0 0.03
Power, Efficiency and energy vs. wind speedData used in calculation, Air density: 1.109 kg/m³ New windPRO method(adjusted IEC method, improved to match turbine control) <RECOMMENDED>Wind speed Power Cp Interval Energy Acc.Energy Relative
[m/s] [kW] [m/s] [MWh] [MWh] [%]1.0 0.0 0.00 0.50- 1.50 0.0 0.0 0.02.0 0.0 0.00 1.50- 2.50 0.0 0.0 0.03.0 12.6 0.05 2.50- 3.50 18.3 18.3 0.14.0 213.2 0.34 3.50- 4.50 106.4 124.7 0.55.0 521.9 0.43 4.50- 5.50 315.8 440.5 1.96.0 951.1 0.46 5.50- 6.50 685.0 1,125.5 4.97.0 1,529.4 0.46 6.50- 7.50 1,243.4 2,368.9 10.38.0 2,285.9 0.46 7.50- 8.50 1,975.6 4,344.5 18.99.0 3,189.1 0.45 8.50- 9.50 2,737.5 7,081.9 30.910.0 3,947.7 0.41 9.50-10.50 3,204.5 10,286.4 44.811.0 4,359.4 0.34 10.50-11.50 3,178.7 13,465.1 58.712.0 4,490.5 0.27 11.50-12.50 2,770.6 16,235.7 70.713.0 4,500.0 0.21 12.50-13.50 2,197.6 18,433.4 80.314.0 4,500.0 0.17 13.50-14.50 1,626.0 20,059.3 87.415.0 4,500.0 0.14 14.50-15.50 1,129.9 21,189.3 92.316.0 4,500.0 0.11 15.50-16.50 739.0 21,928.2 95.517.0 4,500.0 0.09 16.50-17.50 456.2 22,384.5 97.518.0 4,500.0 0.08 17.50-18.50 267.1 22,651.5 98.719.0 4,500.0 0.07 18.50-19.50 149.1 22,800.6 99.320.0 4,500.0 0.06 19.50-20.50 79.6 22,880.2 99.721.0 4,307.0 0.05 20.50-21.50 40.2 22,920.4 99.822.0 3,951.0 0.04 21.50-22.50 19.0 22,939.4 99.923.0 3,600.0 0.03 22.50-23.50 8.9 22,948.3 100.024.0 3,245.0 0.02 23.50-24.50 4.2 22,952.5 100.025.0 2,885.0 0.02 24.50-25.50 2.0 22,954.5 100.026.0 2,529.0 0.01 25.50-26.50 0.7 22,955.2 100.0
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PARK - TerrainCalculation: Park Gori II 5wtg's N149-4.5 Hub=105m 17.07.2019Site Data: A - WAsP Gori II
Obstacles:
0 Obstacles used
Roughness:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\ROUGHNESSLINE_ONLINEDATA_1.wpoMin X: 398,219, Max X: 428,401, Min Y: 4,642,241, Max Y: 4,671,415, Width: 30,182 m, Height: 29,175 m
Orography:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\CONTOURLINE_ONLINEDATA_0.wpoMin X: 402,913, Max X: 423,154, Min Y: 4,646,647, Max Y: 4,666,294, Width: 20,242 m, Height: 19,648 m
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PARK - Wind Data AnalysisCalculation: Park Gori II 5wtg's N149-4.5 Hub=105m 17.07.2019Wind data: A - WAsP Gori II; Hub height: 91.5Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.18 2.28 0.908 0.6 2.80 0.865 0.9 1 NNE 2.43 2.45 0.982 0.1 2.11 0.904 0.2 2 ENE 4.22 3.95 1.225 1.3 3.07 1.031 0.8 3 E 9.10 8.09 2.725 11.9 9.73 2.648 9.3 4 ESE 9.50 8.48 3.037 32.0 10.19 3.016 30.4 5 SSE 7.98 7.06 2.209 6.0 9.44 2.549 10.1 6 S 4.84 4.49 1.275 0.1 8.11 1.983 1.0 7 SSW 4.08 3.95 1.088 0.2 4.94 1.131 0.1 8 WSW 6.26 5.68 1.451 2.9 4.72 1.121 1.7 9 W 10.68 9.54 2.971 28.5 11.28 2.953 25.210 WNW 9.72 8.62 2.447 14.0 10.72 2.556 16.511 NNW 5.59 5.17 1.287 2.3 8.56 1.813 3.9All 9.46 8.40 2.525 100.0 10.17 2.524 100.0
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PARK - Wind Data AnalysisCalculation: Park Gori II 5wtg's N149-4.5 Hub=105m 17.07.2019Wind data: A - WAsP Gori II; Hub height: 105.0Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.27 2.36 0.916 0.6 2.91 0.869 0.9 1 NNE 2.52 2.53 0.990 0.1 2.19 0.908 0.2 2 ENE 4.37 4.08 1.236 1.3 3.19 1.037 0.8 3 E 9.39 8.35 2.752 11.9 10.08 2.662 9.3 4 ESE 9.79 8.75 3.068 32.1 10.55 3.032 30.4 5 SSE 8.22 7.28 2.229 6.0 9.78 2.562 10.1 6 S 5.04 4.66 1.291 0.1 8.41 1.994 1.0 7 SSW 4.22 4.08 1.096 0.2 5.12 1.137 0.1 8 WSW 6.47 5.86 1.463 2.9 4.90 1.126 1.7 9 W 10.96 9.79 2.998 28.4 11.62 2.973 25.210 WNW 9.99 8.86 2.471 14.0 11.04 2.574 16.511 NNW 5.77 5.33 1.295 2.3 8.84 1.825 3.9All 9.73 8.64 2.549 100.0 10.51 2.540 100.0
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PARK - Park power curveCalculation: Park Gori II 5wtg's N149-4.5 Hub=105m 17.07.2019
PowerWind Free Park N NNE ENE E ESE SSE S SSW WSW W WNW NNWspeed WTGs WTGs[m/s] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW]
0.5 0 0 0 0 0 0 0 0 0 0 0 0 0 01.5 0 0 0 0 0 0 0 0 0 0 0 0 0 02.5 0 0 0 0 0 0 0 0 0 0 0 0 0 03.5 507 456 340 326 437 463 452 406 329 324 437 468 490 3924.5 1,777 1,661 1,361 1,360 1,613 1,680 1,664 1,489 1,342 1,361 1,613 1,691 1,743 1,4645.5 3,616 3,421 2,919 2,919 3,341 3,453 3,423 3,129 2,887 2,921 3,341 3,472 3,559 3,0906.5 6,125 5,819 5,038 5,039 5,696 5,870 5,820 5,369 4,990 5,042 5,697 5,900 6,035 5,3057.5 9,465 9,007 7,843 7,842 8,822 9,082 9,008 8,339 7,769 7,844 8,823 9,128 9,330 8,2448.5 13,702 13,095 11,549 11,532 12,857 13,198 13,090 12,204 11,444 11,534 12,858 13,260 13,528 12,0839.5 18,129 17,546 15,905 15,892 17,290 17,645 17,599 16,532 15,802 15,893 17,289 17,696 17,974 16,433
10.5 20,998 20,651 19,547 19,562 20,489 20,719 20,722 19,881 19,476 19,548 20,487 20,743 20,918 19,84611.5 22,282 22,156 21,723 21,726 22,094 22,182 22,194 21,835 21,672 21,683 22,093 22,190 22,256 21,82812.5 22,500 22,487 22,424 22,427 22,481 22,492 22,499 22,424 22,407 22,405 22,480 22,491 22,499 22,42913.5 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,499 22,498 22,500 22,500 22,500 22,50014.5 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,50015.5 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,50016.5 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,50017.5 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,50018.5 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,50019.5 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,500 22,50020.5 22,275 22,293 22,342 22,341 22,300 22,289 22,293 22,320 22,349 22,345 22,301 22,289 22,281 22,32421.5 20,655 20,700 20,828 20,830 20,720 20,693 20,695 20,780 20,837 20,830 20,720 20,689 20,667 20,78822.5 18,880 18,919 19,025 19,026 18,935 18,912 18,916 18,985 19,032 19,027 18,935 18,908 18,890 18,99123.5 17,100 17,134 17,225 17,225 17,147 17,128 17,133 17,190 17,231 17,226 17,147 17,124 17,109 17,19524.5 15,325 15,354 15,431 15,431 15,365 15,349 15,355 15,402 15,436 15,432 15,365 15,346 15,333 15,40625.5 13,525 13,543 13,614 13,614 13,558 13,542 13,531 13,589 13,618 13,614 13,558 13,542 13,531 13,59326.5 0 0 0 0 0 0 0 0 0 0 0 0 0 027.5 0 0 0 0 0 0 0 0 0 0 0 0 0 028.5 0 0 0 0 0 0 0 0 0 0 0 0 0 029.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Description:The park power curve is similar to a WTG power curve, meaning that when a given wind speed appears in front of the park with same speed in the entire wind farm area(before influence from the park), the output from the park can be found in the park power curve. Another way to say this: The park power curve includes wake losses,but do NOT include terrain given variations in the wind speed over the park area.Measuring a park power curve is not as simple as measuring a WTG power curve due to the fact that the park power curve depends on the wind direction and that thesame wind speed normally will not appear for the entire park area at the same time (only in very flat non-complex terrain). The idea with this version of the park powercurve is not to use it for validation based on measurements. This would require at least 2 measurement masts at two sides of the park, unless only a few directionsectors should be tested, AND non complex terrain (normally only useable off shore). Another park power curve version for complex terrain is available in windPRO.
The park power curve can be used for:1. Forecast systems, based on more rough (approximated) wind data, the park power curve would be an efficient way to make the connection from wind speed
(and direction) to power.2. Construction of duration curves, telling how often a given power output will appear, the park power curve can be used together with the average wind
distribution for the Wind farm area in hub height. The average wind distribution can eventually be obtained based on the Weibull parameters for each WTGposition. These are found at print menu: >Result to file< in the >Park result< which can be saved to file or copied to clipboard and pasted in Excel.
3. Calculation of wind energy index based on the PARK production (see below).4. Estimation of the expected PARK production for an existing wind farm based on wind measurements at minimum 2 measurement masts at two sides of wind
farm. The masts must be used for obtaining the free wind speed. The free wind speed is used in the simulation of expected energy production with the PARKpower curve. This procedure will only work suitable in non complex terrains. For complex terrain another park power curve calculation is available in windPRO(PPV-model).
Note:From the >Result to file< the >Wind Speeds Inside Wind farm< is also available. These can (e.g. via Excel) be used for extracting the wake induced reductions inmeasured wind speed.
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PARK - WTG distancesCalculation: Park Gori II 5wtg's N149-4.5 Hub=105m 17.07.2019
Scale 1:100,000New WTG Existing WTG
WTG distancesZ Nearest WTG Z Horizontal Distance in
distance rotor diameters[m] [m] [m]
1 840.0 3 815.3 337 2.32 794.7 3 815.3 353 2.43 815.3 1 840.0 337 2.34 753.1 5 775.6 506 3.45 775.6 4 753.1 506 3.46 864.2 11 850.8 286 2.47 819.2 8 822.3 358 3.18 822.3 7 819.2 358 3.19 830.9 10 835.0 455 3.9
10 835.0 11 850.8 374 3.211 850.8 6 864.2 286 2.4
Min 753.1 753.1 286 2.3Max 864.2 864.2 506 3.9
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PARK - Wind statistics infoCalculation: Park Gori II 5wtg's N149-4.5 Hub=105m 17.07.2019Main data for wind statisticFile E:\work\WindPRO Data\Projects\Gori II\GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wwsName Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3))Country GeorgiaSource USERMast coordinates UTM (north)-WGS84 Zone: 38 East: 420,904 North: 4,653,454Created 12/07/2019Edited 12/07/2019Sectors 12WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Displacement height None
CommentsFrom MCP
Additional info for wind statisticBased on measurement height 80.0 mBase elevation for measurement mast 845.6 m
Long term correction informationMethod Matrix MCPSource data MERRA_basic_E44.002_N42.000 (3)Distance to source data 4.8 kmLong term period from 01/01/1989Long term period to 01/03/2016Concurrent period from 07/08/2013Concurrent period to 01/03/2016Concurrent data records 10255Concurrent record interval 60 minutesConcurrent data recovery 67.1 %
Number of years with long term data 27.2 yearsNumber of months with concurrent data 14.0 Months
Correlation test based on Concurrent monthly windindicesPower curve used for index Simple power curve truncated at: 14.0 m/sData availability demand for inclusion of month 60 %Number of months 20r^2 - wind index 0.7892r - wind index 0.8884s - wind index 6.1510
NoteTo get the most correct calculation results, wind statistics shall be calculated with the SAME model and model parameters, as currently chosen incalculation. For WAsP versions before 10.0, the model is unchanged, but thereafter more model changes affecting the wind statistic is seen.Likewise WAsP CFD should always use WAsP CFD calculated wind statistics.
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PARK - RIX calculationCalculation: Park Gori II 5wtg's N149-4.5 Hub=105m 17.07.2019Assumptions
Radius for calculation 3,500 mSteepness threshold 30.0 % / 17 °Directional weight Equally distributedRIX for wind statistic Calculated on windstatistic position. If not available Site data position is usedHeight contours used HCLAlfa 1.0No RIX correction for delta RIX in interval -5.0 % - 5.0 %
Reference sitesTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Site Data/Wind statistics Reference site RIX[%]
A 420,904 4,653,454 Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)) 1.8
WTG sitesUTM (north)-WGS84 Zone: 38
Links Easting Northing Z Reference site RIX WTG RIX Delta RIX (WTG site - Reference site) RIX correction[m] [%] [%] [%] [MWh/y]
1 A 416,358 4,656,168 840.0 1.8 0.0 -1.8 0.002 A 416,443 4,655,527 794.7 1.8 0.0 -1.8 0.003 A 416,519 4,655,872 815.3 1.8 0.0 -1.8 0.004 A 415,693 4,654,652 753.1 1.8 0.0 -1.8 0.005 A 416,173 4,654,811 775.6 1.8 0.0 -1.7 0.006 A 421,119 4,653,602 864.2 1.8 2.1 0.3 0.007 A 421,280 4,651,670 819.2 1.8 1.4 -0.4 0.008 A 421,419 4,652,000 822.3 1.8 1.3 -0.5 0.009 A 421,118 4,652,595 830.9 1.8 1.1 -0.7 0.00
10 A 420,938 4,653,012 835.0 1.8 1.3 -0.5 0.0011 A 421,153 4,653,318 850.8 1.8 1.6 -0.2 0.00
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PARK - RIX calculationCalculation: Park Gori II 5wtg's N149-4.5 Hub=105m 17.07.2019
Latest research /Risø/ show that the threshold in RIX calculation typically work best with 40% (new default), and that delta Rixwithin +/- 5% should not give corrections. Cross predictions based on more mast can fine tune the threshold, see Cross predictortool in windPRO Meteo Analyzer. In windPRO LOSS&&UNCERTAINTY module, RIX correction can be calculated automatically as abias based on most recent recommended correction formulas, which can be found in EWEC2006 && 08 papers on Rix from Risø,see extract below:
The main conclusion based on use of the RIX method is that if both reference site (measurement mast) and predicted site (WTG)are equally rugged (Delta RIX < 5%), very small calculation errors are expected.If reference site (measurement mast) is very rugged, e.g. RIX = 0.2 and predicted site (WTG) are less rugged (e.g. RIX = 0),Delta RIX will be -0.2 and according to the graph, 30% too low wind speed prediction at WTG site could be expected. This couldlead to around 60%*) too low calculated energy production.If the reference site is less rugged, e.g. RIX = 0, and the predicted site (WTG) are very rugged (e.g. RIX = 0.2), Delta RIX will be+0.2, and according to the graph, 30% too high wind speed prediction at WTG site could be expected. This could lead to around60%*) too high calculated energy production.*) Doubling of energy prediction error based on mean wind speed error is a rough conversion, which holds for wind speedsaround 8 m/s. At 6-7 m/s tripling is more right, while only 1.5 factors should be used for 9 m/s, see graph below based on atypical WTG.
Source: EWEC06 paper:IMPROVING WAsP PREDICTIONS IN (TOO) COMPLEX TERRAINNiels G. Mortensen, Anthony J. Bowen and Ioannis AntoniouWind Energy Department, Risø National Laboratory
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PARK - MapCalculation: Park Gori II 5wtg's N149-4.5 Hub=105m 17.07.2019
0 500 1000 1500 2000 mMap: BigGameHunter , Print scale 1:40,000, Map center UTM (north)-WGS84 Zone: 38 East: 418,556 North: 4,653,919
New WTG Existing WTG
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PARK - Main ResultCalculation: Park Gori II 5wtg's SWT-DD-142-4.1 Hub=109m 12.07.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 109.0 m = 1.120 kg/m³ -> 91.5 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Site Data
Key results for height 109.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent distribution roughness
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 5,038 8.7 1.9
Calculated Annual Energy for Wind FarmSpecific results¤)
WTG combination Result GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speedPARK Free WTGs factor result hours @hub height
[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s]Wind farm 100,631.0 102,600.8 1.9 56.0 20,126.2 4,909 8.6¤) Based on wake reduced results, but no other losses included
*) Included in wake losses is influence from 6 WTG(s) in the neighborhood, which has status as "Reference WTGs", see separate report to identify these.
Calculated Annual Energy for each of 5 new WTGs with total 20.5 MW rated powerWTG type Power curve Annual Energy
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Result Wake Free rated diameter height loss mean
wind speed
[kW] [m] [m] [MWh/y] [%] [m/s]1 A Yes Siemens SWT-DD-142-4,100 4,100 142.0 109.0 EMD Mode 1 - Calculated - Std. 107dB rev1 - 6-2018 20,945.4 2.8 9.012 A Yes Siemens SWT-DD-142-4,100 4,100 142.0 109.0 EMD Mode 1 - Calculated - Std. 107dB rev1 - 6-2018 20,078.3 0.8 8.533 A Yes Siemens SWT-DD-142-4,100 4,100 142.0 109.0 EMD Mode 1 - Calculated - Std. 107dB rev1 - 6-2018 20,248.1 1.4 8.654 A Yes Siemens SWT-DD-142-4,100 4,100 142.0 109.0 EMD Mode 1 - Calculated - Std. 107dB rev1 - 6-2018 19,657.8 1.6 8.435 A Yes Siemens SWT-DD-142-4,100 4,100 142.0 109.0 EMD Mode 1 - Calculated - Std. 107dB rev1 - 6-2018 19,701.3 3.0 8.56
Annual Energy results do not include any losses apart from wake losses. Additional losses and uncertainty must be considered for an investmentdecision.
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description
[m]1 New 416,358 4,656,168 840.0 Siemens SWT-DD-142 4100 142.0 !O! hub: 109.0 m (TOT: 180.0 m) (7)2 New 416,443 4,655,527 794.7 Siemens SWT-DD-142 4100 142.0 !O! hub: 109.0 m (TOT: 180.0 m) (8)3 New 416,519 4,655,872 815.3 Siemens SWT-DD-142 4100 142.0 !O! hub: 109.0 m (TOT: 180.0 m) (9)4 New 415,693 4,654,652 753.1 Siemens SWT-DD-142 4100 142.0 !O! hub: 109.0 m (TOT: 180.0 m) (10)5 New 416,173 4,654,811 775.6 Siemens SWT-DD-142 4100 142.0 !O! hub: 109.0 m (TOT: 180.0 m) (11)
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Project:
Gori II
PARK - Reference WTGsCalculation: Park Gori II 5wtg's SWT-DD-142-4.1 Hub=109m 12.07.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 109.0 m = 1.120 kg/m³ -> 91.5 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Existing WTGKey results for height 109.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent distribution roughness
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 5,038 8.7 1.9
Calculated Annual Energy for reference WTGsSpecific results Specific results
Calculated GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speed Actual wind Goodness Factorprod. without Free WTGs factor result hours @hub height corrected
new WTGs energy[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s] [MWh/y] [%]98,795.5 99,245.5 0.8 54.4 16,465.9 4,773 9.0 0.0
Calculated Annual Energy for each of 6 reference WTGs with total 20.7 MW rated powerWTG type Power curve
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Calculated Goodness rated diameter height prod. Factor
without new WTGs
[kW] [m] [m] [MWh/y] [%]6 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,887.8 07 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 15,756.9 08 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,157.4 09 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,495.5 0
10 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,396.5 011 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 17,101.4 0
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]6 421,119 4,653,602 864.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (1)7 421,280 4,651,670 819.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (2)8 421,419 4,652,000 822.3 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (3)9 421,118 4,652,595 830.9 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (4)
10 420,938 4,653,012 835.0 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (5)11 421,153 4,653,318 850.8 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (6)
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Project:
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PARK - Production AnalysisCalculation: Park Gori II 5wtg's SWT-DD-142-4.1 Hub=109m 12.07.2019 WTG: All new WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.118 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 63.9 14.9 357.2 10,707.3 30,125.8 4,225.6 84.7 52.9 1,735.7 30,652.3 13,111.6 971.5 92,103.5+Increase due to hills [MWh] 35.9 4.3 333.5 1,551.2 2,797.2 432.4 101.5 15.8 875.4 3,188.2 1,034.1 127.7 10,497.3-Decrease due to wake losses [MWh] 10.3 2.0 17.1 225.4 674.7 355.6 30.2 6.7 77.5 424.9 68.1 77.3 1,969.7Resulting energy [MWh] 89.5 17.2 673.5 12,033.1 32,248.3 4,302.3 156.1 62.1 2,533.6 33,415.7 14,077.6 1,021.9 100,631.0Specific energy [kWh/m²] 1,271Specific energy [kWh/kW] 4,909Increase due to hills [%] 56.1 28.9 93.4 14.5 9.3 10.2 119.9 29.9 50.4 10.4 7.9 13.1 11.40Decrease due to wake losses [%] 10.3 10.6 2.5 1.8 2.0 7.6 16.2 9.7 3.0 1.3 0.5 7.0 1.92Utilization [%] 23.8 27.1 26.2 28.3 29.4 27.7 23.0 20.5 22.2 23.6 24.3 21.1 26.0Operational [Hours/year] 56 12 139 1,049 2,684 516 26 17 323 2,407 1,177 198 8,605Full Load Equivalent [Hours/year] 4 1 33 587 1,573 210 8 3 124 1,630 687 50 4,909
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Project:
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PARK - Production AnalysisCalculation: Park Gori II 5wtg's SWT-DD-142-4.1 Hub=109m 12.07.2019WTG: All existing WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.118 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 41.5 12.3 275.4 9,755.1 23,431.9 2,991.1 27.4 37.0 1,394.9 27,396.4 10,983.1 743.0 77,089.1+Increase due to hills [MWh] 20.3 2.5 282.0 3,780.8 6,429.0 532.1 55.1 12.1 889.4 7,721.2 2,324.0 108.0 22,156.4-Decrease due to wake losses [MWh] 10.8 1.9 3.5 0.0 0.0 332.0 9.5 5.6 11.6 62.7 241.7 75.4 754.6Resulting energy [MWh] 51.0 12.9 553.8 13,535.9 29,860.9 3,191.1 73.1 43.5 2,272.7 35,054.9 13,065.4 775.6 98,490.9Specific energy [kWh/m²] 1,527Specific energy [kWh/kW] 4,758Increase due to hills [%] 48.9 20.0 102.4 38.8 27.4 17.8 201.0 32.7 63.8 28.2 21.2 14.5 28.74Decrease due to wake losses [%] 17.5 13.0 0.6 0.0 0.0 9.4 11.5 11.4 0.5 0.2 1.8 8.9 0.76Utilization [%] 24.2 27.5 27.6 29.9 32.2 30.4 27.7 22.7 24.4 24.3 25.1 23.1 27.3Operational [Hours/year] 50 13 130 1,183 2,598 470 15 16 306 2,498 1,146 183 8,608Full Load Equivalent [Hours/year] 2 1 27 654 1,443 154 4 2 110 1,693 631 37 4,758
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Project:
Gori II
PARK - Power Curve AnalysisCalculation: Park Gori II 5wtg's SWT-DD-142-4.1 Hub=109m 12.07.2019WTG: 1 - Siemens SWT-DD-142 4100 142.0 !O!, Hub height: 109.0 mName: Mode 1 - Calculated - Std. 107dB rev1 - 6-2018Source: Manufacturer
Source/Date Created by Created Edited Stop wind speed Power control CT curve type Generator type Specific power[m/s] kW/m²
11/06/2018 EMD 03/05/2017 11/06/2018 26.0 Pitch User defined Variable 0.26Power Curve Rev. 1.Siemens Wind Power and its affiliates reserve the right to change the above specifications without prior notice.
HP curve comparison - Note: For standard air density
Vmean [m/s] 5 6 7 8 9 10HP value Pitch, variable speed (2013) [MWh] 7,800 11,593 15,135 18,207 20,747 22,744Siemens SWT-DD-142 4100 142.0 !O! Mode 1 - Calculated - Std. 107dB rev1 - 6-2018 [MWh] 8,049 11,796 15,276 18,260 20,655 22,439Check value [%] -3 -2 -1 0 0 1The table shows comparison between annual energy production calculated on basis of simplified "HP-curves" which assume that all WTGs performs quite similar - only specific power loading(kW/m^2) and single/dual speed or stall/pitch decides the calculated values. Productions are without wake losses.For further details, ask at the Danish Energy Agency for project report J.nr. 51171/00-0016 or see windPRO manual chapter 3.5.2.The method is refined in EMD report "20 Detailed Case Studies comparing Project Design Calculations and actual Energy Productions for Wind Energy Projects worldwide", jan 2003.Use the table to evaluate if the given power curve is reasonable - if the check value are lower than -5%, the power curve probably is too optimistic due to uncertainty in power curvemeasurement.
Power curveOriginal data, Air density: 1.225 kg/m³Wind speed Power Cp Wind speed Ct curve
[m/s] [kW] [m/s]2.0 0.0 0.00 2.0 0.003.0 40.0 0.15 3.0 0.814.0 245.0 0.39 4.0 0.815.0 556.0 0.46 5.0 0.816.0 992.0 0.47 6.0 0.827.0 1,583.0 0.48 7.0 0.848.0 2,308.0 0.46 8.0 0.839.0 3,056.0 0.43 9.0 0.7510.0 3,698.0 0.38 10.0 0.6411.0 4,020.0 0.31 11.0 0.5112.0 4,092.0 0.24 12.0 0.3813.0 4,099.0 0.19 13.0 0.2914.0 4,100.0 0.15 14.0 0.2215.0 4,100.0 0.13 15.0 0.1816.0 4,100.0 0.10 16.0 0.1517.0 4,100.0 0.09 17.0 0.1218.0 4,100.0 0.07 18.0 0.1019.0 4,100.0 0.06 19.0 0.0920.0 4,100.0 0.05 20.0 0.0821.0 3,553.0 0.04 21.0 0.0622.0 3,007.0 0.03 22.0 0.0523.0 2,460.0 0.02 23.0 0.0424.0 1,913.0 0.01 24.0 0.0325.0 1,367.0 0.01 25.0 0.0226.0 820.0 0.00 26.0 0.01
Power, Efficiency and energy vs. wind speedData used in calculation, Air density: 1.108 kg/m³ New windPRO method(adjusted IEC method, improved to match turbine control) <RECOMMENDED>Wind speed Power Cp Interval Energy Acc.Energy Relative
[m/s] [kW] [m/s] [MWh] [MWh] [%]1.0 0.0 0.00 0.50- 1.50 0.0 0.0 0.02.0 0.0 0.00 1.50- 2.50 2.0 2.0 0.03.0 35.9 0.15 2.50- 3.50 23.1 25.1 0.14.0 217.2 0.39 3.50- 4.50 107.7 132.8 0.65.0 503.3 0.46 4.50- 5.50 302.0 434.8 2.16.0 903.3 0.48 5.50- 6.50 642.6 1,077.4 5.17.0 1,442.8 0.48 6.50- 7.50 1,151.5 2,228.9 10.68.0 2,109.8 0.47 7.50- 8.50 1,785.6 4,014.5 19.29.0 2,811.2 0.44 8.50- 9.50 2,400.1 6,414.7 30.610.0 3,434.2 0.39 9.50-10.50 2,805.5 9,220.2 44.011.0 3,850.7 0.33 10.50-11.50 2,842.4 12,062.6 57.612.0 4,044.7 0.27 11.50-12.50 2,525.9 14,588.6 69.713.0 4,093.6 0.21 12.50-13.50 2,038.5 16,627.0 79.414.0 4,099.2 0.17 13.50-14.50 1,529.1 18,156.1 86.715.0 4,100.0 0.14 14.50-15.50 1,075.3 19,231.5 91.816.0 4,100.0 0.11 15.50-16.50 711.8 19,943.3 95.217.0 4,100.0 0.10 16.50-17.50 445.0 20,388.3 97.318.0 4,100.0 0.08 17.50-18.50 263.7 20,652.0 98.619.0 4,100.0 0.07 18.50-19.50 148.9 20,800.9 99.320.0 4,100.0 0.06 19.50-20.50 78.9 20,879.8 99.721.0 3,553.0 0.04 20.50-21.50 37.7 20,917.5 99.922.0 3,007.0 0.03 21.50-22.50 16.5 20,934.0 99.923.0 2,460.0 0.02 22.50-23.50 7.0 20,941.1 100.024.0 1,913.0 0.02 23.50-24.50 2.9 20,944.0 100.025.0 1,367.0 0.01 24.50-25.50 1.1 20,945.1 100.026.0 820.0 0.01 25.50-26.50 0.3 20,945.4 100.0
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Project:
Gori II
PARK - TerrainCalculation: Park Gori II 5wtg's SWT-DD-142-4.1 Hub=109m 12.07.2019Site Data: A - WAsP Gori II
Obstacles:
0 Obstacles used
Roughness:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\ROUGHNESSLINE_ONLINEDATA_1.wpoMin X: 398,219, Max X: 428,401, Min Y: 4,642,241, Max Y: 4,671,415, Width: 30,182 m, Height: 29,175 m
Orography:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\CONTOURLINE_ONLINEDATA_0.wpoMin X: 402,913, Max X: 423,154, Min Y: 4,646,647, Max Y: 4,666,294, Width: 20,242 m, Height: 19,648 m
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Project:
Gori II
PARK - Wind Data AnalysisCalculation: Park Gori II 5wtg's SWT-DD-142-4.1 Hub=109m 12.07.2019 Wind data: A - WAsP Gori II; Hub height: 91.5Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.18 2.28 0.908 0.6 2.80 0.865 0.9 1 NNE 2.43 2.45 0.982 0.1 2.11 0.904 0.2 2 ENE 4.22 3.95 1.225 1.3 3.07 1.031 0.8 3 E 9.10 8.09 2.725 11.9 9.73 2.648 9.3 4 ESE 9.50 8.48 3.037 32.0 10.19 3.016 30.4 5 SSE 7.98 7.06 2.209 6.0 9.44 2.549 10.1 6 S 4.84 4.49 1.275 0.1 8.11 1.983 1.0 7 SSW 4.08 3.95 1.088 0.2 4.94 1.131 0.1 8 WSW 6.26 5.68 1.451 2.9 4.72 1.121 1.7 9 W 10.68 9.54 2.971 28.5 11.28 2.953 25.210 WNW 9.72 8.62 2.447 14.0 10.72 2.556 16.511 NNW 5.59 5.17 1.287 2.3 8.56 1.813 3.9All 9.46 8.40 2.525 100.0 10.17 2.524 100.0
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Project:
Gori II
PARK - Wind Data AnalysisCalculation: Park Gori II 5wtg's SWT-DD-142-4.1 Hub=109m 12.07.2019Wind data: A - WAsP Gori II; Hub height: 109.0Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.29 2.39 0.912 0.6 2.94 0.868 0.9 1 NNE 2.55 2.56 0.990 0.1 2.21 0.906 0.2 2 ENE 4.41 4.13 1.232 1.3 3.22 1.035 0.8 3 E 9.48 8.44 2.744 11.9 10.20 2.656 9.3 4 ESE 9.89 8.84 3.061 32.1 10.68 3.025 30.4 5 SSE 8.31 7.36 2.225 6.0 9.90 2.556 10.1 6 S 5.12 4.73 1.295 0.1 8.51 1.990 1.0 7 SSW 4.26 4.12 1.096 0.2 5.18 1.135 0.1 8 WSW 6.53 5.91 1.463 2.9 4.96 1.124 1.7 9 W 11.05 9.87 2.994 28.4 11.73 2.968 25.210 WNW 10.07 8.93 2.467 14.0 11.14 2.569 16.511 NNW 5.82 5.38 1.295 2.3 8.93 1.821 3.9All 9.83 8.72 2.545 100.0 10.62 2.537 100.0
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Project:
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PARK - Park power curveCalculation: Park Gori II 5wtg's SWT-DD-142-4.1 Hub=109m 12.07.2019
PowerWind Free Park N NNE ENE E ESE SSE S SSW WSW W WNW NNWspeed WTGs WTGs[m/s] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW]
0.5 0 0 0 0 0 0 0 0 0 0 0 0 0 01.5 0 0 0 0 0 0 0 0 0 0 0 0 0 02.5 84 79 71 72 79 80 76 74 70 72 79 81 83 733.5 596 547 441 428 531 555 537 498 428 423 532 561 581 4854.5 1,775 1,669 1,402 1,402 1,628 1,688 1,665 1,509 1,386 1,401 1,628 1,699 1,747 1,4885.5 3,481 3,298 2,839 2,846 3,225 3,330 3,294 3,025 2,813 2,846 3,225 3,349 3,433 2,9906.5 5,814 5,522 4,782 4,797 5,403 5,570 5,520 5,082 4,737 4,792 5,404 5,601 5,737 5,0237.5 8,842 8,421 7,324 7,348 8,242 8,489 8,432 7,758 7,258 7,338 8,243 8,532 8,731 7,6748.5 12,345 11,846 10,486 10,505 11,623 11,927 11,883 10,997 10,398 10,493 11,624 11,974 12,219 10,9049.5 15,766 15,298 13,957 13,957 15,086 15,379 15,349 14,421 13,873 13,944 15,086 15,421 15,656 14,346
10.5 18,582 18,247 17,227 17,212 18,091 18,311 18,300 17,556 17,147 17,182 18,088 18,335 18,505 17,51011.5 19,990 19,842 19,392 19,360 19,782 19,874 19,861 19,517 19,348 19,336 19,782 19,888 19,958 19,50212.5 20,390 20,362 20,271 20,259 20,354 20,370 20,367 20,283 20,254 20,245 20,353 20,372 20,384 20,28313.5 20,485 20,482 20,473 20,472 20,482 20,484 20,483 20,472 20,470 20,469 20,482 20,484 20,485 20,47314.5 20,498 20,498 20,497 20,497 20,498 20,498 20,498 20,497 20,497 20,497 20,498 20,498 20,498 20,49715.5 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,50016.5 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,50017.5 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,50018.5 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,50019.5 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,500 20,50020.5 19,133 19,198 19,377 19,377 19,225 19,186 19,195 19,314 19,389 19,378 19,225 19,179 19,148 19,32421.5 16,400 16,454 16,596 16,596 16,474 16,444 16,456 16,545 16,605 16,597 16,474 16,438 16,412 16,55322.5 13,668 13,713 13,824 13,823 13,727 13,703 13,718 13,783 13,831 13,825 13,727 13,698 13,677 13,79023.5 10,933 10,970 11,055 11,055 10,979 10,961 10,978 11,023 11,061 11,056 10,979 10,956 10,940 11,02924.5 8,200 8,230 8,292 8,291 8,235 8,222 8,241 8,268 8,296 8,292 8,235 8,218 8,206 8,27225.5 5,468 5,480 5,531 5,530 5,491 5,480 5,472 5,514 5,533 5,531 5,491 5,480 5,472 5,51726.5 0 0 0 0 0 0 0 0 0 0 0 0 0 027.5 0 0 0 0 0 0 0 0 0 0 0 0 0 028.5 0 0 0 0 0 0 0 0 0 0 0 0 0 029.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Description:The park power curve is similar to a WTG power curve, meaning that when a given wind speed appears in front of the park with same speed in the entire wind farm area(before influence from the park), the output from the park can be found in the park power curve. Another way to say this: The park power curve includes wake losses,but do NOT include terrain given variations in the wind speed over the park area.Measuring a park power curve is not as simple as measuring a WTG power curve due to the fact that the park power curve depends on the wind direction and that thesame wind speed normally will not appear for the entire park area at the same time (only in very flat non-complex terrain). The idea with this version of the park powercurve is not to use it for validation based on measurements. This would require at least 2 measurement masts at two sides of the park, unless only a few directionsectors should be tested, AND non complex terrain (normally only useable off shore). Another park power curve version for complex terrain is available in windPRO.
The park power curve can be used for:1. Forecast systems, based on more rough (approximated) wind data, the park power curve would be an efficient way to make the connection from wind speed
(and direction) to power.2. Construction of duration curves, telling how often a given power output will appear, the park power curve can be used together with the average wind
distribution for the Wind farm area in hub height. The average wind distribution can eventually be obtained based on the Weibull parameters for each WTGposition. These are found at print menu: >Result to file< in the >Park result< which can be saved to file or copied to clipboard and pasted in Excel.
3. Calculation of wind energy index based on the PARK production (see below).4. Estimation of the expected PARK production for an existing wind farm based on wind measurements at minimum 2 measurement masts at two sides of wind
farm. The masts must be used for obtaining the free wind speed. The free wind speed is used in the simulation of expected energy production with the PARKpower curve. This procedure will only work suitable in non complex terrains. For complex terrain another park power curve calculation is available in windPRO(PPV-model).
Note:From the >Result to file< the >Wind Speeds Inside Wind farm< is also available. These can (e.g. via Excel) be used for extracting the wake induced reductions inmeasured wind speed.
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Project:
Gori II
PARK - WTG distancesCalculation: Park Gori II 5wtg's SWT-DD-142-4.1 Hub=109m 12.07.2019
Scale 1:100,000New WTG Existing WTG
WTG distancesZ Nearest WTG Z Horizontal Distance in
distance rotor diameters[m] [m] [m]
1 840.0 3 815.3 337 2.42 794.7 3 815.3 353 2.53 815.3 1 840.0 337 2.44 753.1 5 775.6 506 3.65 775.6 4 753.1 506 3.66 864.2 11 850.8 286 2.47 819.2 8 822.3 358 3.18 822.3 7 819.2 358 3.19 830.9 10 835.0 455 3.9
10 835.0 11 850.8 374 3.211 850.8 6 864.2 286 2.4
Min 753.1 753.1 286 2.4Max 864.2 864.2 506 3.9
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PARK - Wind statistics infoCalculation: Park Gori II 5wtg's SWT-DD-142-4.1 Hub=109m 12.07.2019Main data for wind statisticFile E:\work\WindPRO Data\Projects\Gori II\GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wwsName Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3))Country GeorgiaSource USERMast coordinates UTM (north)-WGS84 Zone: 38 East: 420,904 North: 4,653,454Created 12/07/2019Edited 12/07/2019Sectors 12WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Displacement height None
CommentsFrom MCP
Additional info for wind statisticBased on measurement height 80.0 mBase elevation for measurement mast 845.6 m
Long term correction informationMethod Matrix MCPSource data MERRA_basic_E44.002_N42.000 (3)Distance to source data 4.8 kmLong term period from 01/01/1989Long term period to 01/03/2016Concurrent period from 07/08/2013Concurrent period to 01/03/2016Concurrent data records 10255Concurrent record interval 60 minutesConcurrent data recovery 67.1 %
Number of years with long term data 27.2 yearsNumber of months with concurrent data 14.0 Months
Correlation test based on Concurrent monthly windindicesPower curve used for index Simple power curve truncated at: 14.0 m/sData availability demand for inclusion of month 60 %Number of months 20r^2 - wind index 0.7892r - wind index 0.8884s - wind index 6.1510
NoteTo get the most correct calculation results, wind statistics shall be calculated with the SAME model and model parameters, as currently chosen incalculation. For WAsP versions before 10.0, the model is unchanged, but thereafter more model changes affecting the wind statistic is seen.Likewise WAsP CFD should always use WAsP CFD calculated wind statistics.
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PARK - RIX calculationCalculation: Park Gori II 5wtg's SWT-DD-142-4.1 Hub=109m 12.07.2019Assumptions
Radius for calculation 3,500 mSteepness threshold 30.0 % / 17 °Directional weight Equally distributedRIX for wind statistic Calculated on windstatistic position. If not available Site data position is usedHeight contours used HCLAlfa 1.0No RIX correction for delta RIX in interval -5.0 % - 5.0 %
Reference sitesTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Site Data/Wind statistics Reference site RIX[%]
A 420,904 4,653,454 Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)) 1.8
WTG sitesUTM (north)-WGS84 Zone: 38
Links Easting Northing Z Reference site RIX WTG RIX Delta RIX (WTG site - Reference site) RIX correction[m] [%] [%] [%] [MWh/y]
1 A 416,358 4,656,168 840.0 1.8 0.0 -1.8 0.002 A 416,443 4,655,527 794.7 1.8 0.0 -1.8 0.003 A 416,519 4,655,872 815.3 1.8 0.0 -1.8 0.004 A 415,693 4,654,652 753.1 1.8 0.0 -1.8 0.005 A 416,173 4,654,811 775.6 1.8 0.0 -1.7 0.006 A 421,119 4,653,602 864.2 1.8 2.1 0.3 0.007 A 421,280 4,651,670 819.2 1.8 1.4 -0.4 0.008 A 421,419 4,652,000 822.3 1.8 1.3 -0.5 0.009 A 421,118 4,652,595 830.9 1.8 1.1 -0.7 0.00
10 A 420,938 4,653,012 835.0 1.8 1.3 -0.5 0.0011 A 421,153 4,653,318 850.8 1.8 1.6 -0.2 0.00
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PARK - RIX calculationCalculation: Park Gori II 5wtg's SWT-DD-142-4.1 Hub=109m 12.07.2019
Latest research /Risø/ show that the threshold in RIX calculation typically work best with 40% (new default), and that delta Rixwithin +/- 5% should not give corrections. Cross predictions based on more mast can fine tune the threshold, see Cross predictortool in windPRO Meteo Analyzer. In windPRO LOSS&&UNCERTAINTY module, RIX correction can be calculated automatically as abias based on most recent recommended correction formulas, which can be found in EWEC2006 && 08 papers on Rix from Risø,see extract below:
The main conclusion based on use of the RIX method is that if both reference site (measurement mast) and predicted site (WTG)are equally rugged (Delta RIX < 5%), very small calculation errors are expected.If reference site (measurement mast) is very rugged, e.g. RIX = 0.2 and predicted site (WTG) are less rugged (e.g. RIX = 0),Delta RIX will be -0.2 and according to the graph, 30% too low wind speed prediction at WTG site could be expected. This couldlead to around 60%*) too low calculated energy production.If the reference site is less rugged, e.g. RIX = 0, and the predicted site (WTG) are very rugged (e.g. RIX = 0.2), Delta RIX will be+0.2, and according to the graph, 30% too high wind speed prediction at WTG site could be expected. This could lead to around60%*) too high calculated energy production.*) Doubling of energy prediction error based on mean wind speed error is a rough conversion, which holds for wind speedsaround 8 m/s. At 6-7 m/s tripling is more right, while only 1.5 factors should be used for 9 m/s, see graph below based on atypical WTG.
Source: EWEC06 paper:IMPROVING WAsP PREDICTIONS IN (TOO) COMPLEX TERRAINNiels G. Mortensen, Anthony J. Bowen and Ioannis AntoniouWind Energy Department, Risø National Laboratory
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PARK - MapCalculation: Park Gori II 5wtg's SWT-DD-142-4.1 Hub=109m 12.07.2019
0 500 1000 1500 2000 mMap: BigGameHunter , Print scale 1:40,000, Map center UTM (north)-WGS84 Zone: 38 East: 418,556 North: 4,653,919
New WTG Existing WTG
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PARK - Main ResultCalculation: Park Gori II 5wtg's V150-4.2 Hub=105m 17.07.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 105.0 m = 1.121 kg/m³ -> 91.5 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Site Data
Key results for height 105.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent distribution roughness
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 4,896 8.6 1.9
Calculated Annual Energy for Wind FarmSpecific results¤)
WTG combination Result GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speedPARK Free WTGs factor result hours @hub height
[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s]Wind farm 106,328.1 108,369.9 1.9 57.8 21,265.6 5,063 8.6¤) Based on wake reduced results, but no other losses included
*) Included in wake losses is influence from 6 WTG(s) in the neighborhood, which has status as "Reference WTGs", see separate report to identify these.
Calculated Annual Energy for each of 5 new WTGs with total 21.0 MW rated powerWTG type Power curve Annual Energy
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Result Wake Free rated diameter height loss mean
wind speed
[kW] [m] [m] [MWh/y] [%] [m/s]1 A Yes VESTAS V150-4.2-4,200 4,200 150.0 105.0 EMD Level 0 - Calculated - Modes PO1 & PO1-0S - 27-07-2017 22,130.1 2.8 8.942 A Yes VESTAS V150-4.2-4,200 4,200 150.0 105.0 EMD Level 0 - Calculated - Modes PO1 & PO1-0S - 27-07-2017 21,206.9 0.8 8.453 A Yes VESTAS V150-4.2-4,200 4,200 150.0 105.0 EMD Level 0 - Calculated - Modes PO1 & PO1-0S - 27-07-2017 21,379.1 1.4 8.564 A Yes VESTAS V150-4.2-4,200 4,200 150.0 105.0 EMD Level 0 - Calculated - Modes PO1 & PO1-0S - 27-07-2017 20,777.0 1.5 8.355 A Yes VESTAS V150-4.2-4,200 4,200 150.0 105.0 EMD Level 0 - Calculated - Modes PO1 & PO1-0S - 27-07-2017 20,835.1 2.9 8.48
Annual Energy results do not include any losses apart from wake losses. Additional losses and uncertainty must be considered for an investmentdecision.
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description
[m]1 New 416,358 4,656,168 840.0 VESTAS V150-4.2 4200 150.0 !O! hub: 105.0 m (TOT: 180.0 m) (12)2 New 416,443 4,655,527 794.7 VESTAS V150-4.2 4200 150.0 !O! hub: 105.0 m (TOT: 180.0 m) (13)3 New 416,519 4,655,872 815.3 VESTAS V150-4.2 4200 150.0 !O! hub: 105.0 m (TOT: 180.0 m) (14)4 New 415,693 4,654,652 753.1 VESTAS V150-4.2 4200 150.0 !O! hub: 105.0 m (TOT: 180.0 m) (15)5 New 416,173 4,654,811 775.6 VESTAS V150-4.2 4200 150.0 !O! hub: 105.0 m (TOT: 180.0 m) (16)
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PARK - Reference WTGsCalculation: Park Gori II 5wtg's V150-4.2 Hub=105m 17.07.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 105.0 m = 1.121 kg/m³ -> 91.5 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Existing WTGKey results for height 105.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent distribution roughness
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 4,896 8.6 1.9
Calculated Annual Energy for reference WTGsSpecific results Specific results
Calculated GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speed Actual wind Goodness Factorprod. without Free WTGs factor result hours @hub height corrected
new WTGs energy[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s] [MWh/y] [%]98,795.5 99,245.5 0.8 54.4 16,465.9 4,773 9.0 0.0
Calculated Annual Energy for each of 6 reference WTGs with total 20.7 MW rated powerWTG type Power curve
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Calculated Goodness rated diameter height prod. Factor
without new WTGs
[kW] [m] [m] [MWh/y] [%]6 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,887.8 07 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 15,756.9 08 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,157.4 09 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,495.5 0
10 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,396.5 011 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 17,101.4 0
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]6 421,119 4,653,602 864.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (1)7 421,280 4,651,670 819.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (2)8 421,419 4,652,000 822.3 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (3)9 421,118 4,652,595 830.9 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (4)
10 420,938 4,653,012 835.0 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (5)11 421,153 4,653,318 850.8 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (6)
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PARK - Production AnalysisCalculation: Park Gori II 5wtg's V150-4.2 Hub=105m 17.07.2019WTG: All new WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.118 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 66.8 15.6 375.0 11,344.4 31,866.1 4,462.2 89.7 55.5 1,836.4 32,378.5 13,836.0 1,022.1 97,348.3+Increase due to hills [MWh] 38.5 4.6 359.6 1,640.5 2,938.7 459.8 109.5 17.1 938.4 3,293.5 1,085.1 136.4 11,021.6-Decrease due to wake losses [MWh] 11.2 2.2 18.3 235.1 712.3 354.3 32.1 7.2 81.2 429.7 79.2 79.0 2,041.8Resulting energy [MWh] 94.2 18.0 716.3 12,749.8 34,092.4 4,567.6 167.1 65.4 2,693.6 35,242.3 14,841.9 1,079.5 106,328.1Specific energy [kWh/m²] 1,203Specific energy [kWh/kW] 5,063Increase due to hills [%] 57.6 29.9 95.9 14.5 9.2 10.3 122.0 30.7 51.1 10.2 7.8 13.3 11.32Decrease due to wake losses [%] 10.6 11.1 2.5 1.8 2.0 7.2 16.1 9.9 2.9 1.2 0.5 6.8 1.88Utilization [%] 23.0 26.3 25.5 27.7 28.7 27.3 22.5 20.0 21.6 22.9 23.6 20.6 25.3Operational [Hours/year] 56 12 140 1,051 2,681 515 27 17 324 2,405 1,175 198 8,600Full Load Equivalent [Hours/year] 4 1 34 607 1,623 218 8 3 128 1,678 707 51 5,063
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PARK - Production AnalysisCalculation: Park Gori II 5wtg's V150-4.2 Hub=105m 17.07.2019WTG: All existing WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.118 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 41.5 12.3 275.4 9,755.1 23,431.9 2,991.1 27.4 37.0 1,394.9 27,396.4 10,983.1 743.0 77,089.1+Increase due to hills [MWh] 20.3 2.5 282.0 3,780.8 6,429.0 532.1 55.1 12.1 889.4 7,721.2 2,324.0 108.0 22,156.4-Decrease due to wake losses [MWh] 10.8 1.9 3.5 0.0 0.0 332.0 9.5 5.6 11.6 59.8 235.3 75.4 745.3Resulting energy [MWh] 51.0 12.9 553.8 13,535.9 29,860.9 3,191.1 73.1 43.5 2,272.7 35,057.8 13,071.9 775.5 98,500.2Specific energy [kWh/m²] 1,527Specific energy [kWh/kW] 4,758Increase due to hills [%] 48.9 20.0 102.4 38.8 27.4 17.8 201.0 32.7 63.8 28.2 21.2 14.5 28.74Decrease due to wake losses [%] 17.5 13.0 0.6 0.0 0.0 9.4 11.5 11.4 0.5 0.2 1.8 8.9 0.75Utilization [%] 24.2 27.5 27.6 29.9 32.2 30.4 27.7 22.7 24.4 24.3 25.1 23.1 27.3Operational [Hours/year] 50 13 130 1,183 2,598 470 15 16 306 2,498 1,146 183 8,608Full Load Equivalent [Hours/year] 2 1 27 654 1,443 154 4 2 110 1,694 631 37 4,758
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PARK - Power Curve AnalysisCalculation: Park Gori II 5wtg's V150-4.2 Hub=105m 17.07.2019WTG: 1 - VESTAS V150-4.2 4200 150.0 !O!, Hub height: 105.0 mName: Level 0 - Calculated - Modes PO1 & PO1-0S - 27-07-2017Source: Manufacturer
Source/Date Created by Created Edited Stop wind speed Power control CT curve type Generator type Specific power[m/s] kW/m²
27/07/2017 EMD 10/08/2017 10/08/2017 22.5 Pitch User defined Variable 0.24Document no.: DMS 0067-7067 V04.IEC S (HH 105 & 155 m)DiBT WZ2(S) (HH 123 & 166 m)
HP curve comparison - Note: For standard air density
Vmean [m/s] 5 6 7 8 9 10HP value Pitch, variable speed (2013) [MWh] 8,530 12,511 16,163 19,289 21,849 23,843VESTAS V150-4.2 4200 150.0 !O! Level 0 - Calculated - Modes PO1 & PO1-0S - 27-07-2017 [MWh] 8,686 12,685 16,332 19,399 21,798 23,511Check value [%] -2 -1 -1 -1 0 1The table shows comparison between annual energy production calculated on basis of simplified "HP-curves" which assume that all WTGs performs quite similar - only specific power loading(kW/m^2) and single/dual speed or stall/pitch decides the calculated values. Productions are without wake losses.For further details, ask at the Danish Energy Agency for project report J.nr. 51171/00-0016 or see windPRO manual chapter 3.5.2.The method is refined in EMD report "20 Detailed Case Studies comparing Project Design Calculations and actual Energy Productions for Wind Energy Projects worldwide", jan 2003.Use the table to evaluate if the given power curve is reasonable - if the check value are lower than -5%, the power curve probably is too optimistic due to uncertainty in power curvemeasurement.
Power curveOriginal data, Air density: 1.225 kg/m³Wind speed Power Cp Wind speed Ct curve
[m/s] [kW] [m/s]3.0 78.0 0.27 3.0 1.003.5 172.0 0.37 3.5 0.924.0 287.0 0.41 4.0 0.864.5 426.0 0.43 4.5 0.855.0 601.0 0.44 5.0 0.845.5 814.0 0.45 5.5 0.836.0 1,069.0 0.46 6.0 0.826.5 1,367.0 0.46 6.5 0.827.0 1,717.0 0.46 7.0 0.817.5 2,110.0 0.46 7.5 0.798.0 2,546.0 0.46 8.0 0.788.5 3,002.0 0.45 8.5 0.749.0 3,428.0 0.43 9.0 0.689.5 3,773.0 0.41 9.5 0.6110.0 4,012.0 0.37 10.0 0.5310.5 4,131.0 0.33 10.5 0.4611.0 4,186.0 0.29 11.0 0.3911.5 4,198.0 0.26 11.5 0.3312.0 4,200.0 0.22 12.0 0.2912.5 4,200.0 0.20 12.5 0.2513.0 4,200.0 0.18 13.0 0.2213.5 4,200.0 0.16 13.5 0.2014.0 4,200.0 0.14 14.0 0.1814.5 4,200.0 0.13 14.5 0.1615.0 4,200.0 0.11 15.0 0.1415.5 4,200.0 0.10 15.5 0.1316.0 4,200.0 0.09 16.0 0.1216.5 4,200.0 0.09 16.5 0.1117.0 4,200.0 0.08 17.0 0.1017.5 4,200.0 0.07 17.5 0.0918.0 4,200.0 0.07 18.0 0.0818.5 4,200.0 0.06 18.5 0.0819.0 4,200.0 0.06 19.0 0.0719.5 4,200.0 0.05 19.5 0.0720.0 4,200.0 0.05 20.0 0.0620.5 4,200.0 0.05 20.5 0.0621.0 4,200.0 0.04 21.0 0.0521.5 4,200.0 0.04 21.5 0.0522.0 4,200.0 0.04 22.0 0.0522.5 4,200.0 0.03 22.5 0.05
Power, Efficiency and energy vs. wind speedData used in calculation, Air density: 1.109 kg/m³ New windPRO method(adjusted IEC method, improved to match turbine control) <RECOMMENDED>Wind speed Power Cp Interval Energy Acc.Energy Relative
[m/s] [kW] [m/s] [MWh] [MWh] [%]1.0 0.0 0.00 0.50- 1.50 0.0 0.0 0.02.0 0.0 0.00 1.50- 2.50 0.0 0.0 0.03.0 59.0 0.22 2.50- 3.50 27.3 27.3 0.14.0 255.9 0.41 3.50- 4.50 123.1 150.3 0.75.0 541.9 0.44 4.50- 5.50 328.6 478.9 2.26.0 965.7 0.46 5.50- 6.50 697.0 1,175.9 5.37.0 1,551.6 0.46 6.50- 7.50 1,262.4 2,438.3 11.08.0 2,309.3 0.46 7.50- 8.50 1,991.6 4,429.9 20.09.0 3,152.5 0.44 8.50- 9.50 2,704.9 7,134.8 32.210.0 3,818.4 0.39 9.50-10.50 3,102.5 10,237.3 46.311.0 4,126.2 0.32 10.50-11.50 3,021.0 13,258.3 59.912.0 4,194.2 0.25 11.50-12.50 2,596.4 15,854.7 71.613.0 4,200.0 0.20 12.50-13.50 2,053.6 17,908.3 80.914.0 4,200.0 0.16 13.50-14.50 1,519.6 19,427.9 87.815.0 4,200.0 0.13 14.50-15.50 1,056.0 20,483.9 92.616.0 4,200.0 0.10 15.50-16.50 690.6 21,174.5 95.717.0 4,200.0 0.09 16.50-17.50 426.4 21,600.9 97.618.0 4,200.0 0.07 17.50-18.50 249.6 21,850.5 98.719.0 4,200.0 0.06 18.50-19.50 139.3 21,989.8 99.420.0 4,200.0 0.05 19.50-20.50 74.7 22,064.5 99.721.0 4,200.0 0.05 20.50-21.50 38.9 22,103.4 99.922.0 4,200.0 0.04 21.50-22.50 19.9 22,123.3 100.023.0 0.0 0.00 22.50-23.50 6.7 22,130.1 100.0
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PARK - TerrainCalculation: Park Gori II 5wtg's V150-4.2 Hub=105m 17.07.2019Site Data: A - WAsP Gori II
Obstacles:
0 Obstacles used
Roughness:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\ROUGHNESSLINE_ONLINEDATA_1.wpoMin X: 398,219, Max X: 428,401, Min Y: 4,642,241, Max Y: 4,671,415, Width: 30,182 m, Height: 29,175 m
Orography:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\CONTOURLINE_ONLINEDATA_0.wpoMin X: 402,913, Max X: 423,154, Min Y: 4,646,647, Max Y: 4,666,294, Width: 20,242 m, Height: 19,648 m
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PARK - Wind Data AnalysisCalculation: Park Gori II 5wtg's V150-4.2 Hub=105m 17.07.2019Wind data: A - WAsP Gori II; Hub height: 91.5Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.18 2.28 0.908 0.6 2.80 0.865 0.9 1 NNE 2.43 2.45 0.982 0.1 2.11 0.904 0.2 2 ENE 4.22 3.95 1.225 1.3 3.07 1.031 0.8 3 E 9.10 8.09 2.725 11.9 9.73 2.648 9.3 4 ESE 9.50 8.48 3.037 32.0 10.19 3.016 30.4 5 SSE 7.98 7.06 2.209 6.0 9.44 2.549 10.1 6 S 4.84 4.49 1.275 0.1 8.11 1.983 1.0 7 SSW 4.08 3.95 1.088 0.2 4.94 1.131 0.1 8 WSW 6.26 5.68 1.451 2.9 4.72 1.121 1.7 9 W 10.68 9.54 2.971 28.5 11.28 2.953 25.210 WNW 9.72 8.62 2.447 14.0 10.72 2.556 16.511 NNW 5.59 5.17 1.287 2.3 8.56 1.813 3.9All 9.46 8.40 2.525 100.0 10.17 2.524 100.0
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PARK - Wind Data AnalysisCalculation: Park Gori II 5wtg's V150-4.2 Hub=105m 17.07.2019Wind data: A - WAsP Gori II; Hub height: 105.0Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.27 2.36 0.916 0.6 2.91 0.869 0.9 1 NNE 2.52 2.53 0.990 0.1 2.19 0.908 0.2 2 ENE 4.37 4.08 1.236 1.3 3.19 1.037 0.8 3 E 9.39 8.35 2.752 11.9 10.08 2.662 9.3 4 ESE 9.79 8.75 3.068 32.1 10.55 3.032 30.4 5 SSE 8.22 7.28 2.229 6.0 9.78 2.562 10.1 6 S 5.04 4.66 1.291 0.1 8.41 1.994 1.0 7 SSW 4.22 4.08 1.096 0.2 5.12 1.137 0.1 8 WSW 6.47 5.86 1.463 2.9 4.90 1.126 1.7 9 W 10.96 9.79 2.998 28.4 11.62 2.973 25.210 WNW 9.99 8.86 2.471 14.0 11.04 2.574 16.511 NNW 5.77 5.33 1.295 2.3 8.84 1.825 3.9All 9.73 8.64 2.549 100.0 10.51 2.540 100.0
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PARK - Park power curveCalculation: Park Gori II 5wtg's V150-4.2 Hub=105m 17.07.2019
PowerWind Free Park N NNE ENE E ESE SSE S SSW WSW W WNW NNWspeed WTGs WTGs[m/s] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW]
0.5 0 0 0 0 0 0 0 0 0 0 0 0 0 01.5 0 0 0 0 0 0 0 0 0 0 0 0 0 02.5 0 0 0 0 0 0 0 0 0 0 0 0 0 03.5 754 687 516 501 655 694 692 605 504 502 656 700 731 5874.5 1,928 1,814 1,507 1,502 1,764 1,832 1,821 1,637 1,491 1,506 1,764 1,842 1,893 1,6135.5 3,691 3,492 2,978 2,973 3,408 3,523 3,496 3,202 2,945 2,975 3,408 3,542 3,630 3,1596.5 6,209 5,889 5,070 5,061 5,757 5,940 5,894 5,426 5,017 5,065 5,757 5,971 6,111 5,3587.5 9,597 9,127 7,923 7,909 8,934 9,203 9,133 8,444 7,845 7,914 8,935 9,249 9,456 8,3458.5 13,725 13,132 11,581 11,564 12,888 13,230 13,145 12,231 11,480 11,573 12,889 13,288 13,553 12,1149.5 17,673 17,176 15,772 15,743 16,970 17,267 17,210 16,300 15,677 15,738 16,969 17,312 17,545 16,223
10.5 20,131 19,897 19,169 19,146 19,805 19,949 19,928 19,398 19,105 19,113 19,802 19,966 20,078 19,37711.5 20,894 20,843 20,685 20,678 20,825 20,856 20,851 20,724 20,658 20,653 20,825 20,860 20,884 20,72212.5 20,996 20,993 20,983 20,983 20,992 20,994 20,995 20,983 20,978 20,977 20,992 20,994 20,996 20,98413.5 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,00014.5 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,00015.5 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,00016.5 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,00017.5 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,00018.5 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,00019.5 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,00020.5 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,00021.5 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,00022.5 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,00023.5 0 0 0 0 0 0 0 0 0 0 0 0 0 024.5 0 0 0 0 0 0 0 0 0 0 0 0 0 025.5 0 0 0 0 0 0 0 0 0 0 0 0 0 026.5 0 0 0 0 0 0 0 0 0 0 0 0 0 027.5 0 0 0 0 0 0 0 0 0 0 0 0 0 028.5 0 0 0 0 0 0 0 0 0 0 0 0 0 029.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Description:The park power curve is similar to a WTG power curve, meaning that when a given wind speed appears in front of the park with same speed in the entire wind farm area(before influence from the park), the output from the park can be found in the park power curve. Another way to say this: The park power curve includes wake losses,but do NOT include terrain given variations in the wind speed over the park area.Measuring a park power curve is not as simple as measuring a WTG power curve due to the fact that the park power curve depends on the wind direction and that thesame wind speed normally will not appear for the entire park area at the same time (only in very flat non-complex terrain). The idea with this version of the park powercurve is not to use it for validation based on measurements. This would require at least 2 measurement masts at two sides of the park, unless only a few directionsectors should be tested, AND non complex terrain (normally only useable off shore). Another park power curve version for complex terrain is available in windPRO.
The park power curve can be used for:1. Forecast systems, based on more rough (approximated) wind data, the park power curve would be an efficient way to make the connection from wind speed
(and direction) to power.2. Construction of duration curves, telling how often a given power output will appear, the park power curve can be used together with the average wind
distribution for the Wind farm area in hub height. The average wind distribution can eventually be obtained based on the Weibull parameters for each WTGposition. These are found at print menu: >Result to file< in the >Park result< which can be saved to file or copied to clipboard and pasted in Excel.
3. Calculation of wind energy index based on the PARK production (see below).4. Estimation of the expected PARK production for an existing wind farm based on wind measurements at minimum 2 measurement masts at two sides of wind
farm. The masts must be used for obtaining the free wind speed. The free wind speed is used in the simulation of expected energy production with the PARKpower curve. This procedure will only work suitable in non complex terrains. For complex terrain another park power curve calculation is available in windPRO(PPV-model).
Note:From the >Result to file< the >Wind Speeds Inside Wind farm< is also available. These can (e.g. via Excel) be used for extracting the wake induced reductions inmeasured wind speed.
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PARK - WTG distancesCalculation: Park Gori II 5wtg's V150-4.2 Hub=105m 17.07.2019
Scale 1:100,000New WTG Existing WTG
WTG distancesZ Nearest WTG Z Horizontal Distance in
distance rotor diameters[m] [m] [m]
1 840.0 3 815.3 337 2.22 794.7 3 815.3 353 2.43 815.3 1 840.0 337 2.24 753.1 5 775.6 506 3.45 775.6 4 753.1 506 3.46 864.2 11 850.8 286 2.47 819.2 8 822.3 358 3.18 822.3 7 819.2 358 3.19 830.9 10 835.0 455 3.9
10 835.0 11 850.8 374 3.211 850.8 6 864.2 286 2.4
Min 753.1 753.1 286 2.2Max 864.2 864.2 506 3.9
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PARK - Wind statistics infoCalculation: Park Gori II 5wtg's V150-4.2 Hub=105m 17.07.2019Main data for wind statisticFile E:\work\WindPRO Data\Projects\Gori II\GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wwsName Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3))Country GeorgiaSource USERMast coordinates UTM (north)-WGS84 Zone: 38 East: 420,904 North: 4,653,454Created 12/07/2019Edited 12/07/2019Sectors 12WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Displacement height None
CommentsFrom MCP
Additional info for wind statisticBased on measurement height 80.0 mBase elevation for measurement mast 845.6 m
Long term correction informationMethod Matrix MCPSource data MERRA_basic_E44.002_N42.000 (3)Distance to source data 4.8 kmLong term period from 01/01/1989Long term period to 01/03/2016Concurrent period from 07/08/2013Concurrent period to 01/03/2016Concurrent data records 10255Concurrent record interval 60 minutesConcurrent data recovery 67.1 %
Number of years with long term data 27.2 yearsNumber of months with concurrent data 14.0 Months
Correlation test based on Concurrent monthly windindicesPower curve used for index Simple power curve truncated at: 14.0 m/sData availability demand for inclusion of month 60 %Number of months 20r^2 - wind index 0.7892r - wind index 0.8884s - wind index 6.1510
NoteTo get the most correct calculation results, wind statistics shall be calculated with the SAME model and model parameters, as currently chosen incalculation. For WAsP versions before 10.0, the model is unchanged, but thereafter more model changes affecting the wind statistic is seen.Likewise WAsP CFD should always use WAsP CFD calculated wind statistics.
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PARK - RIX calculationCalculation: Park Gori II 5wtg's V150-4.2 Hub=105m 17.07.2019Assumptions
Radius for calculation 3,500 mSteepness threshold 30.0 % / 17 °Directional weight Equally distributedRIX for wind statistic Calculated on windstatistic position. If not available Site data position is usedHeight contours used HCLAlfa 1.0No RIX correction for delta RIX in interval -5.0 % - 5.0 %
Reference sitesTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Site Data/Wind statistics Reference site RIX[%]
A 420,904 4,653,454 Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)) 1.8
WTG sitesUTM (north)-WGS84 Zone: 38
Links Easting Northing Z Reference site RIX WTG RIX Delta RIX (WTG site - Reference site) RIX correction[m] [%] [%] [%] [MWh/y]
1 A 416,358 4,656,168 840.0 1.8 0.0 -1.8 0.002 A 416,443 4,655,527 794.7 1.8 0.0 -1.8 0.003 A 416,519 4,655,872 815.3 1.8 0.0 -1.8 0.004 A 415,693 4,654,652 753.1 1.8 0.0 -1.8 0.005 A 416,173 4,654,811 775.6 1.8 0.0 -1.7 0.006 A 421,119 4,653,602 864.2 1.8 2.1 0.3 0.007 A 421,280 4,651,670 819.2 1.8 1.4 -0.4 0.008 A 421,419 4,652,000 822.3 1.8 1.3 -0.5 0.009 A 421,118 4,652,595 830.9 1.8 1.1 -0.7 0.00
10 A 420,938 4,653,012 835.0 1.8 1.3 -0.5 0.0011 A 421,153 4,653,318 850.8 1.8 1.6 -0.2 0.00
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PARK - RIX calculationCalculation: Park Gori II 5wtg's V150-4.2 Hub=105m 17.07.2019
Latest research /Risø/ show that the threshold in RIX calculation typically work best with 40% (new default), and that delta Rixwithin +/- 5% should not give corrections. Cross predictions based on more mast can fine tune the threshold, see Cross predictortool in windPRO Meteo Analyzer. In windPRO LOSS&&UNCERTAINTY module, RIX correction can be calculated automatically as abias based on most recent recommended correction formulas, which can be found in EWEC2006 && 08 papers on Rix from Risø,see extract below:
The main conclusion based on use of the RIX method is that if both reference site (measurement mast) and predicted site (WTG)are equally rugged (Delta RIX < 5%), very small calculation errors are expected.If reference site (measurement mast) is very rugged, e.g. RIX = 0.2 and predicted site (WTG) are less rugged (e.g. RIX = 0),Delta RIX will be -0.2 and according to the graph, 30% too low wind speed prediction at WTG site could be expected. This couldlead to around 60%*) too low calculated energy production.If the reference site is less rugged, e.g. RIX = 0, and the predicted site (WTG) are very rugged (e.g. RIX = 0.2), Delta RIX will be+0.2, and according to the graph, 30% too high wind speed prediction at WTG site could be expected. This could lead to around60%*) too high calculated energy production.*) Doubling of energy prediction error based on mean wind speed error is a rough conversion, which holds for wind speedsaround 8 m/s. At 6-7 m/s tripling is more right, while only 1.5 factors should be used for 9 m/s, see graph below based on atypical WTG.
Source: EWEC06 paper:IMPROVING WAsP PREDICTIONS IN (TOO) COMPLEX TERRAINNiels G. Mortensen, Anthony J. Bowen and Ioannis AntoniouWind Energy Department, Risø National Laboratory
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PARK - MapCalculation: Park Gori II 5wtg's V150-4.2 Hub=105m 17.07.2019
0 500 1000 1500 2000 mMap: BigGameHunter , Print scale 1:40,000, Map center UTM (north)-WGS84 Zone: 38 East: 418,556 North: 4,653,919
New WTG Existing WTG
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PARK - Main ResultCalculation: Park Gori II - SH 9wtg's GE1.5xle Hub=100m 17.07.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 100.0 m = 1.121 kg/m³ -> 91.5 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Site Data
Key results for height 100.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent distribution roughness
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 4,715 8.5 1.9
Calculated Annual Energy for Wind FarmSpecific results¤)
WTG combination Result GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speedPARK Free WTGs factor result hours @hub height
[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s]Wind farm 58,313.9 60,525.4 3.7 49.3 6,479.3 4,320 8.4¤) Based on wake reduced results, but no other losses included
*) Included in wake losses is influence from 6 WTG(s) in the neighborhood, which has status as "Reference WTGs", see separate report to identify these.
Calculated Annual Energy for each of 9 new WTGs with total 13.5 MW rated powerWTG type Power curve Annual Energy
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Result Wake Free rated diameter height loss mean
wind speed
[kW] [m] [m] [MWh/y] [%] [m/s]1 A No GE WIND ENERGY GE 1.5 xle-1,500 1,500 82.5 100.0 EMD Level 0 - Calculated - Standard operation - 2006 7,106.6 1.8 8.842 A No GE WIND ENERGY GE 1.5 xle-1,500 1,500 82.5 100.0 EMD Level 0 - Calculated - Standard operation - 2006 6,725.7 1.0 8.443 A No GE WIND ENERGY GE 1.5 xle-1,500 1,500 82.5 100.0 EMD Level 0 - Calculated - Standard operation - 2006 6,636.4 0.8 8.334 A No GE WIND ENERGY GE 1.5 xle-1,500 1,500 82.5 100.0 EMD Level 0 - Calculated - Standard operation - 2006 6,602.9 0.9 8.315 A No GE WIND ENERGY GE 1.5 xle-1,500 1,500 82.5 100.0 EMD Level 0 - Calculated - Standard operation - 2006 6,580.2 2.4 8.386 A No GE WIND ENERGY GE 1.5 xle-1,500 1,500 82.5 100.0 EMD Level 0 - Calculated - Standard operation - 2006 5,991.9 7.2 8.157 A No GE WIND ENERGY GE 1.5 xle-1,500 1,500 82.5 100.0 EMD Level 0 - Calculated - Standard operation - 2006 5,874.2 11.8 8.298 A No GE WIND ENERGY GE 1.5 xle-1,500 1,500 82.5 100.0 EMD Level 0 - Calculated - Standard operation - 2006 6,233.8 5.4 8.239 A No GE WIND ENERGY GE 1.5 xle-1,500 1,500 82.5 100.0 EMD Level 0 - Calculated - Standard operation - 2006 6,562.3 1.9 8.31
Annual Energy results do not include any losses apart from wake losses. Additional losses and uncertainty must be considered for an investmentdecision.
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description
[m]1 New 416,369 4,656,160 840.0 GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! hub: 100.0 m (TOT: 141.3 m) (31)2 New 416,538 4,655,876 815.6 GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! hub: 100.0 m (TOT: 141.3 m) (32)
To be continued on next page...
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PARK - Main ResultCalculation: Park Gori II - SH 9wtg's GE1.5xle Hub=100m 17.07.2019...continued from previous page
UTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description
[m]3 New 416,458 4,655,542 795.9 GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! hub: 100.0 m (TOT: 141.3 m) (33)4 New 416,316 4,655,191 783.2 GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! hub: 100.0 m (TOT: 141.3 m) (34)5 New 416,206 4,654,821 777.5 GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! hub: 100.0 m (TOT: 141.3 m) (35)6 New 416,323 4,654,450 756.2 GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! hub: 100.0 m (TOT: 141.3 m) (36)7 New 416,095 4,654,622 765.8 GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! hub: 100.0 m (TOT: 141.3 m) (37)8 New 415,663 4,654,651 751.8 GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! hub: 100.0 m (TOT: 141.3 m) (38)9 New 415,800 4,654,359 749.6 GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! hub: 100.0 m (TOT: 141.3 m) (39)
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PARK - Reference WTGsCalculation: Park Gori II - SH 9wtg's GE1.5xle Hub=100m 17.07.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 100.0 m = 1.121 kg/m³ -> 91.5 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
RIX correction used
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Scale 1:40,000
New WTG Existing WTGKey results for height 100.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent distribution roughness
[kWh/m²] [m/s]A 415,933 4,655,425 WAsP Gori II WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 4,715 8.5 1.9
Calculated Annual Energy for reference WTGsSpecific results Specific results
Calculated GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speed Actual wind Goodness Factorprod. without Free WTGs factor result hours @hub height corrected
new WTGs energy[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s] [MWh/y] [%]98,795.5 99,245.5 0.6 54.4 16,465.9 4,773 9.0 0.0
Calculated Annual Energy for each of 6 reference WTGs with total 20.7 MW rated powerWTG type Power curve
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Calculated Goodness rated diameter height prod. Factor
without new WTGs
[kW] [m] [m] [MWh/y] [%]10 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,887.8 011 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 15,756.9 012 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,157.4 013 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,495.5 014 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,396.5 015 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 17,101.4 0
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description Production source Statistical basis
for normalized production:
[m] [Months]10 421,119 4,653,602 864.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (1)11 421,280 4,651,670 819.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (2)12 421,419 4,652,000 822.3 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (3)13 421,118 4,652,595 830.9 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (4)14 420,938 4,653,012 835.0 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (5)15 421,153 4,653,318 850.8 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (6)
windPRO 3.2.744 by EMD International A/S, Tel. + 45 96 35 44 44, www.emd.dk, windpro@emd.dk windPRO17/07/2019 16:08 / 4
Project:
Gori II
PARK - Production AnalysisCalculation: Park Gori II - SH 9wtg's GE1.5xle Hub=100m 17.07.2019WTG: All new WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.119 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 32.5 7.9 176.6 6,338.2 17,448.2 2,362.0 42.1 28.3 956.0 18,583.1 7,759.4 537.6 54,271.9+Increase due to hills [MWh] 16.7 1.7 182.7 1,006.9 1,578.5 187.8 53.2 7.5 507.9 2,093.3 565.8 51.6 6,253.6-Decrease due to wake losses [MWh] 4.7 1.5 10.1 257.6 901.9 200.7 10.3 4.6 46.2 530.8 200.8 42.3 2,211.5Resulting energy [MWh] 44.6 8.1 349.2 7,087.4 18,124.8 2,349.1 85.1 31.2 1,417.7 20,145.6 8,124.4 546.9 58,313.9Specific energy [kWh/m²] 1,212Specific energy [kWh/kW] 4,320Increase due to hills [%] 51.5 22.1 103.4 15.9 9.0 8.0 126.2 26.6 53.1 11.3 7.3 9.6 11.52Decrease due to wake losses [%] 9.5 15.3 2.8 3.5 4.7 7.9 10.8 12.8 3.2 2.6 2.4 7.2 3.65Utilization [%] 23.6 24.7 26.4 29.5 30.5 29.1 25.6 20.2 23.1 25.1 25.6 21.8 27.2Operational [Hours/year] 54 12 133 1,054 2,625 499 25 16 313 2,380 1,152 191 8,457Full Load Equivalent [Hours/year] 3 1 26 525 1,343 174 6 2 105 1,492 602 41 4,320
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Project:
Gori II
PARK - Production AnalysisCalculation: Park Gori II - SH 9wtg's GE1.5xle Hub=100m 17.07.2019WTG: All existing WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.119 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 41.5 12.3 275.4 9,755.1 23,431.9 2,991.1 27.4 37.0 1,394.9 27,396.4 10,983.1 743.0 77,089.1+Increase due to hills [MWh] 20.3 2.5 282.0 3,780.8 6,429.0 532.1 55.1 12.1 889.4 7,721.2 2,324.0 108.0 22,156.4-Decrease due to wake losses [MWh] 10.8 1.9 3.5 0.0 0.0 332.0 9.5 5.6 11.6 55.7 119.9 75.2 625.7Resulting energy [MWh] 51.0 12.9 553.8 13,535.9 29,860.9 3,191.1 73.1 43.5 2,272.7 35,061.9 13,187.2 775.7 98,619.8Specific energy [kWh/m²] 1,529Specific energy [kWh/kW] 4,764Increase due to hills [%] 48.9 20.0 102.4 38.8 27.4 17.8 201.0 32.7 63.8 28.2 21.2 14.5 28.74Decrease due to wake losses [%] 17.5 13.0 0.6 0.0 0.0 9.4 11.5 11.4 0.5 0.2 0.9 8.8 0.63Utilization [%] 24.2 27.5 27.6 29.9 32.2 30.4 27.7 22.7 24.4 24.3 25.3 23.1 27.4Operational [Hours/year] 50 13 130 1,183 2,598 470 15 16 306 2,498 1,146 183 8,608Full Load Equivalent [Hours/year] 2 1 27 654 1,443 154 4 2 110 1,694 637 37 4,764
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Project:
Gori II
PARK - Power Curve AnalysisCalculation: Park Gori II - SH 9wtg's GE1.5xle Hub=100m 17.07.2019WTG: 1 - GE WIND ENERGY GE 1.5 xle 1500 82.5 !O!, Hub height: 100.0 mName: Level 0 - Calculated - Standard operation - 2006Source: Manufacturer
Source/Date Created by Created Edited Stop wind speed Power control CT curve type Generator type Specific power[m/s] kW/m²
31/12/2006 EMD 21/11/2000 10/01/2007 20.0 Pitch User defined Variable 0.28Based on document 1.5xle_PCD_allComp_xxxxxxxx.ENxx.03.pdf. Special adapted power curves for air densities 1.02-1.20 kg/m³ available frommanufacturer. When using this PC, WindPRO's standard algorithm for air density adaptation will be used.
HP curve comparison - Note: For standard air density
Vmean [m/s] 5 6 7 8 9 10HP value Pitch, variable speed (2013) [MWh] 2,675 4,025 5,308 6,436 7,378 8,125GE WIND ENERGY GE 1.5 xle 1500 82.5 !O! Level 0 - Calculated - Standard operation - 2006 [MWh] 2,544 3,882 5,147 6,211 7,007 7,524Check value [%] 5 4 3 4 5 8The table shows comparison between annual energy production calculated on basis of simplified "HP-curves" which assume that all WTGs performs quite similar - only specific power loading(kW/m^2) and single/dual speed or stall/pitch decides the calculated values. Productions are without wake losses.For further details, ask at the Danish Energy Agency for project report J.nr. 51171/00-0016 or see windPRO manual chapter 3.5.2.The method is refined in EMD report "20 Detailed Case Studies comparing Project Design Calculations and actual Energy Productions for Wind Energy Projects worldwide", jan 2003.Use the table to evaluate if the given power curve is reasonable - if the check value are lower than -5%, the power curve probably is too optimistic due to uncertainty in power curvemeasurement.
Power curveOriginal data, Air density: 1.225 kg/m³Wind speed Power Cp Wind speed Ct curve
[m/s] [kW] [m/s]2.5 0.0 0.00 3.0 1.213.0 3.0 0.03 4.0 0.993.5 26.0 0.19 5.0 0.904.0 60.0 0.29 6.0 0.894.5 104.0 0.35 7.0 0.885.0 158.0 0.39 8.0 0.825.5 219.0 0.40 9.0 0.736.0 294.0 0.42 10.0 0.606.5 382.0 0.42 11.0 0.477.0 486.0 0.43 12.0 0.357.5 607.0 0.44 13.0 0.278.0 739.0 0.44 14.0 0.228.5 891.0 0.44 15.0 0.189.0 1,033.0 0.43 16.0 0.149.5 1,175.0 0.42 17.0 0.1210.0 1,290.0 0.39 18.0 0.1010.5 1,379.0 0.36 19.0 0.0911.0 1,442.0 0.33 20.0 0.0711.5 1,472.0 0.30 21.0 0.0712.0 1,491.0 0.26 22.0 0.0612.5 1,497.0 0.23 23.0 0.0513.0 1,500.0 0.21 24.0 0.0513.5 1,500.0 0.19 25.0 0.0414.0 1,500.0 0.1714.5 1,500.0 0.1515.0 1,500.0 0.1415.5 1,500.0 0.1216.0 1,500.0 0.1116.5 1,500.0 0.1017.0 1,500.0 0.0917.5 1,500.0 0.0918.0 1,500.0 0.0818.5 1,500.0 0.0719.0 1,500.0 0.0719.5 1,500.0 0.0620.0 1,500.0 0.06
Power, Efficiency and energy vs. wind speedData used in calculation, Air density: 1.109 kg/m³ New windPRO method(adjusted IEC method, improved to match turbine control) <RECOMMENDED>
Wind speed Power Cp Interval Energy Acc.Energy Relative[m/s] [kW] [m/s] [MWh] [MWh] [%]1.0 0.0 0.00 0.50- 1.50 0.0 0.0 0.02.0 0.0 0.00 1.50- 2.50 0.0 0.0 0.03.0 2.4 0.03 2.50- 3.50 3.9 3.9 0.14.0 50.9 0.27 3.50- 4.50 27.3 31.2 0.45.0 139.9 0.38 4.50- 5.50 87.8 118.9 1.76.0 263.8 0.41 5.50- 6.50 197.6 316.6 4.57.0 437.1 0.43 6.50- 7.50 368.1 684.7 9.68.0 667.7 0.44 7.50- 8.50 593.8 1,278.5 18.09.0 941.6 0.44 8.50- 9.50 827.6 2,106.2 29.610.0 1,197.2 0.40 9.50-10.50 987.2 3,093.3 43.511.0 1,375.8 0.35 10.50-11.50 1,008.1 4,101.5 57.712.0 1,462.7 0.29 11.50-12.50 896.2 4,997.6 70.313.0 1,493.7 0.23 12.50-13.50 714.4 5,712.0 80.414.0 1,500.0 0.18 13.50-14.50 524.3 6,236.3 87.815.0 1,500.0 0.15 14.50-15.50 358.9 6,595.2 92.816.0 1,500.0 0.12 15.50-16.50 230.8 6,826.1 96.117.0 1,500.0 0.10 16.50-17.50 140.1 6,966.2 98.018.0 1,500.0 0.09 17.50-18.50 80.7 7,046.8 99.219.0 1,500.0 0.07 18.50-19.50 44.3 7,091.1 99.820.0 1,500.0 0.06 19.50-20.50 15.4 7,106.6 100.0
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Project:
Gori II
PARK - TerrainCalculation: Park Gori II - SH 9wtg's GE1.5xle Hub=100m 17.07.2019Site Data: A - WAsP Gori II
Obstacles:
0 Obstacles used
Roughness:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\ROUGHNESSLINE_ONLINEDATA_1.wpoMin X: 398,219, Max X: 428,401, Min Y: 4,642,241, Max Y: 4,671,415, Width: 30,182 m, Height: 29,175 m
Orography:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\CONTOURLINE_ONLINEDATA_0.wpoMin X: 402,913, Max X: 423,154, Min Y: 4,646,647, Max Y: 4,666,294, Width: 20,242 m, Height: 19,648 m
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Project:
Gori II
PARK - Wind Data AnalysisCalculation: Park Gori II - SH 9wtg's GE1.5xle Hub=100m 17.07.2019Wind data: A - WAsP Gori II; Hub height: 91.5Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.18 2.28 0.908 0.6 2.80 0.865 0.9 1 NNE 2.43 2.45 0.982 0.1 2.11 0.904 0.2 2 ENE 4.22 3.95 1.225 1.3 3.07 1.031 0.8 3 E 9.10 8.09 2.725 11.9 9.73 2.648 9.3 4 ESE 9.50 8.48 3.037 32.0 10.19 3.016 30.4 5 SSE 7.98 7.06 2.209 6.0 9.44 2.549 10.1 6 S 4.84 4.49 1.275 0.1 8.11 1.983 1.0 7 SSW 4.08 3.95 1.088 0.2 4.94 1.131 0.1 8 WSW 6.26 5.68 1.451 2.9 4.72 1.121 1.7 9 W 10.68 9.54 2.971 28.5 11.28 2.953 25.210 WNW 9.72 8.62 2.447 14.0 10.72 2.556 16.511 NNW 5.59 5.17 1.287 2.3 8.56 1.813 3.9All 9.46 8.40 2.525 100.0 10.17 2.524 100.0
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Project:
Gori II
PARK - Wind Data AnalysisCalculation: Park Gori II - SH 9wtg's GE1.5xle Hub=100m 17.07.2019Wind data: A - WAsP Gori II; Hub height: 100.0Site coordinatesUTM (north)-WGS84 Zone: 38East: 415,933 North: 4,655,425Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.23 2.33 0.916 0.6 2.87 0.870 0.9 1 NNE 2.49 2.49 0.994 0.1 2.16 0.910 0.2 2 ENE 4.31 4.03 1.240 1.3 3.14 1.040 0.8 3 E 9.26 8.24 2.764 11.9 9.92 2.670 9.3 4 ESE 9.66 8.63 3.080 32.1 10.39 3.040 30.4 5 SSE 8.11 7.19 2.236 6.0 9.63 2.570 10.1 6 S 4.94 4.57 1.291 0.1 8.28 2.000 1.0 7 SSW 4.17 4.02 1.100 0.2 5.05 1.140 0.1 8 WSW 6.39 5.78 1.471 2.9 4.83 1.130 1.7 9 W 10.84 9.68 3.006 28.4 11.47 2.980 25.210 WNW 9.87 8.76 2.479 14.0 10.90 2.580 16.511 NNW 5.70 5.26 1.299 2.3 8.72 1.830 3.9All 9.61 8.54 2.553 100.0 10.36 2.545 100.0
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Project:
Gori II
PARK - Wind Data AnalysisCalculation: Park Gori II - SH 9wtg's GE1.5xle Hub=100m 17.07.2019Wind data: A - WAsP Gori II; Hub height: 91.5Site coordinatesUTM (north)-WGS84 Zone: 38East: 420,904 North: 4,653,454Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.25 2.36 0.908 0.6 2.80 0.865 0.9 1 NNE 2.47 2.50 0.967 0.1 2.11 0.904 0.2 2 ENE 4.45 4.17 1.217 1.3 3.07 1.031 0.8 3 E 9.60 8.55 2.744 12.6 9.73 2.648 9.3 4 ESE 9.73 8.69 3.037 31.3 10.19 3.016 30.4 5 SSE 8.03 7.11 2.197 5.8 9.44 2.549 10.1 6 S 5.16 4.76 1.314 0.1 8.11 1.983 1.0 7 SSW 4.11 3.99 1.080 0.2 4.94 1.131 0.1 8 WSW 6.94 6.25 1.521 3.1 4.72 1.121 1.7 9 W 11.29 10.08 2.963 28.6 11.28 2.953 25.210 WNW 10.25 9.09 2.447 13.9 10.72 2.556 16.511 NNW 5.86 5.40 1.307 2.3 8.56 1.813 3.9All 9.88 8.77 2.510 100.0 10.17 2.524 100.0
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Project:
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PARK - Park power curveCalculation: Park Gori II - SH 9wtg's GE1.5xle Hub=100m 17.07.2019
PowerWind Free Park N NNE ENE E ESE SSE S SSW WSW W WNW NNWspeed WTGs WTGs[m/s] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW]
0.5 0 0 0 0 0 0 0 0 0 0 0 0 0 01.5 0 0 0 0 0 0 0 0 0 0 0 0 0 02.5 0 0 0 0 0 0 0 0 0 0 0 0 0 03.5 188 151 121 108 154 154 148 134 120 108 152 153 166 1334.5 823 712 624 547 730 721 704 644 628 548 725 722 746 6425.5 1,780 1,601 1,465 1,299 1,634 1,618 1,583 1,490 1,472 1,295 1,626 1,621 1,653 1,4876.5 3,112 2,827 2,624 2,373 2,880 2,856 2,796 2,657 2,630 2,371 2,869 2,861 2,912 2,6527.5 4,945 4,527 4,225 3,856 4,605 4,569 4,474 4,281 4,233 3,862 4,591 4,580 4,655 4,2758.5 7,262 6,732 6,344 5,820 6,840 6,789 6,650 6,429 6,358 5,830 6,823 6,811 6,896 6,4219.5 9,708 9,192 8,805 8,153 9,309 9,252 9,101 8,892 8,816 8,163 9,295 9,282 9,345 8,887
10.5 11,718 11,371 11,092 10,477 11,453 11,418 11,311 11,156 11,093 10,485 11,446 11,439 11,465 11,15411.5 12,915 12,757 12,627 12,258 12,794 12,780 12,729 12,659 12,622 12,272 12,792 12,789 12,799 12,65812.5 13,357 13,317 13,283 13,167 13,326 13,322 13,311 13,290 13,280 13,173 13,326 13,325 13,327 13,29013.5 13,486 13,479 13,474 13,452 13,481 13,480 13,478 13,474 13,473 13,453 13,481 13,480 13,481 13,47414.5 13,500 13,500 13,500 13,498 13,500 13,500 13,500 13,500 13,500 13,499 13,500 13,500 13,500 13,50015.5 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,50016.5 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,50017.5 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,50018.5 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,50019.5 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,500 13,50020.5 0 0 0 0 0 0 0 0 0 0 0 0 0 021.5 0 0 0 0 0 0 0 0 0 0 0 0 0 022.5 0 0 0 0 0 0 0 0 0 0 0 0 0 023.5 0 0 0 0 0 0 0 0 0 0 0 0 0 024.5 0 0 0 0 0 0 0 0 0 0 0 0 0 025.5 0 0 0 0 0 0 0 0 0 0 0 0 0 026.5 0 0 0 0 0 0 0 0 0 0 0 0 0 027.5 0 0 0 0 0 0 0 0 0 0 0 0 0 028.5 0 0 0 0 0 0 0 0 0 0 0 0 0 029.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Description:The park power curve is similar to a WTG power curve, meaning that when a given wind speed appears in front of the park with same speed in the entire wind farm area(before influence from the park), the output from the park can be found in the park power curve. Another way to say this: The park power curve includes wake losses,but do NOT include terrain given variations in the wind speed over the park area.Measuring a park power curve is not as simple as measuring a WTG power curve due to the fact that the park power curve depends on the wind direction and that thesame wind speed normally will not appear for the entire park area at the same time (only in very flat non-complex terrain). The idea with this version of the park powercurve is not to use it for validation based on measurements. This would require at least 2 measurement masts at two sides of the park, unless only a few directionsectors should be tested, AND non complex terrain (normally only useable off shore). Another park power curve version for complex terrain is available in windPRO.
The park power curve can be used for:1. Forecast systems, based on more rough (approximated) wind data, the park power curve would be an efficient way to make the connection from wind speed
(and direction) to power.2. Construction of duration curves, telling how often a given power output will appear, the park power curve can be used together with the average wind
distribution for the Wind farm area in hub height. The average wind distribution can eventually be obtained based on the Weibull parameters for each WTGposition. These are found at print menu: >Result to file< in the >Park result< which can be saved to file or copied to clipboard and pasted in Excel.
3. Calculation of wind energy index based on the PARK production (see below).4. Estimation of the expected PARK production for an existing wind farm based on wind measurements at minimum 2 measurement masts at two sides of wind
farm. The masts must be used for obtaining the free wind speed. The free wind speed is used in the simulation of expected energy production with the PARKpower curve. This procedure will only work suitable in non complex terrains. For complex terrain another park power curve calculation is available in windPRO(PPV-model).
Note:From the >Result to file< the >Wind Speeds Inside Wind farm< is also available. These can (e.g. via Excel) be used for extracting the wake induced reductions inmeasured wind speed.
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Project:
Gori II
PARK - WTG distancesCalculation: Park Gori II - SH 9wtg's GE1.5xle Hub=100m 17.07.2019
Scale 1:100,000New WTG Existing WTG
WTG distancesZ Nearest WTG Z Horizontal Distance in
distance rotor diameters[m] [m] [m]
1 840.0 2 815.6 330 4.02 815.6 1 840.0 330 4.03 795.9 2 815.6 344 4.24 783.2 3 795.9 379 4.65 777.5 7 765.8 228 2.86 756.2 7 765.8 287 3.57 765.8 5 777.5 228 2.88 751.8 9 749.6 322 3.99 749.6 8 751.8 322 3.9
10 864.2 15 850.8 286 2.411 819.2 12 822.3 358 3.112 822.3 11 819.2 358 3.113 830.9 14 835.0 455 3.914 835.0 15 850.8 374 3.215 850.8 10 864.2 286 2.4
Min 749.6 749.6 228 2.4Max 864.2 864.2 455 4.6
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Project:
Gori II
PARK - Wind statistics infoCalculation: Park Gori II - SH 9wtg's GE1.5xle Hub=100m 17.07.2019Main data for wind statisticFile E:\work\WindPRO Data\Projects\Gori II\GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wwsName Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3))Country GeorgiaSource USERMast coordinates UTM (north)-WGS84 Zone: 38 East: 420,904 North: 4,653,454Created 12/07/2019Edited 12/07/2019Sectors 12WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Displacement height None
CommentsFrom MCP
Additional info for wind statisticBased on measurement height 80.0 mBase elevation for measurement mast 845.6 m
Long term correction informationMethod Matrix MCPSource data MERRA_basic_E44.002_N42.000 (3)Distance to source data 4.8 kmLong term period from 01/01/1989Long term period to 01/03/2016Concurrent period from 07/08/2013Concurrent period to 01/03/2016Concurrent data records 10255Concurrent record interval 60 minutesConcurrent data recovery 67.1 %
Number of years with long term data 27.2 yearsNumber of months with concurrent data 14.0 Months
Correlation test based on Concurrent monthly windindicesPower curve used for index Simple power curve truncated at: 14.0 m/sData availability demand for inclusion of month 60 %Number of months 20r^2 - wind index 0.7892r - wind index 0.8884s - wind index 6.1510
NoteTo get the most correct calculation results, wind statistics shall be calculated with the SAME model and model parameters, as currently chosen incalculation. For WAsP versions before 10.0, the model is unchanged, but thereafter more model changes affecting the wind statistic is seen.Likewise WAsP CFD should always use WAsP CFD calculated wind statistics.
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Project:
Gori II
PARK - RIX calculationCalculation: Park Gori II - SH 9wtg's GE1.5xle Hub=100m 17.07.2019Assumptions
Radius for calculation 3,500 mSteepness threshold 30.0 % / 17 °Directional weight Equally distributedRIX for wind statistic Calculated on windstatistic position. If not available Site data position is usedHeight contours used HCLAlfa 1.0No RIX correction for delta RIX in interval -5.0 % - 5.0 %
Reference sitesTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Site Data/Wind statistics Reference site RIX[%]
A 420,904 4,653,454 Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)) 1.8
WTG sitesUTM (north)-WGS84 Zone: 38
Links Easting Northing Z Reference site RIX WTG RIX Delta RIX (WTG site - Reference site) RIX correction[m] [%] [%] [%] [MWh/y]
1 A 416,369 4,656,160 840.0 1.8 0.0 -1.8 0.002 A 416,538 4,655,876 815.6 1.8 0.0 -1.8 0.003 A 416,458 4,655,542 795.9 1.8 0.0 -1.8 0.004 A 416,316 4,655,191 783.2 1.8 0.0 -1.8 0.005 A 416,206 4,654,821 777.5 1.8 0.0 -1.8 0.006 A 416,323 4,654,450 756.2 1.8 0.0 -1.8 0.007 A 416,095 4,654,622 765.8 1.8 0.0 -1.8 0.008 A 415,663 4,654,651 751.8 1.8 0.0 -1.8 0.009 A 415,800 4,654,359 749.6 1.8 0.0 -1.8 0.00
10 A 421,119 4,653,602 864.2 1.8 2.1 0.3 0.0011 A 421,280 4,651,670 819.2 1.8 1.4 -0.4 0.0012 A 421,419 4,652,000 822.3 1.8 1.3 -0.5 0.0013 A 421,118 4,652,595 830.9 1.8 1.1 -0.7 0.0014 A 420,938 4,653,012 835.0 1.8 1.3 -0.5 0.0015 A 421,153 4,653,318 850.8 1.8 1.6 -0.2 0.00
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Project:
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PARK - RIX calculationCalculation: Park Gori II - SH 9wtg's GE1.5xle Hub=100m 17.07.2019
Latest research /Risø/ show that the threshold in RIX calculation typically work best with 40% (new default), and that delta Rixwithin +/- 5% should not give corrections. Cross predictions based on more mast can fine tune the threshold, see Cross predictortool in windPRO Meteo Analyzer. In windPRO LOSS&&UNCERTAINTY module, RIX correction can be calculated automatically as abias based on most recent recommended correction formulas, which can be found in EWEC2006 && 08 papers on Rix from Risø,see extract below:
The main conclusion based on use of the RIX method is that if both reference site (measurement mast) and predicted site (WTG)are equally rugged (Delta RIX < 5%), very small calculation errors are expected.If reference site (measurement mast) is very rugged, e.g. RIX = 0.2 and predicted site (WTG) are less rugged (e.g. RIX = 0),Delta RIX will be -0.2 and according to the graph, 30% too low wind speed prediction at WTG site could be expected. This couldlead to around 60%*) too low calculated energy production.If the reference site is less rugged, e.g. RIX = 0, and the predicted site (WTG) are very rugged (e.g. RIX = 0.2), Delta RIX will be+0.2, and according to the graph, 30% too high wind speed prediction at WTG site could be expected. This could lead to around60%*) too high calculated energy production.*) Doubling of energy prediction error based on mean wind speed error is a rough conversion, which holds for wind speedsaround 8 m/s. At 6-7 m/s tripling is more right, while only 1.5 factors should be used for 9 m/s, see graph below based on atypical WTG.
Source: EWEC06 paper:IMPROVING WAsP PREDICTIONS IN (TOO) COMPLEX TERRAINNiels G. Mortensen, Anthony J. Bowen and Ioannis AntoniouWind Energy Department, Risø National Laboratory
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Project:
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PARK - MapCalculation: Park Gori II - SH 9wtg's GE1.5xle Hub=100m 17.07.2019
0 500 1000 1500 2000 mMap: BigGameHunter , Print scale 1:40,000, Map center UTM (north)-WGS84 Zone: 38 East: 418,541 North: 4,653,915
New WTG Existing WTG
ANNEX 4
QARTLI1 REFERENCE CALCULATED ANNUAL ENERGY ANALYSIS
Annex 4
Qartli 1 Wind Farm
Reference
Calculated Annual Energy and Wind Turbine Generator Siting
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PARK - Main ResultCalculation: Park Gori I 6wtg's V117-3.45 Hub=91.5m 12.07.2019Wake Model N.O. Jensen (RISØ/EMD)
Calculation performed in UTM (north)-WGS84 Zone: 38At the site centre the difference between grid north and true north is: -0.7°
Power curve correction methodNew windPRO method (adjusted IEC method, improved to match turbine control) <RECOMMENDED>Air density calculation methodHeight dependent, temperature from climate station Station: PASANAURI Base temperature: 9.0 °C at 1310.0 m Base pressure: 1013.3 hPa at 0.0 m Air density for Site center in key hub height: 730.0 m + 91.0 m = 1.122 kg/m³ -> 91.6 % of Std Relative humidity: 0.0 %
Wake Model ParametersTerrain type Wake decay constantDTU default onshore 0.075
Omnidirectional displacement height from objects
Wake calculation settingsAngle [°] Wind speed [m/s]start end step start end step0.5 360.0 1.0 0.5 30.5 1.0
Wind statistics GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100 Scale 1:40,000New WTG Site Data
Key results for height 91.0 m above ground levelTerrain UTM (north)-WGS84 Zone: 38
Easting Northing Name of wind Type Wind energy Mean wind speed Equivalent distribution roughness
[kWh/m²] [m/s]A 420,904 4,653,454 WAsP Gori I WAsP (WAsP 10.2 RVEA0164.dll 3.0.1.100) 5,133 8.8 1.4
Calculated Annual Energy for Wind FarmSpecific results¤)
WTG combination Result GROSS (no loss) Wake loss Capacity Mean WTG Full load Mean wind speedPARK Free WTGs factor result hours @hub height
[MWh/y] [MWh/y] [%] [%] [MWh/y] [Hours/year] [m/s]Wind farm 98,795.5 99,245.5 0.5 54.4 16,465.9 4,773 9.0¤) Based on wake reduced results, but no other losses included
Calculated Annual Energy for each of 6 new WTGs with total 20.7 MW rated powerWTG type Power curve Annual Energy
Links Valid Manufact. Type-generator Power, Rotor Hub Creator Name Result Wake Free rated diameter height loss mean
wind speed
[kW] [m] [m] [MWh/y] [%] [m/s]1 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,887.8 0.5 9.162 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 15,756.9 0.1 8.683 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,157.4 0.2 8.864 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,495.5 0.7 9.045 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 16,396.5 1.0 8.996 A Yes VESTAS V117-3.45-3,450 3,450 117.0 91.5 EMD Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 17,101.4 0.2 9.22
Annual Energy results do not include any losses apart from wake losses. Additional losses and uncertainty must be considered for an investmentdecision.
WTG sitingUTM (north)-WGS84 Zone: 38Easting Northing Z Row data/Description
[m]1 New 421,119 4,653,602 864.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (1)2 New 421,280 4,651,670 819.2 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (2)3 New 421,419 4,652,000 822.3 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (3)4 New 421,118 4,652,595 830.9 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (4)5 New 420,938 4,653,012 835.0 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (5)6 New 421,153 4,653,318 850.8 VESTAS V117-3.45 3450 117.0 !O! hub: 91.5 m (TOT: 150.0 m) (6)
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PARK - Production AnalysisCalculation: Park Gori I 6wtg's V117-3.45 Hub=91.5m 12.07.2019WTG: All new WTGs, Air density varies with WTG position 1.108 kg/m³ - 1.113 kg/m³Directional AnalysisSector 0 N 1 NNE 2 ENE 3 E 4 ESE 5 SSE 6 S 7 SSW 8 WSW 9 W 10 WNW 11 NNW TotalRoughness based energy [MWh] 41.5 12.3 275.4 9,755.1 23,431.9 2,991.1 27.4 37.0 1,394.9 27,396.4 10,983.1 743.0 77,089.1+Increase due to hills [MWh] 20.3 2.5 282.0 3,780.8 6,429.0 532.1 55.1 12.1 889.4 7,721.2 2,324.0 108.0 22,156.4-Decrease due to wake losses [MWh] 10.8 1.9 3.5 0.0 0.0 332.0 9.5 5.6 11.6 0.0 0.0 75.1 449.9Resulting energy [MWh] 51.0 12.9 553.8 13,535.9 29,860.9 3,191.1 73.1 43.5 2,272.7 35,117.6 13,307.1 775.8 98,795.5Specific energy [kWh/m²] 1,532Specific energy [kWh/kW] 4,773Increase due to hills [%] 48.9 20.0 102.4 38.8 27.4 17.8 201.0 32.7 63.8 28.2 21.2 14.5 28.74Decrease due to wake losses [%] 17.5 13.0 0.6 0.0 0.0 9.4 11.5 11.4 0.5 0.0 0.0 8.8 0.45Utilization [%] 24.2 27.5 27.6 29.9 32.2 30.4 27.7 22.7 24.4 24.3 25.5 23.1 27.4Operational [Hours/year] 50 13 130 1,183 2,598 470 15 16 306 2,498 1,146 183 8,608Full Load Equivalent [Hours/year] 2 1 27 654 1,443 154 4 2 110 1,697 643 37 4,773
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PARK - Power Curve AnalysisCalculation: Park Gori I 6wtg's V117-3.45 Hub=91.5m 12.07.2019WTG: 1 - VESTAS V117-3.45 3450 117.0 !O!, Hub height: 91.5 mName: Level 0 - Calculated - Modes 0 & 0-0S - 01-2016Source: Manufacturer
Source/Date Created by Created Edited Stop wind speed Power control CT curve type Generator type Specific power[m/s] kW/m²
29/01/2016 EMD 02/05/2016 02/05/2016 25.0 Pitch User defined Variable 0.32Document no.: DMS 0053-3711.03.IEC IB; IIA.
HP curve comparison - Note: For standard air density
Vmean [m/s] 5 6 7 8 9 10HP value Pitch, variable speed (2013) [MWh] 5,502 8,447 11,327 13,919 16,122 17,896VESTAS V117-3.45 3450 117.0 !O! Level 0 - Calculated - Modes 0 & 0-0S - 01-2016 [MWh] 5,500 8,498 11,431 14,054 16,264 18,019Check value [%] 0 -1 -1 -1 -1 -1The table shows comparison between annual energy production calculated on basis of simplified "HP-curves" which assume that all WTGs performs quite similar - only specific power loading(kW/m^2) and single/dual speed or stall/pitch decides the calculated values. Productions are without wake losses.For further details, ask at the Danish Energy Agency for project report J.nr. 51171/00-0016 or see windPRO manual chapter 3.5.2.The method is refined in EMD report "20 Detailed Case Studies comparing Project Design Calculations and actual Energy Productions for Wind Energy Projects worldwide", jan 2003.Use the table to evaluate if the given power curve is reasonable - if the check value are lower than -5%, the power curve probably is too optimistic due to uncertainty in power curvemeasurement.
Power curveOriginal data, Air density: 1.225 kg/m³Wind speed Power Cp Wind speed Ct curve
[m/s] [kW] [m/s]3.0 22.0 0.12 3.0 0.873.5 78.0 0.28 3.5 0.854.0 150.0 0.36 4.0 0.834.5 237.0 0.39 4.5 0.835.0 340.0 0.41 5.0 0.835.5 466.0 0.43 5.5 0.826.0 617.0 0.43 6.0 0.826.5 796.0 0.44 6.5 0.827.0 1,006.0 0.45 7.0 0.817.5 1,247.0 0.45 7.5 0.808.0 1,522.0 0.45 8.0 0.798.5 1,831.0 0.45 8.5 0.799.0 2,178.0 0.45 9.0 0.799.5 2,544.0 0.45 9.5 0.7710.0 2,905.0 0.44 10.0 0.7310.5 3,201.0 0.42 10.5 0.6711.0 3,374.0 0.38 11.0 0.5811.5 3,435.0 0.34 11.5 0.4912.0 3,448.0 0.30 12.0 0.4212.5 3,450.0 0.27 12.5 0.3613.0 3,450.0 0.24 13.0 0.3213.5 3,450.0 0.21 13.5 0.2814.0 3,450.0 0.19 14.0 0.2514.5 3,450.0 0.17 14.5 0.2215.0 3,450.0 0.16 15.0 0.2015.5 3,450.0 0.14 15.5 0.1816.0 3,450.0 0.13 16.0 0.1616.5 3,450.0 0.12 16.5 0.1517.0 3,450.0 0.11 17.0 0.1417.5 3,450.0 0.10 17.5 0.1318.0 3,450.0 0.09 18.0 0.1218.5 3,450.0 0.08 18.5 0.1119.0 3,450.0 0.08 19.0 0.1019.5 3,450.0 0.07 19.5 0.0920.0 3,450.0 0.07 20.0 0.0920.5 3,450.0 0.06 20.5 0.0821.0 3,450.0 0.06 21.0 0.0721.5 3,450.0 0.05 21.5 0.0722.0 3,450.0 0.05 22.0 0.0722.5 3,450.0 0.05 22.5 0.0623.0 3,450.0 0.04 23.0 0.0623.5 3,450.0 0.04 23.5 0.0524.0 3,450.0 0.04 24.0 0.0524.5 3,450.0 0.04 24.5 0.0525.0 3,450.0 0.03 25.0 0.05
Power, Efficiency and energy vs. wind speedData used in calculation, Air density: 1.108 kg/m³ New windPRO method(adjusted IEC method, improved to match turbine control) <RECOMMENDED>Wind speed Power Cp Interval Energy Acc.Energy Relative
[m/s] [kW] [m/s] [MWh] [MWh] [%]1.0 0.0 0.00 0.50- 1.50 0.0 0.0 0.02.0 0.0 0.00 1.50- 2.50 0.0 0.0 0.03.0 10.5 0.07 2.50- 3.50 11.5 11.5 0.14.0 130.4 0.34 3.50- 4.50 62.3 73.8 0.45.0 304.9 0.41 4.50- 5.50 178.9 252.7 1.56.0 555.2 0.43 5.50- 6.50 388.1 640.8 3.87.0 905.7 0.44 6.50- 7.50 716.0 1,356.9 8.08.0 1,371.2 0.45 7.50- 8.50 1,160.5 2,517.4 14.99.0 1,951.3 0.45 8.50- 9.50 1,673.9 4,191.3 24.810.0 2,609.7 0.44 9.50-10.50 2,138.2 6,329.5 37.511.0 3,186.2 0.40 10.50-11.50 2,350.1 8,679.5 51.412.0 3,415.0 0.33 11.50-12.50 2,196.4 10,875.9 64.413.0 3,448.9 0.26 12.50-13.50 1,816.1 12,692.0 75.214.0 3,450.0 0.21 13.50-14.50 1,395.6 14,087.7 83.415.0 3,450.0 0.17 14.50-15.50 1,012.4 15,100.1 89.416.0 3,450.0 0.14 15.50-16.50 695.3 15,795.4 93.517.0 3,450.0 0.12 16.50-17.50 453.1 16,248.6 96.218.0 3,450.0 0.10 17.50-18.50 280.8 16,529.4 97.919.0 3,450.0 0.08 18.50-19.50 165.9 16,695.2 98.920.0 3,450.0 0.07 19.50-20.50 93.6 16,788.8 99.421.0 3,450.0 0.06 20.50-21.50 50.6 16,839.4 99.722.0 3,450.0 0.05 21.50-22.50 26.3 16,865.7 99.923.0 3,450.0 0.05 22.50-23.50 13.3 16,879.0 99.924.0 3,450.0 0.04 23.50-24.50 6.6 16,885.6 100.025.0 3,450.0 0.04 24.50-25.50 2.2 16,887.8 100.0
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PARK - TerrainCalculation: Park Gori I 6wtg's V117-3.45 Hub=91.5m 12.07.2019Site Data: A - WAsP Gori I
Obstacles:
0 Obstacles used
Roughness:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\ROUGHNESSLINE_ONLINEDATA_1.wpoMin X: 398,219, Max X: 428,401, Min Y: 4,642,241, Max Y: 4,671,415, Width: 30,182 m, Height: 29,175 m
Orography:
Terrain data files used in calculation:E:\work\WindPRO Data\Projects\Gori II\CONTOURLINE_ONLINEDATA_0.wpoMin X: 402,913, Max X: 423,154, Min Y: 4,646,647, Max Y: 4,666,294, Width: 20,242 m, Height: 19,648 m
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Gori II
PARK - Wind Data AnalysisCalculation: Park Gori I 6wtg's V117-3.45 Hub=91.5m 12.07.2019Wind data: A - WAsP Gori I; Hub height: 91.5Site coordinatesUTM (north)-WGS84 Zone: 38East: 420,904 North: 4,653,454Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.25 2.36 0.908 0.6 2.80 0.865 0.9 1 NNE 2.47 2.50 0.967 0.1 2.11 0.904 0.2 2 ENE 4.45 4.17 1.217 1.3 3.07 1.031 0.8 3 E 9.60 8.55 2.744 12.6 9.73 2.648 9.3 4 ESE 9.73 8.69 3.037 31.3 10.19 3.016 30.4 5 SSE 8.03 7.11 2.197 5.8 9.44 2.549 10.1 6 S 5.16 4.76 1.314 0.1 8.11 1.983 1.0 7 SSW 4.11 3.99 1.080 0.2 4.94 1.131 0.1 8 WSW 6.94 6.25 1.521 3.1 4.72 1.121 1.7 9 W 11.29 10.08 2.963 28.6 11.28 2.953 25.210 WNW 10.25 9.09 2.447 13.9 10.72 2.556 16.511 NNW 5.86 5.40 1.307 2.3 8.56 1.813 3.9All 9.88 8.77 2.510 100.0 10.17 2.524 100.0
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Project:
Gori II
PARK - Wind Data AnalysisCalculation: Park Gori I 6wtg's V117-3.45 Hub=91.5m 12.07.2019Wind data: A - WAsP Gori I; Hub height: 91.0Site coordinatesUTM (north)-WGS84 Zone: 38East: 420,904 North: 4,653,454Wind statisticsGE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wws
Weibull DataCurrent site Reference: Roughness class 1
Sector A- Wind k- Frequency A- k- Frequencyparameter speed parameter parameter parameter
[m/s] [m/s] [%] [m/s] [%] 0 N 2.25 2.36 0.908 0.6 2.80 0.865 0.9 1 NNE 2.46 2.50 0.967 0.1 2.11 0.903 0.2 2 ENE 4.45 4.17 1.217 1.3 3.06 1.030 0.8 3 E 9.59 8.54 2.740 12.6 9.71 2.647 9.3 4 ESE 9.72 8.68 3.033 31.3 10.18 3.014 30.4 5 SSE 8.02 7.11 2.197 5.8 9.43 2.548 10.1 6 S 5.15 4.75 1.314 0.1 8.10 1.982 1.0 7 SSW 4.10 3.98 1.080 0.2 4.94 1.130 0.1 8 WSW 6.93 6.24 1.521 3.1 4.72 1.120 1.7 9 W 11.28 10.07 2.963 28.6 11.27 2.951 25.210 WNW 10.24 9.08 2.447 13.9 10.71 2.554 16.511 NNW 5.85 5.40 1.307 2.3 8.55 1.812 3.9All 9.87 8.76 2.510 100.0 10.16 2.522 100.0
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PARK - Park power curveCalculation: Park Gori I 6wtg's V117-3.45 Hub=91.5m 12.07.2019
PowerWind Free Park N NNE ENE E ESE SSE S SSW WSW W WNW NNWspeed WTGs WTGs[m/s] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW]
0.5 0 0 0 0 0 0 0 0 0 0 0 0 0 01.5 0 0 0 0 0 0 0 0 0 0 0 0 0 02.5 0 0 0 0 0 0 0 0 0 0 0 0 0 03.5 390 379 198 271 378 390 390 273 227 257 378 390 390 2664.5 1,266 1,243 865 990 1,244 1,266 1,266 1,020 907 970 1,244 1,266 1,266 1,0105.5 2,520 2,481 1,847 2,055 2,482 2,520 2,520 2,106 1,916 2,021 2,482 2,520 2,520 2,0906.5 4,312 4,249 3,227 3,567 4,250 4,312 4,312 3,643 3,339 3,511 4,250 4,312 4,312 3,6177.5 6,761 6,666 5,116 5,634 6,668 6,761 6,761 5,746 5,287 5,549 6,668 6,761 6,761 5,7088.5 9,912 9,777 7,589 8,321 9,782 9,912 9,912 8,480 7,832 8,204 9,782 9,912 9,912 8,4249.5 13,706 13,530 10,666 11,618 13,539 13,706 13,706 11,834 10,975 11,471 13,539 13,706 13,706 11,766
10.5 17,601 17,421 14,512 15,536 17,451 17,601 17,601 15,660 14,732 15,411 17,450 17,601 17,601 15,63311.5 20,078 19,977 18,330 18,973 20,016 20,078 20,078 18,967 18,353 18,936 20,016 20,078 20,078 18,98612.5 20,655 20,638 20,370 20,473 20,648 20,655 20,655 20,458 20,275 20,469 20,648 20,655 20,655 20,48913.5 20,700 20,699 20,690 20,693 20,700 20,700 20,700 20,692 20,679 20,693 20,700 20,700 20,700 20,69514.5 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,70015.5 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,70016.5 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,70017.5 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,70018.5 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,70019.5 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,70020.5 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,70021.5 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,70022.5 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,70023.5 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,70024.5 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,700 20,70025.5 0 0 0 0 0 0 0 0 0 0 0 0 0 026.5 0 0 0 0 0 0 0 0 0 0 0 0 0 027.5 0 0 0 0 0 0 0 0 0 0 0 0 0 028.5 0 0 0 0 0 0 0 0 0 0 0 0 0 029.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Description:The park power curve is similar to a WTG power curve, meaning that when a given wind speed appears in front of the park with same speed in the entire wind farm area(before influence from the park), the output from the park can be found in the park power curve. Another way to say this: The park power curve includes wake losses,but do NOT include terrain given variations in the wind speed over the park area.Measuring a park power curve is not as simple as measuring a WTG power curve due to the fact that the park power curve depends on the wind direction and that thesame wind speed normally will not appear for the entire park area at the same time (only in very flat non-complex terrain). The idea with this version of the park powercurve is not to use it for validation based on measurements. This would require at least 2 measurement masts at two sides of the park, unless only a few directionsectors should be tested, AND non complex terrain (normally only useable off shore). Another park power curve version for complex terrain is available in windPRO.
The park power curve can be used for:1. Forecast systems, based on more rough (approximated) wind data, the park power curve would be an efficient way to make the connection from wind speed
(and direction) to power.2. Construction of duration curves, telling how often a given power output will appear, the park power curve can be used together with the average wind
distribution for the Wind farm area in hub height. The average wind distribution can eventually be obtained based on the Weibull parameters for each WTGposition. These are found at print menu: >Result to file< in the >Park result< which can be saved to file or copied to clipboard and pasted in Excel.
3. Calculation of wind energy index based on the PARK production (see below).4. Estimation of the expected PARK production for an existing wind farm based on wind measurements at minimum 2 measurement masts at two sides of wind
farm. The masts must be used for obtaining the free wind speed. The free wind speed is used in the simulation of expected energy production with the PARKpower curve. This procedure will only work suitable in non complex terrains. For complex terrain another park power curve calculation is available in windPRO(PPV-model).
Note:From the >Result to file< the >Wind Speeds Inside Wind farm< is also available. These can (e.g. via Excel) be used for extracting the wake induced reductions inmeasured wind speed.
windPRO 3.2.744 by EMD International A/S, Tel. + 45 96 35 44 44, www.emd.dk, windpro@emd.dk windPRO12/07/2019 15:57 / 8
Project:
Gori II
PARK - WTG distancesCalculation: Park Gori I 6wtg's V117-3.45 Hub=91.5m 12.07.2019
Scale 1:40,000New WTG
WTG distancesZ Nearest WTG Z Horizontal Distance in
distance rotor diameters[m] [m] [m]
1 864.2 6 850.8 286 2.42 819.2 3 822.3 358 3.13 822.3 2 819.2 358 3.14 830.9 5 835.0 455 3.95 835.0 6 850.8 374 3.26 850.8 1 864.2 286 2.4
Min 819.2 819.2 286 2.4Max 864.2 864.2 455 3.9
windPRO 3.2.744 by EMD International A/S, Tel. + 45 96 35 44 44, www.emd.dk, windpro@emd.dk windPRO12/07/2019 15:57 / 9
Project:
Gori II
PARK - Wind statistics infoCalculation: Park Gori I 6wtg's V117-3.45 Hub=91.5m 12.07.2019Main data for wind statisticFile E:\work\WindPRO Data\Projects\Gori II\GE Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3)).wwsName Mast Gori 80m (Matrix MCP using MERRA_basic_E44.002_N42.000 (3))Country GeorgiaSource USERMast coordinates UTM (north)-WGS84 Zone: 38 East: 420,904 North: 4,653,454Created 12/07/2019Edited 12/07/2019Sectors 12WAsP version WAsP 10.2 RVEA0164.dll 3.0.1.100Displacement height None
CommentsFrom MCP
Additional info for wind statisticBased on measurement height 80.0 mBase elevation for measurement mast 845.6 m
Long term correction informationMethod Matrix MCPSource data MERRA_basic_E44.002_N42.000 (3)Distance to source data 4.8 kmLong term period from 01/01/1989Long term period to 01/03/2016Concurrent period from 07/08/2013Concurrent period to 01/03/2016Concurrent data records 10255Concurrent record interval 60 minutesConcurrent data recovery 67.1 %
Number of years with long term data 27.2 yearsNumber of months with concurrent data 14.0 Months
Correlation test based on Concurrent monthly windindicesPower curve used for index Simple power curve truncated at: 14.0 m/sData availability demand for inclusion of month 60 %Number of months 20r^2 - wind index 0.7892r - wind index 0.8884s - wind index 6.1510
NoteTo get the most correct calculation results, wind statistics shall be calculated with the SAME model and model parameters, as currently chosen incalculation. For WAsP versions before 10.0, the model is unchanged, but thereafter more model changes affecting the wind statistic is seen.Likewise WAsP CFD should always use WAsP CFD calculated wind statistics.
windPRO 3.2.744 by EMD International A/S, Tel. + 45 96 35 44 44, www.emd.dk, windpro@emd.dk windPRO12/07/2019 15:57 / 10
Project:
Gori II
PARK - MapCalculation: Park Gori I 6wtg's V117-3.45 Hub=91.5m 12.07.2019
0 250 500 750 1000 mMap: BigGameHunter , Print scale 1:12,500, Map center UTM (north)-WGS84 Zone: 38 East: 421,178 North: 4,652,636
New WTG
ANNEX 5
CAPEX
Annex 5
Capital Expenditure Calculations
FX EUR/USD1,12
Wind Farm Configuration MW No. WTG Capex Capex Capex CapexInstalled USD 000s USD 000s/MW EUR 000s EUR 000s/MW
Park Gori II - 2 X GE158-5.3 700 Hub=120.9m 10,6 2 15.350 1.448 13.705 1.293
Park Gori II - 3wtg's N149-4.5 Hub=105m 17.07.2019 13,5 3 19.200 1.422 17.142 1.270
Park Gori II - 3wtg's SWT-DD-142-4.1 Hub=109m 12.07.2019 12,3 3 18.085 1.470 16.148 1.313
Park Gori II - 3wtg's V150-4.2 Hub=105m 17.07.2019 12,6 3 18.364 1.457 16.396 1.301
Park Gori II - 2wtg's E-147 EP5-5MW Hub=126m 17.07.2019 10 2 14.793 1.479 13.208 1.321
Ruisi Wind Farm SH 7wtg's GE1.5xle 10,5 7 10.844 1.033 9.682 922
Other
Capex Summary
10 MW Range
GeneralElectric2XGE5.310.6MW
Business Plan - Financial ModelWind Farm - Qartli 2 - 2 X GE158-5.3 700 Hub=120.9m FX EUR-USD 1,12General Electric # WTG 2
# MW 10,6
CAPEX CAPEX USD 000s 15.350
WTG Supply and Installation EUR/MW 700.000 CAPEX USD 000s/MW 1.448USD/MW 784.000
*based on recent quotes WTG Supply and Installation USD 000s 8.310 8.310
Foundations USD 000s 896 9.206
Foundations EUR/WTG 400.000 Roads & Platforms USD 000s 560 9.766
USD/WTG 448.000 Electrical - Cabling USD 000s 314 10.080
* an average of recent projects Wind Farm Substation USD 000s 424 10.504
Grid Connection Fee USD 000s 2.627 13.131
Roads & Platforms EUR/WTG 250.000 Development USD 000s 890 14.021
USD/WTG 280.000 Project Design USD 000s 250 14.271
* average of quotes and projects Constr Management USD 000s 750 15.021
2,50% Contingency USD 000s 328 15.350
Electrical - Cabling EUR/WTG 140.000USD/WTG 156.800
* based on recent quotes
Wind Farm Substation EUR/MW 40.000USD/MW 44.800
* based on recent quotes
Grid Connection Fee EURUSD 2.627.055
* based on 16km single circuit OHL 220kV GSE (www.gse.com.ge) calc tool - length indicated by QWF
Development EUR/MW 75.000USD/MW 84.000
* environmental, premium, other...
Nordex3XN149-4.59MW
Business Plan - Financial ModelWind Farm - Park Gori II 3wtg's N149-4.5 Hub=105m 17.07.2019 FX EUR-USD 1,12Nordex # WTG 3
# MW 13,5
CAPEX CAPEX USD 000s 19.200
WTG Supply and Installation EUR/MW 700.000 CAPEX USD 000s/MW 1.422USD/MW 784.000
*based on recent quotes WTG Supply and Installation USD 000s 10.584 10.584
Foundations USD 000s 1.344 11.928
Foundations EUR/WTG 400.000 Roads & Platforms USD 000s 840 12.768
USD/WTG 448.000 Electrical - Cabling USD 000s 470 13.238
* an average of recent projects Wind Farm Substation USD 000s 540 13.778
Grid Connection Fee USD 000s 2.627 16.405
Roads & Platforms EUR/WTG 250.000 Development USD 000s 1.134 17.539
USD/WTG 280.000 Project Design USD 000s 250 17.789
* average of quotes and projects Constr Management USD 000s 1.000 18.789
2,50% Contingency USD 000s 410 19.200
Electrical - Cabling EUR/WTG 140.000USD/WTG 156.800
* based on recent quotes
Wind Farm Substation EUR/MW 40.000USD/MW 44.800
* based on recent quotes
Grid Connection Fee EURUSD 2.627.055
* based on 16km single circuit OHL 220kV GSE (www.gse.com.ge) calc tool - length indicated by QWF
Development EUR/MW 75.000USD/MW 84.000
* environmental, premium, other...
Siemens3XSWT142-4.1-8.2MW
Business Plan - Financial ModelWind Farm - Park Gori II 3wtg's SWT-DD-142-4.1 Hub=109m 12.07.2019 FX EUR-USD 1,12Siemens Gamesa # WTG 3
# MW 12,3
CAPEX CAPEX USD 000s 18.085
WTG Supply and Installation EUR/MW 700.000 CAPEX USD 000s/MW 1.470USD/MW 784.000
*based on recent quotes WTG Supply and Installation USD 000s 9.643 9.643
Foundations USD 000s 1.344 10.987
Foundations EUR/WTG 400.000 Roads & Platforms USD 000s 840 11.827
USD/WTG 448.000 Electrical - Cabling USD 000s 470 12.298
* an average of recent projects Wind Farm Substation USD 000s 492 12.790
Grid Connection Fee USD 000s 2.627 15.417
Roads & Platforms EUR/WTG 250.000 Development USD 000s 1.033 16.450
USD/WTG 280.000 Project Design USD 000s 250 16.700
* average of quotes and projects Constr Management USD 000s 1.000 17.700
2,50% Contingency USD 000s 385 18.085
Electrical - Cabling EUR/WTG 140.000USD/WTG 156.800
* based on recent quotes
Wind Farm Substation EUR/MW 40.000USD/MW 44.800
* based on recent quotes
Grid Connection Fee EURUSD 2.627.055
* based on 16km single circuit OHL 220kV GSE (www.gse.com.ge) calc tool - length indicated by QWF
Development EUR/MW 75.000USD/MW 84.000
* environmental, premium, other...
Vestas3XV150-4.1-8.4MW
Business Plan - Financial ModelWind Farm - Park Gori II 3wtg's V150-4.2 Hub=105m 17.07.2019 FX EUR-USD 1,12Vestas # WTG 3
# MW 12,6
CAPEX CAPEX USD 000s 18.364
WTG Supply and Installation EUR/MW 700.000 CAPEX USD 000s/MW 1.457USD/MW 784.000
*based on recent quotes WTG Supply and Installation USD 000s 9.878 9.878
Foundations USD 000s 1.344 11.222
Foundations EUR/WTG 400.000 Roads & Platforms USD 000s 840 12.062
USD/WTG 448.000 Electrical - Cabling USD 000s 470 12.533
* an average of recent projects Wind Farm Substation USD 000s 504 13.037
Grid Connection Fee USD 000s 2.627 15.664
Roads & Platforms EUR/WTG 250.000 Development USD 000s 1.058 16.722
USD/WTG 280.000 Project Design USD 000s 250 16.972
* average of quotes and projects Constr Management USD 000s 1.000 17.972
2,50% Contingency USD 000s 392 18.364
Electrical - Cabling EUR/WTG 140.000USD/WTG 156.800
* based on recent quotes
Wind Farm Substation EUR/MW 40.000USD/MW 44.800
* based on recent quotes
Grid Connection Fee EURUSD 2.627.055
* based on 16km single circuit OHL 220kV GSE (www.gse.com.ge) calc tool - length indicated by QWF
Development EUR/MW 75.000USD/MW 84.000
* environmental, premium, other...
Enercon2XE147-5MW-10MW
Business Plan - Financial ModelWind Farm - Park Gori II 2wtg's E-147 EP5-5MW Hub=126m 17.07.2019 FX EUR-USD 1,12Enercon # WTG 2
# MW 10
CAPEX CAPEX USD 000s 14.793
WTG Supply and Installation EUR/MW 700.000 CAPEX USD 000s/MW 1.479USD/MW 784.000
*based on recent quotes WTG Supply and Installation USD 000s 7.840 7.840
Foundations USD 000s 896 8.736
Foundations EUR/WTG 400.000 Roads & Platforms USD 000s 560 9.296
USD/WTG 448.000 Electrical - Cabling USD 000s 314 9.610
Wind Farm Substation USD 000s 400 10.010
* an average of recent projects Grid Connection Fee USD 000s 2.627 12.637
Development USD 000s 840 13.477
Roads & Platforms EUR/WTG 250.000 Project Design USD 000s 250 13.727
USD/WTG 280.000 Constr Management USD 000s 750 14.477
* average of quotes and projects 2,50% Contingency USD 000s 316 14.793
Electrical - Cabling EUR/WTG 140.000USD/WTG 156.800
* based on recent quotes
Wind Farm Substation EUR/MW 40.000USD/MW 44.800
* based on recent quotes
Grid Connection Fee EURUSD 2.627.055
* based on 16km single circuit OHL 220kV GSE (www.gse.com.ge) calc tool - length indicated by QWF
Development EUR/MW 75.000USD/MW 84.000
* environmental, premium, other...
7XGE1.5XLE10.5MW2ndhand
Business Plan - Financial ModelWind Farm - Ruisi Wind Farm SH 7wtg's GE1.5xle FX EUR-USD 1,12General Electric - Used machinery (GE 1.5 20-years old) # WTG 7
# MW 10,5
CAPEX CAPEX USD 000s 10.844
WTG Supply and Installation EUR/MW 115.000 CAPEX USD 000s/MW 1.033USD/MW 128.800
*based on recent quotes (sale, decommissioning, supply and installation) WTG Supply and Installation USD 000s 1.352 1.352
Foundations USD 000s 1.372 2.724
Foundations EUR/WTG 175.000 Roads & Platforms USD 000s 1.960 4.684
USD/WTG 196.000 Electrical - Cabling USD 000s 1.098 5.782
* an average of recent projects Wind Farm Substation USD 000s 420 6.202
Grid Connection Fee USD 000s 2.627 8.829
Roads & Platforms EUR/WTG 250.000 Development USD 000s 294 9.123
USD/WTG 280.000 Project Design USD 000s 250 9.373
* average of quotes and projects Constr Management USD 000s 1.250 10.623
2,50% Contingency USD 000s 221 10.844
Electrical - Cabling EUR/WTG 140.000USD/WTG 156.800
* based on recent quotes
Wind Farm Substation EUR/MW 40.000USD/MW 44.800
* based on recent quotes
Grid Connection Fee EURUSD 2.627.055
* based on 16km single circuit OHL 220kV GSE (www.gse.com.ge) calc tool
Development EUR/MW 25.000USD/MW 28.000
* environmental, premium, other...
FX EUR/USD1,12
Wind Farm Configuration MW No. WTG Capex Capex Capex Capex
Installed USD 000s USD 000s/MW EUR 000s EUR 000s/MW
4 wtg GE158-5.3 700 Hub=120.9m 21,2 4 27.007 1.274 24.113 1.137
5 wtg N149-4.5 Hub=105m 22,5 5 29.121 1.294 26.001 1.156
5 wtg's SWT-DD-142-4.1 Hub=109m 20,5 5 27.514 1.342 24.566 1.198
5 wtg's V150-4.2 Hub=105m 21 5 27.728 1.320 24.757 1.179
4 wtg's E-147 EP5-5MW Hub=126m 20 4 26.142 1.307 23.341 1.167
Ruisi Wind Farm SH 9wtg's GE1.5xle 13,5 9 12.494 925 11.155 826
Other
Capex Summary20 MW Range
Business Plan - Financial ModelWind Farm - 4 X GE158-5.3 700 Hub=120.9m FX EUR-USD 1,12General Electric # WTG 4
# MW 21,2
CAPEX CAPEX USD 000s 27.007
WTG Supply and Installation EUR/MW 700.000 CAPEX USD 000s/MW 1.274USD/MW 784.000
*based on recent quotes WTG Supply and Installation USD 000s 16.621 16.621
Foundations USD 000s 1.792 18.413
Foundations EUR/WTG 400.000 Roads & Platforms USD 000s 1.120 19.533
USD/WTG 448.000 Electrical - Cabling USD 000s 627 20.160
* an average of recent projects Wind Farm Substation USD 000s 848 21.008
Grid Connection Fee USD 000s 2.627 23.635
Roads & Platforms EUR/WTG 250.000 Development USD 000s 1.781 25.416
USD/WTG 280.000 Project Design USD 000s 250 25.666
* average of quotes and projects Constr Management USD 000s 750 26.416
2,50% Contingency USD 000s 591 27.007
Electrical - Cabling EUR/WTG 140.000USD/WTG 156.800
* based on recent quotes
Wind Farm Substation EUR/MW 40.000USD/MW 44.800
* based on recent quotes
Grid Connection Fee EURUSD 2.627.055
* based on 16km single circuit OHL 220kV GSE (www.gse.com.ge) calc tool - length indicated by QWF
Development EUR/MW 75.000USD/MW 84.000
* environmental, premium, other...
Business Plan - Financial ModelWind Farm - Park Gori II 4wtg's N149-4.5 Hub=105m FX EUR-USD 1,12Nordex # WTG 5
# MW 22,5
CAPEX CAPEX USD 000s 29.121
WTG Supply and Installation EUR/MW 700.000 CAPEX USD 000s/MW 1.294USD/MW 784.000
*based on recent quotes WTG Supply and Installation USD 000s 17.640 17.640
Foundations USD 000s 2.240 19.880
Foundations EUR/WTG 400.000 Roads & Platforms USD 000s 1.400 21.280
USD/WTG 448.000 Electrical - Cabling USD 000s 784 22.064
* an average of recent projects Wind Farm Substation USD 000s 900 22.964
Grid Connection Fee USD 000s 2.627 25.591
Roads & Platforms EUR/WTG 250.000 Development USD 000s 1.890 27.481
USD/WTG 280.000 Project Design USD 000s 250 27.731
* average of quotes and projects Constr Management USD 000s 750 28.481
2,50% Contingency USD 000s 640 29.121
Electrical - Cabling EUR/WTG 140.000USD/WTG 156.800
* based on recent quotes
Wind Farm Substation EUR/MW 40.000USD/MW 44.800
* based on recent quotes
Grid Connection Fee EURUSD 2.627.055
* based on 16km single circuit OHL 220kV GSE (www.gse.com.ge) calc tool - length indicated by QWF
Development EUR/MW 75.000USD/MW 84.000
* environmental, premium, other...
Business Plan - Financial ModelWind Farm - Park Gori II 5wtg's SWT-DD-142-4.1 Hub=109m FX EUR-USD 1,12Siemens Gamesa # WTG 5
# MW 20,5
CAPEX CAPEX USD 000s 27.514
WTG Supply and Installation EUR/MW 700.000 CAPEX USD 000s/MW 1.342USD/MW 784.000
*based on recent quotes WTG Supply and InstallationUSD 000s 16.072 16.072
Foundations USD 000s 2.240 18.312
Foundations EUR/WTG 400.000 Roads & Platforms USD 000s 1.400 19.712
USD/WTG 448.000 Electrical - Cabling USD 000s 784 20.496
* an average of recent projects Wind Farm Substation USD 000s 820 21.316
Grid Connection Fee USD 000s 2.627 23.943
Roads & Platforms EUR/WTG 250.000 Development USD 000s 1.722 25.665
USD/WTG 280.000 Project Design USD 000s 250 25.915
* average of quotes and projects Constr Management USD 000s 1.000 26.915
2,50% Contingency USD 000s 599 27.514
Electrical - Cabling EUR/WTG 140.000USD/WTG 156.800
* based on recent quotes
Wind Farm Substation EUR/MW 40.000USD/MW 44.800
* based on recent quotes
Grid Connection Fee EURUSD 2.627.055
* based on 16km single circuit OHL 220kV GSE (www.gse.com.ge) calc tool - length indicated by QWF
Development EUR/MW 75.000USD/MW 84.000
* environmental, premium, other...
Business Plan - Financial ModelWind Farm - Park Gori II 5wtg's V150-4.2 Hub=105m FX EUR-USD 1,12Vestas # WTG 5
# MW 21
CAPEX CAPEX USD 000s 27.728
WTG Supply and Installation EUR/MW 700.000 CAPEX USD 000s/MW 1.320USD/MW 784.000
*based on recent quotes WTG Supply and Installation USD 000s 16.464 16.464
Foundations USD 000s 2.240 18.704
Foundations EUR/WTG 400.000 Roads & Platforms USD 000s 1.400 20.104
USD/WTG 448.000 Electrical - Cabling USD 000s 784 20.888
* an average of recent projects Wind Farm Substation USD 000s 840 21.728
Grid Connection Fee USD 000s 2.627 24.355
Roads & Platforms EUR/WTG 250.000 Development USD 000s 1.764 26.119
USD/WTG 280.000 Project Design USD 000s 250 26.369
* average of quotes and projects Constr Management USD 000s 750 27.119
2,50% Contingency USD 000s 609 27.728
Electrical - Cabling EUR/WTG 140.000USD/WTG 156.800
* based on recent quotes
Wind Farm Substation EUR/MW 40.000USD/MW 44.800
* based on recent quotes
Grid Connection Fee EURUSD 2.627.055
* based on 16km single circuit OHL 220kV GSE (www.gse.com.ge) calc tool - length indicated by QWF
Development EUR/MW 75.000USD/MW 84.000
* environmental, premium, other...
Business Plan - Financial ModelWind Farm - Park Gori II 4wtg's E-147 EP5-5MW Hub=126m FX EUR-USD 1,12Enercon # WTG 4
# MW 20
CAPEX CAPEX USD 000s 26.142
WTG Supply and Installation EUR/MW 700.000 CAPEX USD 000s/MW 1.307USD/MW 784.000
*based on recent quotes WTG Supply and Installation USD 000s 15.680 15.680
Foundations USD 000s 1.792 17.472
Foundations EUR/WTG 400.000 Roads & Platforms USD 000s 1.120 18.592
USD/WTG 448.000 Electrical - Cabling USD 000s 627 19.219
Wind Farm Substation USD 000s 800 20.019
* an average of recent projects Grid Connection Fee USD 000s 2.627 22.646
Development USD 000s 1.680 24.326
Roads & Platforms EUR/WTG 250.000 Project Design USD 000s 250 24.576
USD/WTG 280.000 Constr Management USD 000s 1.000 25.576
* average of quotes and projects 2,50% Contingency USD 000s 566 26.142
Electrical - Cabling EUR/WTG 140.000USD/WTG 156.800
* based on recent quotes
Wind Farm Substation EUR/MW 40.000USD/MW 44.800
* based on recent quotes
Grid Connection Fee EURUSD 2.627.055
* based on 16km single circuit OHL 220kV GSE (www.gse.com.ge) calc tool - length indicated by QWF
Development EUR/MW 75.000USD/MW 84.000
* environmental, premium, other...
Business Plan - Financial ModelWind Farm - Ruisi Wind Farm SH 9wtg's GE1.5xle FX EUR-USD 1,12General Electric - Used machinery (GE 1.5 20-years old) # WTG 9
# MW 13,5
CAPEX CAPEX USD 000s 12.494
WTG Supply and Installation EUR/MW 115.000 CAPEX USD 000s/MW 925USD/MW 128.800
*based on recent quotes (sale, decommissioning, supply and installation) WTG Supply and Installation USD 000s 1.739 1.739
Foundations USD 000s 1.764 3.503
Foundations EUR/WTG 175.000 Roads & Platforms USD 000s 2.520 6.023
USD/WTG 196.000 Electrical - Cabling USD 000s 1.411 7.434
* an average of recent projects Wind Farm Substation USD 000s 540 7.974
Grid Connection Fee USD 000s 2.627 10.601
Roads & Platforms EUR/WTG 250.000 Development USD 000s 378 10.979
USD/WTG 280.000 Project Design USD 000s 250 11.229
* average of quotes and projects Constr Management USD 000s 1.000 12.229
2,50% Contingency USD 000s 265 12.494
Electrical - Cabling EUR/WTG 140.000USD/WTG 156.800
* based on recent quotes
Wind Farm Substation EUR/MW 40.000USD/MW 44.800
* based on recent quotes
Grid Connection Fee EURUSD 2.627.055
* based on 16km single circuit OHL 220kV GSE (www.gse.com.ge) calc tool
Development EUR/MW 25.000USD/MW 28.000
* environmental, premium, other...
ANNEX 6
OPEX
Annex 6
Operation and Maintenance Expenditure Calculations
2XGE5.3-10.6MW
Business Plan - Financial ModelWind Farm - Park Gori II - 2 X GE158-5.3 700 Hub=120.9mGeneral Electric
Estimated OPEX Costs in a Feed-in-Tariff Structure (no trading and/or balancing costs) Installed No. Annual AmountCapacity (MW) WTGs USD
10,6 2
OPEX Full Service Agreement (FSA) USD / year / MW 30.000 the median range of responses of recent studies* 318.000 318.000Maintenance of the transformer station and video system USD / year 22.000 recent estimates for a Romanian wind farm 22.000 22.000SCADA preventive maintenance USD / year / wtg 1.300 recent estimates for a Romanian wind farm 2.600 2.600WF internal power consumption USD / year 3.000 recent estimates for a Romanian wind farm 3.000 3.000Land lease expenses for wtg's USD / year / wtg 3.000 subject to location / place-holder 6.000 6.000Wind farm site security USD / year / wtg 5.000 10.000 10.000Wind farm insurance USD / year 10.000 detailed policy to be analyzed 10.000 10.000Noise measurements and air quality analysis should be included in FSA 0Maintenance of the aviation lights should be included in FSA 0Birds monitoring USD / year 3.000 3.000 3.000Different services: trouble shooting, USD / year / wtg 13.000 26.000 26.000elevators, vibration analysis, cranes services
Monitoring and troubleshooting service should be included in FSA 0Measurements, power curves checks - turbines should be included in FSA 0Spare parts, inventories costs USD / year /wtg 16.500 33.000 33.000Accounting and General Management USD / year 150.000 150.000 150.000Local Taxes USD / year subject to location 0Miscellaneous USD / wtg / year 4.000 8.000 8.000
Total Operating Costs USD /year 591.600
* New Energy Update Global Wind O&M Survey 2018
3XN149-4.5-9MW
Business Plan - Financial ModelWind Farm - Park Gori II 3 X N149-4.5 Hub=105m Nordex
Estimated OPEX Costs in a Feed-in-Tariff Structure (no trading and/or balancing costs) Installed No. Annual AmountCapacity (MW) WTGs USD
13,5 3
OPEX Full Service Agreement (FSA) USD / year / MW 30.000 the median range of responses of recent studies* 405.000 405.000Maintenance of the transformer station and video system USD / year 22.000 recent estimates for a Romanian wind farm 22.000 22.000SCADA preventive maintenance USD / year / wtg 1.300 recent estimates for a Romanian wind farm 3.900 3.900WF internal power consumption USD / year 3.000 recent estimates for a Romanian wind farm 3.000 3.000Land lease expenses for wtg's USD / year / wtg 3.000 subject to location / place-holder 9.000 9.000Wind farm site security USD / year / wtg 5.000 15.000 15.000Wind farm insurance USD / year 10.000 detailed policy to be analyzed 10.000 10.000Noise measurements and air quality analysis should be included in FSA 0Maintenance of the aviation lights should be included in FSA 0Birds monitoring USD / year 3.000 3.000 3.000Different services: trouble shooting, USD / year / wtg 13.000 39.000 39.000elevators, vibration analysis, cranes services
Monitoring and troubleshooting service should be included in FSA 0Measurements, power curves checks - turbines should be included in FSA 0Spare parts, inventories costs USD / year /wtg 16.500 49.500 49.500Accounting and General Management USD / year 150.000 150.000 150.000Local Taxes USD / year subject to location 0Miscellaneous USD / wtg / year 4.000 12.000 12.000
Total Operating Costs USD /year 721.400
* New Energy Update Global Wind O&M Survey 2018
3XSWT142-4.1-8.2MW
Business Plan - Financial ModelWind Farm - Park Gori II 3 X SWT-DD-142-4.1 Hub=109m Siemens Gamesa
Estimated OPEX Costs in a Feed-in-Tariff Structure (no trading and/or balancing costs) Installed No. Annual AmountCapacity (MW) WTGs USD
12,3 3
OPEX Full Service Agreement (FSA) USD / year / MW 30.000 the median range of responses of recent studies* 369.000 369.000Maintenance of the transformer station and video system USD / year 22.000 recent estimates for a Romanian wind farm 22.000 22.000SCADA preventive maintenance USD / year / wtg 1.300 recent estimates for a Romanian wind farm 3.900 3.900WF internal power consumption USD / year 3.000 recent estimates for a Romanian wind farm 3.000 3.000Land lease expenses for wtg's USD / year / wtg 3.000 subject to location / place-holder 9.000 9.000Wind farm site security USD / year / wtg 5.000 15.000 15.000Wind farm insurance USD / year 10.000 detailed policy to be analyzed 10.000 10.000Noise measurements and air quality analysis should be included in FSA 0Maintenance of the aviation lights should be included in FSA 0Birds monitoring USD / year 3.000 3.000 3.000Different services: trouble shooting, USD / year / wtg 13.000 39.000 39.000elevators, vibration analysis, cranes services
Monitoring and troubleshooting service should be included in FSA 0Measurements, power curves checks - turbines should be included in FSA 0Spare parts, inventories costs USD / year /wtg 16.500 49.500 49.500Accounting and General Management USD / year 150.000 150.000 150.000Local Taxes USD / year subject to location 0Miscellaneous USD / wtg / year 4.000 12.000 12.000
Total Operating Costs USD /year 685.400
* New Energy Update Global Wind O&M Survey 2018
3XV150-4.2-8.4MW
Business Plan - Financial ModelWind Farm - Park Gori II 3 X V150-4.2 Hub=105m Vestas
Estimated OPEX Costs in a Feed-in-Tariff Structure (no trading and/or balancing costs) Installed No. Annual AmountCapacity (MW) WTGs USD
12,6 3
OPEX Full Service Agreement (FSA) USD / year / MW 30.000 the median range of responses of recent studies* 378.000 378.000Maintenance of the transformer station and video system USD / year 22.000 recent estimates for a Romanian wind farm 22.000 22.000SCADA preventive maintenance USD / year / wtg 1.300 recent estimates for a Romanian wind farm 3.900 3.900WF internal power consumption USD / year 3.000 recent estimates for a Romanian wind farm 3.000 3.000Land lease expenses for wtg's USD / year / wtg 3.000 subject to location / place-holder 9.000 9.000Wind farm site security USD / year / wtg 5.000 15.000 15.000Wind farm insurance USD / year 10.000 detailed policy to be analyzed 10.000 10.000Noise measurements and air quality analysis should be included in FSA 0Maintenance of the aviation lights should be included in FSA 0Birds monitoring USD / year 3.000 3.000 3.000Different services: trouble shooting, USD / year / wtg 13.000 39.000 39.000elevators, vibration analysis, cranes services
Monitoring and troubleshooting service should be included in FSA 0Measurements, power curves checks - turbines should be included in FSA 0Spare parts, inventories costs USD / year /wtg 16.500 49.500 49.500Accounting and General Management USD / year 150.000 150.000 150.000Local Taxes USD / year subject to location 0Miscellaneous USD / wtg / year 4.000 12.000 12.000
Total Operating Costs USD /year 694.400
* New Energy Update Global Wind O&M Survey 2018
2XE147-5-10MW
Business Plan - Financial ModelWind Farm - Park Gori II2 X E-147 EP5-5MW Hub=126m Enercon
Estimated OPEX Costs in a Feed-in-Tariff Structure (no trading and/or balancing costs) Installed No. Annual AmountCapacity (MW) WTGs USD
10 2
OPEX Full Service Agreement (FSA) USD / year / MW 30.000 the median range of responses of recent studies* 300.000 300.000Maintenance of the transformer station and video system USD / year 22.000 recent estimates for a Romanian wind farm 22.000 22.000SCADA preventive maintenance USD / year / wtg 1.300 recent estimates for a Romanian wind farm 2.600 2.600WF internal power consumption USD / year 3.000 recent estimates for a Romanian wind farm 3.000 3.000Land lease expenses for wtg's USD / year / wtg 3.000 subject to location / place-holder 6.000 6.000Wind farm site security USD / year / wtg 5.000 10.000 10.000Wind farm insurance USD / year 10.000 detailed policy to be analyzed 10.000 10.000Noise measurements and air quality analysis should be included in FSA 0Maintenance of the aviation lights should be included in FSA 0Birds monitoring USD / year 3.000 3.000 3.000Different services: trouble shooting, USD / year / wtg 13.000 26.000 26.000elevators, vibration analysis, cranes services
Monitoring and troubleshooting service should be included in FSA 0Measurements, power curves checks - turbines should be included in FSA 0Spare parts, inventories costs USD / year /wtg 16.500 33.000 33.000Accounting and General Management USD / year 150.000 150.000 150.000Local Taxes USD / year subject to location 0Miscellaneous USD / wtg / year 4.000 8.000 8.000
Total Operating Costs USD /year 573.600
* New Energy Update Global Wind O&M Survey 2018
7XGE1.5xle13.5MW
Business Plan - Financial ModelWind Farm - Ruisi Wind Farm SH 7 X GE1.5xle (20-year old decommissioned)General Electric
Estimated OPEX Costs in a Feed-in-Tariff Structure (no trading and/or balancing costs) Installed No. Annual AmountCapacity (MW) WTGs USD
10,5 7
OPEX Full Service Agreement (FSA) USD / year / MW 30.000 the median range of responses of recent studies* 315.000 315.000Maintenance of the transformer station and video system USD / year 22.000 recent estimates for a Romanian wind farm 22.000 22.000SCADA preventive maintenance USD / year / wtg 1.300 recent estimates for a Romanian wind farm 9.100 9.100WF internal power consumption USD / year 5.000 recent estimates for a Romanian wind farm 5.000 5.000Land lease expenses for wtg's USD / year / wtg 3.000 subject to location / place-holder 21.000 21.000Wind farm site security USD / year / wtg 5.000 35.000 35.000Wind farm insurance USD / year 10.000 detailed policy to be analyzed 10.000 10.000Noise measurements and air quality analysis should be included in FSA 0Maintenance of the aviation lights should be included in FSA 0Birds monitoring USD / year 3.000 3.000 3.000Different services: trouble shooting, USD / year / wtg 13.000 91.000 91.000elevators, vibration analysis, cranes services
Monitoring and troubleshooting service should be included in FSA 0Measurements, power curves checks - turbines should be included in FSA 0Spare parts, inventories costs USD / year /wtg 16.500 115.500 115.500Accounting and General Management USD / year 150.000 150.000 150.000Local Taxes USD / year subject to location 0Miscellaneous USD / wtg / year 4.000 28.000 28.000
Total Operating Costs USD /year 804.600
* New Energy Update Global Wind O&M Survey 2018
ANNEX 7
FINANCIAL SPREADSHEETS ALL
Annex 7
Financial Spreadsheets
Financial Spreadsheets Qartli Expansion P75 Aug 2019 all ranges.xlsx
Item Unit GE Nordex Siemens Vestas Enercon GE2 X GE Gamesa 7 X GE 1.5XL
Cypress 5.3 3 X N 149 3 X SWT 142 3 X V150-4.2 2 X E147-5 2nd Hand
CAPEX USD 000s 15.350 19.200 18.085 18.364 14.793 10.844
Equity USD 000s 7.675 9.600 9.043 9.182 9.182 5.422
Debt* USD 000s 7.675 9.600 9.043 9.182 7.397 5.422
Project IRR 10,72% 10,84% 10,28% 11,00% 8,74% 8,41%
[Levered] Equity IRR 21,10% 21,29% 20,35% 21,57% 17,83% 17,70%
Opex p.a. (1st yr) USD 000s 592 721 685 694 574 805
Installed Capacity MW 10,6 13,5 12,3 12,6 10 10,5
No WTG 2 3 3 3 2 7
Capacity / WTG MW 5,3 4,5 4,1 4,2 5 1,5
Capacity Factor P75 51,50% 50,60% 50,80% 52,40% 47,10% 40,30%
Annual Output MWh 47.821 59.840 54.736 57.837 41.260 37.068
Capex / MW USD 000s/MW 1.448 1.422 1.470 1.457 1.479 1.033
Opex / MWh USD 12,38 12,05 12,51 12,00 13,91 21,72
Min DSCR 1,93 1,94 1,87 1,97 1,68 1,67Avg DSCR 1,98 2,00 1,93 2,02 1,74 1,74PLCR 3,07 3,09 2,97 3,13 2,66 2,58LLCR 1,99 2,00 1,93 2,03 1,74 1,75
* Senior Debt - No-Recourse project finance - mortgage-style - 10 years (to match PPA tenor) - 50/50 - 6% USD p.a. Interest (all fees included)
Qartli Wind Farm Extension - 10 MW Range - Selected Financial Model FiguresP 75 production estimates
2XGE
5.3-1
0.6MW
Busin
ess
Plan
- Fi
nanc
ial M
odel
Park
Gor
i II -
2 X
GE1
58-5
.3 7
00 H
ub=1
20.9
mLi
fe-ti
me
of P
roje
ct1
23
45
67
89
1011
1213
1415
1617
1819
2021
2223
2425
26Li
fe-ti
me
of F
eed-
in-ta
riff
12
34
56
78
910
Inst
alle
d Ca
paci
ty*
MW
10,6
2 X
GE1
58-5
.3 7
00 H
ub=1
20.9
mCA
PEX
USD
000
s15
.350
NET
act
ual p
rodu
ctio
nM
Wh
51,5
0%P7
547
.821
47.8
2147
.821
47.8
2147
.821
47.8
2147
.821
47.8
2147
.821
47.8
2147
.821
47.8
2147
.821
47.8
2147
.821
47.8
2147
.821
47.8
2147
.821
47.8
2147
.821
47.8
2147
.821
47.8
2147
.821
Feed
-in-ta
riff
USD
/MW
h60
6060
6060
6060
6060
6060
Post
feed
-in-ta
riff
USD
/MW
h50
5050
5050
5050
5050
5050
5050
5050
50Re
venu
esUS
D 0
00s
2.86
92.
869
2.86
92.
869
2.86
92.
869
2.86
92.
869
2.86
92.
869
2.39
12.
391
2.39
12.
391
2.39
12.
391
2.39
12.
391
2.39
12.
391
2.39
12.
391
2.39
12.
391
2.39
1
Ope
ratin
g Co
sts*
USD
000
s59
21,
00%
592
598
604
610
616
622
628
635
641
647
654
660
667
674
680
687
694
701
708
715
722
730
737
744
752
* cu
rren
t ful
l FSA
EUR
900
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pera
ting
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me
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277
2.27
12.
265
2.25
92.
253
2.24
72.
241
2.23
52.
228
2.22
21.
737
1.73
11.
724
1.71
71.
711
1.70
41.
697
1.69
01.
683
1.67
61.
669
1.66
11.
654
1.64
71.
639
Dep
reci
atio
nUS
D 0
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2076
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
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00
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Inco
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1.51
01.
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1.49
81.
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1.48
61.
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1.47
31.
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1.46
11.
454
970
963
956
950
943
936
929
922
915
1.67
61.
669
1.66
11.
654
1.64
71.
639
Corp
orat
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com
e Ta
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D 0
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15%
226
226
225
224
223
222
221
220
219
218
145
144
143
142
141
140
139
138
137
251
250
249
248
247
246
Net
Inco
me
USD
000
s1.
283
1.27
81.
273
1.26
81.
263
1.25
81.
252
1.24
71.
242
1.23
682
481
981
380
780
279
679
078
477
81.
424
1.41
81.
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1.40
61.
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Free
Cas
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D 0
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2.05
12.
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2.04
12.
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2.03
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2.02
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92.
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1.59
21.
586
1.58
01.
575
1.56
91.
563
1.55
71.
552
1.54
61.
424
1.41
81.
412
1.40
61.
400
1.39
3D
ivid
ends
Tax
USD
000
s5%
103
102
102
102
102
101
101
101
100
100
8079
7979
7878
7878
7771
7171
7070
70N
et F
ree
Cash
Flo
wUS
D 0
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1.94
81.
943
1.93
91.
934
1.92
91.
924
1.91
91.
914
1.90
91.
903
1.51
21.
507
1.50
11.
496
1.49
11.
485
1.48
01.
474
1.46
81.
353
1.34
71.
342
1.33
61.
330
1.32
4
Initi
al In
vest
men
t (CA
PEX)
USD
000
s-1
5.35
0
Tota
l Cas
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ows
USD
000
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01.
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1.94
31.
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1.93
41.
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1.92
41.
919
1.91
41.
909
1.90
31.
512
1.50
71.
501
1.49
61.
491
1.48
51.
480
1.47
41.
468
1.35
31.
347
1.34
21.
336
1.33
01.
324
IRR
- pro
ject
retu
rn10
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With
deb
t fin
anci
ng
Deb
t am
ount
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000
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23
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Tota
l num
ber o
f per
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(rep
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clud
ing
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ees
1010
1010
1010
1010
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Prin
cipa
l (@
the
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nnin
g of
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7675
7675
7675
7675
7675
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7675
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Tota
l Ope
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7.09
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Ope
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BITD
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D 0
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2.27
72.
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2.26
52.
259
2.25
32.
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2.24
12.
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2.22
82.
222
1.73
71.
731
1.72
41.
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1.71
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1.69
71.
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1.68
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1.66
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1.65
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Dep
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Inco
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970
963
956
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943
936
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1.67
61.
669
1.66
11.
654
1.64
71.
639
Corp
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com
e Ta
xUS
D 0
00s
15%
157
162
166
171
177
182
188
195
202
209
145
144
143
142
141
140
139
138
137
251
250
249
248
247
246
Net
Inco
me
USD
000
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291
794
397
11.
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1.03
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1.10
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144
1.18
682
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380
780
279
679
078
477
81.
424
1.41
81.
412
1.40
61.
400
1.39
3
Free
Cas
h Fl
ow b
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iden
dsUS
D 0
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1.65
91.
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1.71
01.
739
1.76
91.
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1.83
61.
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1.91
21.
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1.59
21.
586
1.58
01.
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1.56
91.
563
1.55
71.
552
1.54
61.
424
1.41
81.
412
1.40
61.
400
1.39
3D
ivid
ends
Tax
USD
000
s5%
8384
8687
8890
9294
9698
8079
7979
7878
7878
7771
7171
7070
70N
et F
ree
Cash
Flo
wUS
D 0
00s
1.57
61.
600
1.62
51.
652
1.68
01.
711
1.74
41.
779
1.81
61.
856
1.51
21.
507
1.50
11.
496
1.49
11.
485
1.48
01.
474
1.46
81.
353
1.34
71.
342
1.33
61.
330
1.32
4
Tota
l Cas
h Fl
ows
for E
quity
Ret
urn
Calc
sEn
terp
rise
Valu
e Pa
idUS
D 0
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-15.
350
Deb
t Rec
eive
dUS
D 0
00s
7.67
5Fr
ee C
ash
Flow
sUS
D 0
00s
01.
576
1.60
01.
625
1.65
21.
680
1.71
11.
744
1.77
91.
816
1.85
61.
512
1.50
71.
501
1.49
61.
491
1.48
51.
480
1.47
41.
468
1.35
31.
347
1.34
21.
336
1.33
01.
324
Net
Cas
h Fl
ows
USD
000
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.675
1.57
61.
600
1.62
51.
652
1.68
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711
1.74
41.
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1.81
61.
856
1.51
21.
507
1.50
11.
496
1.49
11.
485
1.48
01.
474
1.46
81.
353
1.34
71.
342
1.33
61.
330
1.32
4[L
ever
aged
Equ
ity] I
RR21
,10%
Indi
cativ
e Fi
nanc
ial C
over
Rat
io C
alcu
latio
nsCa
sh b
efor
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ng2.
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2.11
02.
099
2.08
82.
077
2.06
52.
052
2.04
02.
026
2.01
21.
592
1.58
61.
580
1.57
51.
569
1.56
31.
557
1.55
21.
546
1.42
41.
418
1.41
21.
406
1.40
01.
393
Deb
t Ser
vice
1.04
31.
043
1.04
31.
043
1.04
31.
043
1.04
31.
043
1.04
31.
043
Deb
t Ser
vice
Cov
er R
atio
2,03
2,02
2,01
2,00
1,99
1,98
1,97
1,96
1,94
1,93
Min
DSC
R1,
93Av
g D
SCR
1,98
Proj
ect L
ife C
over
Rat
io6,
00%
3,07
Loan
Life
Cov
er R
atio
6,00
%1,
99
3XN149-4.5-9
MW
Busin
ess
Plan
- Fi
nanc
ial M
odel
Park
Gor
i II 3
wtg
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149-
4.5
Hub
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m 1
7.07
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9Li
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me
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roje
ct1
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45
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89
1011
1213
1415
1617
1819
2021
2223
2425
26Li
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me
of F
eed-
in-ta
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34
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910
Inst
alle
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paci
ty*
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149-
4.5
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9CA
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act
ual p
rodu
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nM
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559
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59.8
4059
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59.8
4059
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59.8
4059
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59.8
4059
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59.8
4059
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59.8
4059
.840
59.8
4059
.840
59.8
4059
.840
59.8
4059
.840
59.8
4059
.840
59.8
4059
.840
59.8
4059
.840
Feed
-in-ta
riff
USD
/MW
h60
6060
6060
6060
6060
6060
Post
feed
-in-ta
riff
USD
/MW
h50
5050
5050
5050
5050
5050
5050
5050
50Re
venu
esUS
D 0
00s
3.59
03.
590
3.59
03.
590
3.59
03.
590
3.59
03.
590
3.59
03.
590
2.99
22.
992
2.99
22.
992
2.99
22.
992
2.99
22.
992
2.99
22.
992
2.99
22.
992
2.99
22.
992
2.99
2
Ope
ratin
g Co
sts*
USD
000
s72
11,
00%
721
728
735
743
750
758
765
773
781
789
796
804
812
821
829
837
845
854
862
871
880
889
897
906
915
* cu
rren
t ful
l FSA
EUR
900
k p.
a.O
pera
ting
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me
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000
s2.
869
2.86
22.
855
2.84
82.
840
2.83
32.
825
2.81
72.
810
2.80
22.
196
2.18
82.
180
2.17
12.
163
2.15
52.
147
2.13
82.
130
2.12
12.
112
2.10
32.
095
2.08
62.
076
Dep
reci
atio
nUS
D 0
00s
2096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
00
00
00
0
Inco
me
Befo
re T
axUS
D 0
00s
1.90
91.
902
1.89
51.
888
1.88
01.
873
1.86
51.
857
1.85
01.
842
1.23
61.
228
1.22
01.
211
1.20
31.
195
1.18
71.
178
1.17
02.
121
2.11
22.
103
2.09
52.
086
2.07
6
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
286
285
284
283
282
281
280
279
277
276
185
184
183
182
180
179
178
177
175
318
317
316
314
313
311
Net
Inco
me
USD
000
s1.
623
1.61
71.
611
1.60
41.
598
1.59
21.
585
1.57
91.
572
1.56
61.
050
1.04
31.
037
1.03
01.
023
1.01
61.
009
1.00
199
41.
803
1.79
51.
788
1.78
01.
773
1.76
5
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
2.58
32.
577
2.57
12.
564
2.55
82.
552
2.54
52.
539
2.53
22.
526
2.01
02.
003
1.99
71.
990
1.98
31.
976
1.96
91.
961
1.95
41.
803
1.79
51.
788
1.78
01.
773
1.76
5D
ivid
ends
Tax
USD
000
s5%
129
129
129
128
128
128
127
127
127
126
101
100
100
9999
9998
9898
9090
8989
8988
Net
Fre
e Ca
sh F
low
USD
000
s2.
454
2.44
82.
442
2.43
62.
430
2.42
42.
418
2.41
22.
406
2.39
91.
910
1.90
31.
897
1.89
01.
884
1.87
71.
870
1.86
31.
856
1.71
31.
706
1.69
91.
691
1.68
41.
677
Initi
al In
vest
men
t (CA
PEX)
USD
000
s-1
9.20
0
Tota
l Cas
h Fl
ows
USD
000
s-1
9.20
02.
454
2.44
82.
442
2.43
62.
430
2.42
42.
418
2.41
22.
406
2.39
91.
910
1.90
31.
897
1.89
01.
884
1.87
71.
870
1.86
31.
856
1.71
31.
706
1.69
91.
691
1.68
41.
677
IRR
- pro
ject
retu
rn10
,84%
With
deb
t fin
anci
ng
Deb
t am
ount
USD
000
s9.
600
50%
Perio
d1
23
45
67
89
10In
tere
st ra
te6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
Tota
l num
ber o
f per
iods
(rep
aym
ents
)in
clud
ing
all f
ees
1010
1010
1010
1010
1010
Prin
cipa
l (@
the
begi
nnin
g of
repa
ymen
t per
iod)
9.60
09.
600
9.60
09.
600
9.60
09.
600
9.60
09.
600
9.60
09.
600
Tota
l Ope
ning
Deb
t Fac
ility
#1
9.60
08.
872
8.10
07.
281
6.41
45.
494
4.52
03.
486
2.39
11.
231
Tota
l Rep
aym
ent
(Int+
Prin
cipa
l)(1
.304
)(1
.304
)(1
.304
)(1
.304
)(1
.304
)(1
.304
)(1
.304
)(1
.304
)(1
.304
)(1
.304
)Pr
inci
pal P
aym
ent
(728
)(7
72)
(818
)(8
67)
(920
)(9
75)
(1.0
33)
(1.0
95)
(1.1
61)
(1.2
31)
Inte
rest
Pay
men
t(5
76)
(532
)(4
86)
(437
)(3
85)
(330
)(2
71)
(209
)(1
43)
(74)
Clos
ing
Deb
t8.
872
8.10
07.
281
6.41
45.
494
4.52
03.
486
2.39
11.
231
(0)
Ope
ratin
g In
com
e / E
BITD
AUS
D 0
00s
2.86
92.
862
2.85
52.
848
2.84
02.
833
2.82
52.
817
2.81
02.
802
2.19
62.
188
2.18
02.
171
2.16
32.
155
2.14
72.
138
2.13
02.
121
2.11
22.
103
2.09
52.
086
2.07
6
Dep
reci
atio
n96
096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
00
00
00
0In
tere
st P
aym
ents
576
532
486
437
385
330
271
209
143
740
00
00
00
00
00
00
00
Inco
me
Befo
re T
axUS
D 0
00s
1.33
31.
370
1.40
91.
451
1.49
51.
543
1.59
41.
648
1.70
61.
768
1.23
61.
228
1.22
01.
211
1.20
31.
195
1.18
71.
178
1.17
02.
121
2.11
22.
103
2.09
52.
086
2.07
6
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
200
205
211
218
224
231
239
247
256
265
185
184
183
182
180
179
178
177
175
318
317
316
314
313
311
Net
Inco
me
USD
000
s1.
133
1.16
41.
198
1.23
31.
271
1.31
11.
355
1.40
11.
450
1.50
31.
050
1.04
31.
037
1.03
01.
023
1.01
61.
009
1.00
199
41.
803
1.79
51.
788
1.78
01.
773
1.76
5
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
2.09
32.
124
2.15
82.
193
2.23
12.
271
2.31
52.
361
2.41
02.
463
2.01
02.
003
1.99
71.
990
1.98
31.
976
1.96
91.
961
1.95
41.
803
1.79
51.
788
1.78
01.
773
1.76
5D
ivid
ends
Tax
USD
000
s5%
105
106
108
110
112
114
116
118
121
123
101
100
100
9999
9998
9898
9090
8989
8988
Net
Fre
e Ca
sh F
low
USD
000
s1.
989
2.01
82.
050
2.08
32.
119
2.15
82.
199
2.24
32.
290
2.34
01.
910
1.90
31.
897
1.89
01.
884
1.87
71.
870
1.86
31.
856
1.71
31.
706
1.69
91.
691
1.68
41.
677
Tota
l Cas
h Fl
ows
for E
quity
Ret
urn
Calc
sEn
terp
rise
Valu
e Pa
idUS
D 0
00s
-19.
200
Deb
t Rec
eive
dUS
D 0
00s
9.60
0Fr
ee C
ash
Flow
sUS
D 0
00s
01.
989
2.01
82.
050
2.08
32.
119
2.15
82.
199
2.24
32.
290
2.34
01.
910
1.90
31.
897
1.89
01.
884
1.87
71.
870
1.86
31.
856
1.71
31.
706
1.69
91.
691
1.68
41.
677
Net
Cas
h Fl
ows
USD
000
s-9
.600
1.98
92.
018
2.05
02.
083
2.11
92.
158
2.19
92.
243
2.29
02.
340
1.91
01.
903
1.89
71.
890
1.88
41.
877
1.87
01.
863
1.85
61.
713
1.70
61.
699
1.69
11.
684
1.67
7[L
ever
aged
Equ
ity] I
RR21
,29%
Indi
cativ
e Fi
nanc
ial C
over
Rat
io C
alcu
latio
nsCa
sh b
efor
e fin
anci
ng2.
669
2.65
72.
644
2.63
02.
616
2.60
12.
586
2.57
02.
554
2.53
72.
010
2.00
31.
997
1.99
01.
983
1.97
61.
969
1.96
11.
954
1.80
31.
795
1.78
81.
780
1.77
31.
765
Deb
t Ser
vice
1.30
41.
304
1.30
41.
304
1.30
41.
304
1.30
41.
304
1.30
41.
304
Deb
t Ser
vice
Cov
er R
atio
2,05
2,04
2,03
2,02
2,01
1,99
1,98
1,97
1,96
1,94
Min
DSC
R1,
94Av
g D
SCR
2,00
Proj
ect L
ife C
over
Rat
io6,
00%
3,09
Loan
Life
Cov
er R
atio
6,00
%2,
00
3XSW
T142-4.1-8
.2MW
Busin
ess
Plan
- Fi
nanc
ial M
odel
Park
Gor
i II 3
wtg
's S
WT-
DD
-142
-4.1
Hub
=109
m 1
2.07
.201
9Li
fe-ti
me
of P
roje
ct1
23
45
67
89
1011
1213
1415
1617
1819
2021
2223
2425
26Li
fe-ti
me
of F
eed-
in-ta
riff
12
34
56
78
910
Inst
alle
d Ca
paci
ty*
MW
12,3
2wtg
's S
WT-
DD
-142
-4.1
Hub
=109
m 1
2.07
.201
9CA
PEX
USD
000
s18
.085
NET
act
ual p
rodu
ctio
nM
Wh
50,8
0%P7
554
.736
54.7
3654
.736
54.7
3654
.736
54.7
3654
.736
54.7
3654
.736
54.7
3654
.736
54.7
3654
.736
54.7
3654
.736
54.7
3654
.736
54.7
3654
.736
54.7
3654
.736
54.7
3654
.736
54.7
3654
.736
Feed
-in-ta
riff
USD
/MW
h60
6060
6060
6060
6060
6060
Post
feed
-in-ta
riff
USD
/MW
h50
5050
5050
5050
5050
5050
5050
5050
50Re
venu
esUS
D 0
00s
3.28
43.
284
3.28
43.
284
3.28
43.
284
3.28
43.
284
3.28
43.
284
2.73
72.
737
2.73
72.
737
2.73
72.
737
2.73
72.
737
2.73
72.
737
2.73
72.
737
2.73
72.
737
2.73
7
Ope
ratin
g Co
sts*
USD
000
s68
51,
00%
685
692
699
706
713
720
727
734
742
749
757
764
772
780
787
795
803
811
819
828
836
844
853
861
870
* cu
rren
t ful
l FSA
EUR
900
k p.
a.O
pera
ting
Inco
me
/ EBI
TDA
USD
000
s2.
599
2.59
22.
585
2.57
82.
571
2.56
42.
557
2.55
02.
542
2.53
51.
980
1.97
31.
965
1.95
71.
949
1.94
21.
934
1.92
61.
917
1.90
91.
901
1.89
31.
884
1.87
61.
867
Dep
reci
atio
nUS
D 0
00s
2090
490
490
490
490
490
490
490
490
490
490
490
490
490
490
490
490
490
490
40
00
00
0
Inco
me
Befo
re T
axUS
D 0
00s
1.69
51.
688
1.68
11.
674
1.66
71.
660
1.65
31.
645
1.63
81.
631
1.07
61.
068
1.06
11.
053
1.04
51.
037
1.02
91.
021
1.01
31.
909
1.90
11.
893
1.88
41.
876
1.86
7
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
254
253
252
251
250
249
248
247
246
245
161
160
159
158
157
156
154
153
152
286
285
284
283
281
280
Net
Inco
me
USD
000
s1.
441
1.43
51.
429
1.42
31.
417
1.41
11.
405
1.39
91.
392
1.38
691
590
890
289
588
888
287
586
886
11.
623
1.61
61.
609
1.60
21.
594
1.58
7
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
2.34
52.
339
2.33
32.
327
2.32
12.
315
2.30
92.
303
2.29
72.
290
1.81
91.
812
1.80
61.
799
1.79
31.
786
1.77
91.
772
1.76
51.
623
1.61
61.
609
1.60
21.
594
1.58
7D
ivid
ends
Tax
USD
000
s5%
117
117
117
116
116
116
115
115
115
115
9191
9090
9089
8989
8881
8180
8080
79N
et F
ree
Cash
Flo
wUS
D 0
00s
2.22
82.
222
2.21
72.
211
2.20
52.
199
2.19
42.
188
2.18
22.
176
1.72
81.
722
1.71
61.
709
1.70
31.
697
1.69
01.
684
1.67
71.
542
1.53
51.
528
1.52
11.
515
1.50
8
Initi
al In
vest
men
t (CA
PEX)
USD
000
s-1
8.08
5
Tota
l Cas
h Fl
ows
USD
000
s-1
8.08
52.
228
2.22
22.
217
2.21
12.
205
2.19
92.
194
2.18
82.
182
2.17
61.
728
1.72
21.
716
1.70
91.
703
1.69
71.
690
1.68
41.
677
1.54
21.
535
1.52
81.
521
1.51
51.
508
IRR
- pro
ject
retu
rn10
,28%
With
deb
t fin
anci
ng
Deb
t am
ount
USD
000
s9.
043
50%
Perio
d1
23
45
67
89
10In
tere
st ra
te6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
Tota
l num
ber o
f per
iods
(rep
aym
ents
)in
clud
ing
all f
ees
1010
1010
1010
1010
1010
Prin
cipa
l (@
the
begi
nnin
g of
repa
ymen
t per
iod)
9.04
39.
043
9.04
39.
043
9.04
39.
043
9.04
39.
043
9.04
39.
043
Tota
l Ope
ning
Deb
t Fac
ility
#1
9.04
38.
356
7.62
96.
858
6.04
15.
175
4.25
73.
284
2.25
21.
159
Tota
l Rep
aym
ent
(Int+
Prin
cipa
l)(1
.229
)(1
.229
)(1
.229
)(1
.229
)(1
.229
)(1
.229
)(1
.229
)(1
.229
)(1
.229
)(1
.229
)Pr
inci
pal P
aym
ent
(686
)(7
27)
(771
)(8
17)
(866
)(9
18)
(973
)(1
.032
)(1
.093
)(1
.159
)In
tere
st P
aym
ent
(543
)(5
01)
(458
)(4
12)
(362
)(3
11)
(255
)(1
97)
(135
)(7
0)Cl
osin
g D
ebt
8.35
67.
629
6.85
86.
041
5.17
54.
257
3.28
42.
252
1.15
9(0
)
Ope
ratin
g In
com
e / E
BITD
AUS
D 0
00s
2.59
92.
592
2.58
52.
578
2.57
12.
564
2.55
72.
550
2.54
22.
535
1.98
01.
973
1.96
51.
957
1.94
91.
942
1.93
41.
926
1.91
71.
909
1.90
11.
893
1.88
41.
876
1.86
7
Dep
reci
atio
n90
490
490
490
490
490
490
490
490
490
490
490
490
490
490
490
490
490
490
40
00
00
0In
tere
st P
aym
ents
543
501
458
412
362
311
255
197
135
700
00
00
00
00
00
00
00
Inco
me
Befo
re T
axUS
D 0
00s
1.15
21.
187
1.22
31.
263
1.30
51.
349
1.39
71.
448
1.50
31.
561
1.07
61.
068
1.06
11.
053
1.04
51.
037
1.02
91.
021
1.01
31.
909
1.90
11.
893
1.88
41.
876
1.86
7
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
173
178
184
189
196
202
210
217
225
234
161
160
159
158
157
156
154
153
152
286
285
284
283
281
280
Net
Inco
me
USD
000
s98
01.
009
1.04
01.
073
1.10
91.
147
1.18
81.
231
1.27
81.
327
915
908
902
895
888
882
875
868
861
1.62
31.
616
1.60
91.
602
1.59
41.
587
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
1.88
41.
913
1.94
41.
977
2.01
32.
051
2.09
22.
135
2.18
22.
231
1.81
91.
812
1.80
61.
799
1.79
31.
786
1.77
91.
772
1.76
51.
623
1.61
61.
609
1.60
21.
594
1.58
7D
ivid
ends
Tax
USD
000
s5%
9496
9799
101
103
105
107
109
112
9191
9090
9089
8989
8881
8180
8080
79N
et F
ree
Cash
Flo
wUS
D 0
00s
1.79
01.
817
1.84
71.
879
1.91
31.
949
1.98
72.
029
2.07
32.
120
1.72
81.
722
1.71
61.
709
1.70
31.
697
1.69
01.
684
1.67
71.
542
1.53
51.
528
1.52
11.
515
1.50
8
Tota
l Cas
h Fl
ows
for E
quity
Ret
urn
Calc
sEn
terp
rise
Valu
e Pa
idUS
D 0
00s
-18.
085
Deb
t Rec
eive
dUS
D 0
00s
9.04
3Fr
ee C
ash
Flow
sUS
D 0
00s
01.
790
1.81
71.
847
1.87
91.
913
1.94
91.
987
2.02
92.
073
2.12
01.
728
1.72
21.
716
1.70
91.
703
1.69
71.
690
1.68
41.
677
1.54
21.
535
1.52
81.
521
1.51
51.
508
Net
Cas
h Fl
ows
USD
000
s-9
.043
1.79
01.
817
1.84
71.
879
1.91
31.
949
1.98
72.
029
2.07
32.
120
1.72
81.
722
1.71
61.
709
1.70
31.
697
1.69
01.
684
1.67
71.
542
1.53
51.
528
1.52
11.
515
1.50
8[L
ever
aged
Equ
ity] I
RR20
,35%
Indi
cativ
e Fi
nanc
ial C
over
Rat
io C
alcu
latio
nsCa
sh b
efor
e fin
anci
ng2.
426
2.41
42.
402
2.38
92.
376
2.36
22.
347
2.33
22.
317
2.30
11.
819
1.81
21.
806
1.79
91.
793
1.78
61.
779
1.77
21.
765
1.62
31.
616
1.60
91.
602
1.59
41.
587
Deb
t Ser
vice
1.22
91.
229
1.22
91.
229
1.22
91.
229
1.22
91.
229
1.22
91.
229
Deb
t Ser
vice
Cov
er R
atio
1,97
1,97
1,95
1,94
1,93
1,92
1,91
1,90
1,89
1,87
Min
DSC
R1,
87Av
g D
SCR
1,93
Proj
ect L
ife C
over
Rat
io6,
00%
2,97
Loan
Life
Cov
er R
atio
6,00
%1,
93
3XV1
50-4.2-8.4MW
Busin
ess
Plan
- Fi
nanc
ial M
odel
Park
Gor
i II 3
wtg
's V
150-
4.2
Hub
=105
m 1
7.07
.201
9Li
fe-ti
me
of P
roje
ct1
23
45
67
89
1011
1213
1415
1617
1819
2021
2223
2425
26Li
fe-ti
me
of F
eed-
in-ta
riff
12
34
56
78
910
Inst
alle
d Ca
paci
ty*
MW
12,6
2wtg
's V
150-
4.2
Hub
=105
m 1
7.07
.201
9CA
PEX
USD
000
s18
.364
NET
act
ual p
rodu
ctio
nM
Wh
52,4
0%P7
557
.837
57.8
3757
.837
57.8
3757
.837
57.8
3757
.837
57.8
3757
.837
57.8
3757
.837
57.8
3757
.837
57.8
3757
.837
57.8
3757
.837
57.8
3757
.837
57.8
3757
.837
57.8
3757
.837
57.8
3757
.837
Feed
-in-ta
riff
USD
/MW
h60
6060
6060
6060
6060
6060
Post
feed
-in-ta
riff
USD
/MW
h50
5050
5050
5050
5050
5050
5050
5050
50Re
venu
esUS
D 0
00s
3.47
03.
470
3.47
03.
470
3.47
03.
470
3.47
03.
470
3.47
03.
470
2.89
22.
892
2.89
22.
892
2.89
22.
892
2.89
22.
892
2.89
22.
892
2.89
22.
892
2.89
22.
892
2.89
2
Ope
ratin
g Co
sts*
USD
000
s69
41,
00%
694
701
708
715
722
729
737
744
752
759
767
774
782
790
798
806
814
822
830
838
847
855
864
872
881
* cu
rren
t ful
l FSA
EUR
900
k p.
a.O
pera
ting
Inco
me
/ EBI
TDA
USD
000
s2.
776
2.76
92.
762
2.75
52.
748
2.74
12.
734
2.72
62.
719
2.71
12.
125
2.11
82.
110
2.10
22.
094
2.08
62.
078
2.07
02.
062
2.05
32.
045
2.03
72.
028
2.01
92.
011
Dep
reci
atio
nUS
D 0
00s
2091
891
891
891
891
891
891
891
891
891
891
891
891
891
891
891
891
891
891
80
00
00
0
Inco
me
Befo
re T
axUS
D 0
00s
1.85
81.
851
1.84
41.
837
1.83
01.
823
1.81
51.
808
1.80
11.
793
1.20
71.
199
1.19
21.
184
1.17
61.
168
1.16
01.
152
1.14
42.
053
2.04
52.
037
2.02
82.
019
2.01
1
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
279
278
277
276
274
273
272
271
270
269
181
180
179
178
176
175
174
173
172
308
307
305
304
303
302
Net
Inco
me
USD
000
s1.
579
1.57
31.
567
1.56
11.
555
1.54
91.
543
1.53
71.
530
1.52
41.
026
1.01
91.
013
1.00
61.
000
993
986
979
972
1.74
51.
738
1.73
11.
724
1.71
61.
709
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
2.49
82.
492
2.48
62.
480
2.47
42.
467
2.46
12.
455
2.44
92.
442
1.94
41.
938
1.93
11.
924
1.91
81.
911
1.90
41.
897
1.89
01.
745
1.73
81.
731
1.72
41.
716
1.70
9D
ivid
ends
Tax
USD
000
s5%
125
125
124
124
124
123
123
123
122
122
9797
9796
9696
9595
9587
8787
8686
85N
et F
ree
Cash
Flo
wUS
D 0
00s
2.37
32.
367
2.36
12.
356
2.35
02.
344
2.33
82.
332
2.32
62.
320
1.84
71.
841
1.83
51.
828
1.82
21.
815
1.80
91.
802
1.79
61.
658
1.65
11.
645
1.63
81.
631
1.62
4
Initi
al In
vest
men
t (CA
PEX)
USD
000
s-1
8.36
4
Tota
l Cas
h Fl
ows
USD
000
s-1
8.36
42.
373
2.36
72.
361
2.35
62.
350
2.34
42.
338
2.33
22.
326
2.32
01.
847
1.84
11.
835
1.82
81.
822
1.81
51.
809
1.80
21.
796
1.65
81.
651
1.64
51.
638
1.63
11.
624
IRR
- pro
ject
retu
rn11
,00%
With
deb
t fin
anci
ng
Deb
t am
ount
USD
000
s9.
182
50%
Perio
d1
23
45
67
89
10In
tere
st ra
te6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
Tota
l num
ber o
f per
iods
(rep
aym
ents
)in
clud
ing
all f
ees
1010
1010
1010
1010
1010
Prin
cipa
l (@
the
begi
nnin
g of
repa
ymen
t per
iod)
9.18
29.
182
9.18
29.
182
9.18
29.
182
9.18
29.
182
9.18
29.
182
Tota
l Ope
ning
Deb
t Fac
ility
#1
9.18
28.
485
7.74
76.
964
6.13
55.
255
4.32
33.
335
2.28
71.
177
Tota
l Rep
aym
ent
(Int+
Prin
cipa
l)(1
.248
)(1
.248
)(1
.248
)(1
.248
)(1
.248
)(1
.248
)(1
.248
)(1
.248
)(1
.248
)(1
.248
)Pr
inci
pal P
aym
ent
(697
)(7
38)
(783
)(8
30)
(879
)(9
32)
(988
)(1
.047
)(1
.110
)(1
.177
)In
tere
st P
aym
ent
(551
)(5
09)
(465
)(4
18)
(368
)(3
15)
(259
)(2
00)
(137
)(7
1)Cl
osin
g D
ebt
8.48
57.
747
6.96
46.
135
5.25
54.
323
3.33
52.
287
1.17
70
Ope
ratin
g In
com
e / E
BITD
AUS
D 0
00s
2.77
62.
769
2.76
22.
755
2.74
82.
741
2.73
42.
726
2.71
92.
711
2.12
52.
118
2.11
02.
102
2.09
42.
086
2.07
82.
070
2.06
22.
053
2.04
52.
037
2.02
82.
019
2.01
1
Dep
reci
atio
n91
891
891
891
891
891
891
891
891
891
891
891
891
891
891
891
891
891
891
80
00
00
0In
tere
st P
aym
ents
551
509
465
418
368
315
259
200
137
710
00
00
00
00
00
00
00
Inco
me
Befo
re T
axUS
D 0
00s
1.30
71.
342
1.37
91.
419
1.46
21.
507
1.55
61.
608
1.66
31.
722
1.20
71.
199
1.19
21.
184
1.17
61.
168
1.16
01.
152
1.14
42.
053
2.04
52.
037
2.02
82.
019
2.01
1
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
196
201
207
213
219
226
233
241
249
258
181
180
179
178
176
175
174
173
172
308
307
305
304
303
302
Net
Inco
me
USD
000
s1.
111
1.14
11.
172
1.20
61.
243
1.28
11.
323
1.36
71.
414
1.46
41.
026
1.01
91.
013
1.00
61.
000
993
986
979
972
1.74
51.
738
1.73
11.
724
1.71
61.
709
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
2.02
92.
059
2.09
12.
124
2.16
12.
199
2.24
12.
285
2.33
22.
382
1.94
41.
938
1.93
11.
924
1.91
81.
911
1.90
41.
897
1.89
01.
745
1.73
81.
731
1.72
41.
716
1.70
9D
ivid
ends
Tax
USD
000
s5%
101
103
105
106
108
110
112
114
117
119
9797
9796
9696
9595
9587
8787
8686
85N
et F
ree
Cash
Flo
wUS
D 0
00s
1.92
81.
956
1.98
62.
018
2.05
32.
089
2.12
92.
171
2.21
52.
263
1.84
71.
841
1.83
51.
828
1.82
21.
815
1.80
91.
802
1.79
61.
658
1.65
11.
645
1.63
81.
631
1.62
4
Tota
l Cas
h Fl
ows
for E
quity
Ret
urn
Calc
sEn
terp
rise
Valu
e Pa
idUS
D 0
00s
-18.
364
Deb
t Rec
eive
dUS
D 0
00s
9.18
2Fr
ee C
ash
Flow
sUS
D 0
00s
01.
928
1.95
61.
986
2.01
82.
053
2.08
92.
129
2.17
12.
215
2.26
31.
847
1.84
11.
835
1.82
81.
822
1.81
51.
809
1.80
21.
796
1.65
81.
651
1.64
51.
638
1.63
11.
624
Net
Cas
h Fl
ows
USD
000
s-9
.182
1.92
81.
956
1.98
62.
018
2.05
32.
089
2.12
92.
171
2.21
52.
263
1.84
71.
841
1.83
51.
828
1.82
21.
815
1.80
91.
802
1.79
61.
658
1.65
11.
645
1.63
81.
631
1.62
4[L
ever
aged
Equ
ity] I
RR21
,57%
Indi
cativ
e Fi
nanc
ial C
over
Rat
io C
alcu
latio
nsCa
sh b
efor
e fin
anci
ng2.
580
2.56
82.
555
2.54
22.
529
2.51
52.
500
2.48
52.
469
2.45
31.
944
1.93
81.
931
1.92
41.
918
1.91
11.
904
1.89
71.
890
1.74
51.
738
1.73
11.
724
1.71
61.
709
Deb
t Ser
vice
1.24
81.
248
1.24
81.
248
1.24
81.
248
1.24
81.
248
1.24
81.
248
Deb
t Ser
vice
Cov
er R
atio
2,07
2,06
2,05
2,04
2,03
2,02
2,00
1,99
1,98
1,97
Min
DSC
R1,
97Av
g D
SCR
2,02
Proj
ect L
ife C
over
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3,13
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er R
atio
6,00
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W
Busin
ess
Plan
- Fi
nanc
ial M
odel
Park
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ub=1
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Life
-tim
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ject
12
34
56
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1112
1314
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1920
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2324
2526
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e of
Fee
d-in
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23
45
67
89
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Inst
alle
d Ca
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ty*
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000
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act
ual p
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541
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41.2
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41.2
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41.2
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41.2
6041
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41.2
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41.2
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41.2
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41.2
6041
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41.2
6041
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41.2
6041
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41.2
6041
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Feed
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h60
6060
6060
6060
6060
6060
Post
feed
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h50
5050
5050
5050
5050
5050
5050
5050
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venu
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D 0
00s
2.47
62.
476
2.47
62.
476
2.47
62.
476
2.47
62.
476
2.47
62.
476
2.06
32.
063
2.06
32.
063
2.06
32.
063
2.06
32.
063
2.06
32.
063
2.06
32.
063
2.06
32.
063
2.06
3
Ope
ratin
g Co
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000
s57
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00%
574
580
586
591
597
603
609
615
622
628
634
640
647
653
660
666
673
680
687
693
700
707
714
722
729
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me
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61.
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1.88
41.
878
1.87
21.
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1.86
01.
854
1.84
81.
429
1.42
31.
416
1.41
01.
403
1.39
71.
390
1.38
31.
376
1.37
01.
363
1.35
61.
349
1.34
11.
334
Dep
reci
atio
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D 0
00s
2074
074
074
074
074
074
074
074
074
074
074
074
074
074
074
074
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Inco
me
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re T
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00s
1.16
21.
156
1.15
01.
145
1.13
91.
133
1.12
71.
121
1.11
41.
108
689
683
677
670
664
657
650
644
637
1.37
01.
363
1.35
61.
349
1.34
11.
334
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
174
173
173
172
171
170
169
168
167
166
103
102
101
101
100
9998
9796
205
204
203
202
201
200
Net
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me
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000
s98
898
397
897
396
896
395
895
294
794
258
658
057
557
056
455
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354
754
11.
164
1.15
81.
152
1.14
61.
140
1.13
4
Free
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D 0
00s
1.72
71.
722
1.71
71.
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1.70
71.
702
1.69
71.
692
1.68
71.
682
1.32
61.
320
1.31
51.
309
1.30
41.
298
1.29
21.
287
1.28
11.
164
1.15
81.
152
1.14
61.
140
1.13
4D
ivid
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000
s5%
8686
8686
8585
8585
8484
6666
6665
6565
6564
6458
5858
5757
57N
et F
ree
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Flo
wUS
D 0
00s
1.64
11.
636
1.63
21.
627
1.62
21.
617
1.61
21.
607
1.60
31.
597
1.25
91.
254
1.24
91.
244
1.23
81.
233
1.22
81.
222
1.21
71.
106
1.10
01.
095
1.08
91.
083
1.07
7
Initi
al In
vest
men
t (CA
PEX)
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000
s-1
4.79
3
Tota
l Cas
h Fl
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4.79
31.
641
1.63
61.
632
1.62
71.
622
1.61
71.
612
1.60
71.
603
1.59
71.
259
1.25
41.
249
1.24
41.
238
1.23
31.
228
1.22
21.
217
1.10
61.
100
1.09
51.
089
1.08
31.
077
IRR
- pro
ject
retu
rn8,
74%
With
deb
t fin
anci
ng
Deb
t am
ount
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000
s7.
397
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Perio
d1
23
45
67
89
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tere
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te6,
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6,00
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00%
6,00
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00%
6,00
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6,00
%6,
00%
6,00
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Tota
l num
ber o
f per
iods
(rep
aym
ents
)in
clud
ing
all f
ees
1010
1010
1010
1010
1010
Prin
cipa
l (@
the
begi
nnin
g of
repa
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t per
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7.39
77.
397
7.39
77.
397
7.39
77.
397
7.39
77.
397
7.39
77.
397
Tota
l Ope
ning
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t Fac
ility
#1
7.39
76.
835
6.24
15.
610
4.94
24.
233
3.48
22.
686
1.84
294
8To
tal R
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men
t (In
t+Pr
inci
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(1.0
05)
(1.0
05)
(1.0
05)
(1.0
05)
(1.0
05)
(1.0
05)
(1.0
05)
(1.0
05)
(1.0
05)
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05)
Prin
cipa
l Pay
men
t(5
61)
(595
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31)
(668
)(7
08)
(751
)(7
96)
(844
)(8
94)
(948
)In
tere
st P
aym
ent
(444
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10)
(374
)(3
37)
(296
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54)
(209
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7)Cl
osin
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6.83
56.
241
5.61
04.
942
4.23
33.
482
2.68
61.
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948
(0)
Ope
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g In
com
e / E
BITD
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D 0
00s
1.90
21.
896
1.89
01.
884
1.87
81.
872
1.86
61.
860
1.85
41.
848
1.42
91.
423
1.41
61.
410
1.40
31.
397
1.39
01.
383
1.37
61.
370
1.36
31.
356
1.34
91.
341
1.33
4
Dep
reci
atio
n74
074
074
074
074
074
074
074
074
074
074
074
074
074
074
074
074
074
074
00
00
00
0In
tere
st P
aym
ents
444
410
374
337
296
254
209
161
111
570
00
00
00
00
00
00
00
Inco
me
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re T
axUS
D 0
00s
718
746
776
808
842
879
918
959
1.00
41.
051
689
683
677
670
664
657
650
644
637
1.37
01.
363
1.35
61.
349
1.34
11.
334
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
108
112
116
121
126
132
138
144
151
158
103
102
101
101
100
9998
9796
205
204
203
202
201
200
Net
Inco
me
USD
000
s61
063
466
068
771
674
778
081
585
389
458
658
057
557
056
455
855
354
754
11.
164
1.15
81.
152
1.14
61.
140
1.13
4
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
1.35
01.
374
1.39
91.
426
1.45
51.
487
1.52
01.
555
1.59
31.
633
1.32
61.
320
1.31
51.
309
1.30
41.
298
1.29
21.
287
1.28
11.
164
1.15
81.
152
1.14
61.
140
1.13
4D
ivid
ends
Tax
USD
000
s5%
6869
7071
7374
7678
8082
6666
6665
6565
6564
6458
5858
5757
57N
et F
ree
Cash
Flo
wUS
D 0
00s
1.28
31.
305
1.32
91.
355
1.38
31.
412
1.44
41.
477
1.51
31.
552
1.25
91.
254
1.24
91.
244
1.23
81.
233
1.22
81.
222
1.21
71.
106
1.10
01.
095
1.08
91.
083
1.07
7
Tota
l Cas
h Fl
ows
for E
quity
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sEn
terp
rise
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idUS
D 0
00s
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793
Deb
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D 0
00s
7.39
7Fr
ee C
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Flow
sUS
D 0
00s
01.
283
1.30
51.
329
1.35
51.
383
1.41
21.
444
1.47
71.
513
1.55
21.
259
1.25
41.
249
1.24
41.
238
1.23
31.
228
1.22
21.
217
1.10
61.
100
1.09
51.
089
1.08
31.
077
Net
Cas
h Fl
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USD
000
s-7
.397
1.28
31.
305
1.32
91.
355
1.38
31.
412
1.44
41.
477
1.51
31.
552
1.25
91.
254
1.24
91.
244
1.23
81.
233
1.22
81.
222
1.21
71.
106
1.10
01.
095
1.08
91.
083
1.07
7[L
ever
aged
Equ
ity] I
RR17
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Indi
cativ
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nanc
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over
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alcu
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sh b
efor
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794
1.78
41.
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1.76
31.
752
1.74
01.
729
1.71
61.
703
1.69
01.
326
1.32
01.
315
1.30
91.
304
1.29
81.
292
1.28
71.
281
1.16
41.
158
1.15
21.
146
1.14
01.
134
Deb
t Ser
vice
1.00
51.
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1.00
51.
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1.00
51.
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1.00
51.
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1.00
51.
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Deb
t Ser
vice
Cov
er R
atio
1,79
1,78
1,76
1,75
1,74
1,73
1,72
1,71
1,70
1,68
Min
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68Av
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1,74
Proj
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ife C
over
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2,66
Loan
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atio
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7XGE
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LE-10.5MW
Busin
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Plan
- Fi
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odel
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d Fa
rm S
H 7
wtg
's G
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Life
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e of
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34
56
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1314
1516
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1920
2122
2324
2526
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d-in
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paci
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10,5
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act
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40,3
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537
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37.0
6837
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37.0
6837
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37.0
6837
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37.0
6837
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37.0
6837
.068
37.0
6837
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37.0
6837
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37.0
6837
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37.0
6837
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37.0
6837
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37.0
6837
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37.0
6837
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Feed
-in-ta
riff
USD
/MW
h60
6060
6060
6060
6060
6060
Post
feed
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USD
/MW
h50
5050
5050
5050
5050
5050
5050
5050
50Re
venu
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D 0
00s
2.22
42.
224
2.22
42.
224
2.22
42.
224
2.22
42.
224
2.22
42.
224
1.85
31.
853
1.85
31.
853
1.85
31.
853
1.85
31.
853
1.85
31.
853
1.85
31.
853
1.85
31.
853
1.85
3
Ope
ratin
g Co
sts*
USD
000
s80
51,
00%
805
813
821
829
838
846
855
863
872
880
889
898
907
916
925
935
944
953
963
973
982
992
1.00
21.
012
1.02
2*
curr
ent f
ull F
SA E
UR 9
00k
p.a.
Ope
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com
e / E
BITD
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D 0
00s
1.41
91.
411
1.40
31.
395
1.38
61.
378
1.37
01.
361
1.35
21.
344
964
955
946
937
928
919
909
900
890
881
871
861
851
841
831
Dep
reci
atio
nUS
D 0
00s
2054
254
254
254
254
254
254
254
254
254
254
254
254
254
254
254
254
254
254
20
00
00
0
Inco
me
Befo
re T
axUS
D 0
00s
877
869
861
852
844
836
827
819
810
801
422
413
404
395
386
377
367
358
348
881
871
861
851
841
831
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
132
130
129
128
127
125
124
123
122
120
6362
6159
5856
5554
5213
213
112
912
812
612
5
Net
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me
USD
000
s74
573
973
272
571
871
070
369
668
968
135
935
134
333
632
832
031
230
429
674
974
073
272
471
570
7
Free
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h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
1.28
81.
281
1.27
41.
267
1.26
01.
253
1.24
51.
238
1.23
11.
223
901
893
886
878
870
862
854
846
838
749
740
732
724
715
707
Div
iden
ds T
axUS
D 0
00s
5%64
6464
6363
6362
6262
6145
4544
4444
4343
4242
3737
3736
3635
Net
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e Ca
sh F
low
USD
000
s1.
223
1.21
71.
210
1.20
31.
197
1.19
01.
183
1.17
61.
169
1.16
285
684
984
183
482
781
981
280
479
671
170
369
668
867
967
1
Initi
al In
vest
men
t (CA
PEX)
USD
000
s-1
0.84
4
Tota
l Cas
h Fl
ows
USD
000
s-1
0.84
41.
223
1.21
71.
210
1.20
31.
197
1.19
01.
183
1.17
61.
169
1.16
285
684
984
183
482
781
981
280
479
671
170
369
668
867
967
1IR
R - p
roje
ct re
turn
8,41
%
With
deb
t fin
anci
ng
Deb
t am
ount
USD
000
s5.
422
50%
Perio
d1
23
45
67
89
10In
tere
st ra
te6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
Tota
l num
ber o
f per
iods
(rep
aym
ents
)in
clud
ing
all f
ees
1010
1010
1010
1010
1010
Prin
cipa
l (@
the
begi
nnin
g of
repa
ymen
t per
iod)
5.42
25.
422
5.42
25.
422
5.42
25.
422
5.42
25.
422
5.42
25.
422
Tota
l Ope
ning
Deb
t Fac
ility
#1
5.42
25.
011
4.57
54.
112
3.62
23.
103
2.55
31.
969
1.35
169
5To
tal R
epay
men
t (In
t+Pr
inci
pal)
(737
)(7
37)
(737
)(7
37)
(737
)(7
37)
(737
)(7
37)
(737
)(7
37)
Prin
cipa
l Pay
men
t(4
11)
(436
)(4
62)
(490
)(5
19)
(550
)(5
84)
(619
)(6
56)
(695
)In
tere
st P
aym
ent
(325
)(3
01)
(274
)(2
47)
(217
)(1
86)
(153
)(1
18)
(81)
(42)
Clos
ing
Deb
t5.
011
4.57
54.
112
3.62
23.
103
2.55
31.
969
1.35
169
50
Ope
ratin
g In
com
e / E
BITD
AUS
D 0
00s
1.41
91.
411
1.40
31.
395
1.38
61.
378
1.37
01.
361
1.35
21.
344
964
955
946
937
928
919
909
900
890
881
871
861
851
841
831
Dep
reci
atio
n54
254
254
254
254
254
254
254
254
254
254
254
254
254
254
254
254
254
254
20
00
00
0In
tere
st P
aym
ents
325
301
274
247
217
186
153
118
8142
00
00
00
00
00
00
00
0
Inco
me
Befo
re T
axUS
D 0
00s
552
568
586
606
627
650
674
701
729
760
422
413
404
395
386
377
367
358
348
881
871
861
851
841
831
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
8385
8891
9497
101
105
109
114
6362
6159
5856
5554
5213
213
112
912
812
612
5
Net
Inco
me
USD
000
s46
948
349
851
553
355
257
359
662
064
635
935
134
333
632
832
031
230
429
674
974
073
272
471
570
7
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
1.01
11.
025
1.04
01.
057
1.07
51.
094
1.11
51.
138
1.16
21.
188
901
893
886
878
870
862
854
846
838
749
740
732
724
715
707
Div
iden
ds T
axUS
D 0
00s
5%51
5152
5354
5556
5758
5945
4544
4444
4343
4242
3737
3736
3635
Net
Fre
e Ca
sh F
low
USD
000
s96
097
498
81.
004
1.02
11.
040
1.06
01.
081
1.10
41.
129
856
849
841
834
827
819
812
804
796
711
703
696
688
679
671
Tota
l Cas
h Fl
ows
for E
quity
Ret
urn
Calc
sEn
terp
rise
Valu
e Pa
idUS
D 0
00s
-10.
844
Deb
t Rec
eive
dUS
D 0
00s
5.42
2Fr
ee C
ash
Flow
sUS
D 0
00s
096
097
498
81.
004
1.02
11.
040
1.06
01.
081
1.10
41.
129
856
849
841
834
827
819
812
804
796
711
703
696
688
679
671
Net
Cas
h Fl
ows
USD
000
s-5
.422
960
974
988
1.00
41.
021
1.04
01.
060
1.08
11.
104
1.12
985
684
984
183
482
781
981
280
479
671
170
369
668
867
967
1[L
ever
aged
Equ
ity] I
RR17
,70%
Indi
cativ
e Fi
nanc
ial C
over
Rat
io C
alcu
latio
nsCa
sh b
efor
e fin
anci
ng1.
336
1.32
61.
315
1.30
41.
292
1.28
11.
268
1.25
61.
243
1.23
090
189
388
687
887
086
285
484
683
874
974
073
272
471
570
7D
ebt S
ervi
ce73
773
773
773
773
773
773
773
773
773
7D
ebt S
ervi
ce C
over
Rat
io1,
811,
801,
781,
771,
751,
741,
721,
701,
691,
67M
in D
SCR
1,67
Avg
DSC
R1,
74Pr
ojec
t Life
Cov
er R
atio
6,00
%2,
58Lo
an L
ife C
over
Rat
io6,
00%
1,75
Financial Spreadsheets Qartli Expansion P90 Aug 2019 all ranges.xlsx
Item Unit GE Nordex Siemens Vestas Enercon GE2 X GE 5.3 Gamesa 7 X GE 1.5XL
Cypress 3 X N 149 3 X SWT 142 3 X V150-4.2 2 X E147-5 2nd Hand
CAPEX USD 000s 15.350 19.200 18.085 18.364 14.793 10.844
Equity USD 000s 7.675 9.600 9.043 9.182 9.182 5.422
Debt* USD 000s 7.675 9.600 9.043 9.182 7.397 5.422
Project IRR 9,54% 9,68% 9,14% 9,84% 7,63% 7,01%
[Levered] Equity IRR 19,13% 19,35% 18,46% 19,62% 16,04% 15,48%
Opex p.a.* USD 000s 592 721 685 694 574 805
Installed Capacity MW 10,6 13,5 12,3 12,6 10 10,5
No WTG 2 3 3 3 2 7
Capacity / WTG MW 5,3 4,5 4,1 4,2 5 1,5
Capacity Factor P 90 48,20% 47,40% 47,60% 49,10% 44,10% 37,80%
Annual Output MWh 44.757 56.055 51.288 54.195 38.632 34.768
Capex / MW USD 000s/MW 1.448 1.422 1.470 1.457 1.479 1.033
Opex / MWh USD 13,23 12,86 13,36 12,81 14,86 23,15
Min DSCR 1,78 1,80 1,73 1,82 1,55 1,51Avg DSCR 1,83 1,85 1,78 1,87 1,60 1,59PLCR 2,82 2,85 2,74 2,88 2,45 2,33LLCR 1,84 1,86 1,79 1,88 1,61 1,59
* Senior Debt - No-Recourse project finance - mortgage-style - 10 years (to match PPA tenor) - 50/50 - 6% USD p.a. Interest (all fees included)
Qartli Wind Farm Extension - 10 MW Range - Selected Financial Model FiguresP 90 Production Estimates
2XGE
5.3-1
0.6MW
Busin
ess
Plan
- Fi
nanc
ial M
odel
Park
Gor
i II -
2 X
GE1
58-5
.3 7
00 H
ub=1
20.9
mLi
fe-ti
me
of P
roje
ct1
23
45
67
89
1011
1213
1415
1617
1819
2021
2223
2425
26Li
fe-ti
me
of F
eed-
in-ta
riff
12
34
56
78
910
Inst
alle
d Ca
paci
ty*
MW
10,6
2 X
GE1
58-5
.3 7
00 H
ub=1
20.9
mCA
PEX
USD
000
s15
.350
NET
act
ual p
rodu
ctio
nM
Wh
48,2
0%P9
044
.757
44.7
5744
.757
44.7
5744
.757
44.7
5744
.757
44.7
5744
.757
44.7
5744
.757
44.7
5744
.757
44.7
5744
.757
44.7
5744
.757
44.7
5744
.757
44.7
5744
.757
44.7
5744
.757
44.7
5744
.757
Feed
-in-ta
riff
USD
/MW
h60
6060
6060
6060
6060
6060
Post
feed
-in-ta
riff
USD
/MW
h50
5050
5050
5050
5050
5050
5050
5050
50Re
venu
esUS
D 0
00s
2.68
52.
685
2.68
52.
685
2.68
52.
685
2.68
52.
685
2.68
52.
685
2.23
82.
238
2.23
82.
238
2.23
82.
238
2.23
82.
238
2.23
82.
238
2.23
82.
238
2.23
82.
238
2.23
8
Ope
ratin
g Co
sts*
USD
000
s59
21,
00%
592
598
604
610
616
622
628
635
641
647
654
660
667
674
680
687
694
701
708
715
722
730
737
744
752
* cu
rren
t ful
l FSA
EUR
900
k p.
a.O
pera
ting
Inco
me
/ EBI
TDA
USD
000
s2.
093
2.08
72.
081
2.07
52.
069
2.06
32.
057
2.05
12.
044
2.03
81.
584
1.57
71.
571
1.56
41.
557
1.55
11.
544
1.53
71.
530
1.52
31.
515
1.50
81.
501
1.49
41.
486
Dep
reci
atio
nUS
D 0
00s
2076
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
80
00
00
0
Inco
me
Befo
re T
axUS
D 0
00s
1.32
61.
320
1.31
41.
308
1.30
21.
296
1.28
91.
283
1.27
71.
270
816
810
803
797
790
783
776
769
762
1.52
31.
515
1.50
81.
501
1.49
41.
486
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
199
198
197
196
195
194
193
192
192
191
122
121
120
119
118
117
116
115
114
228
227
226
225
224
223
Net
Inco
me
USD
000
s1.
127
1.12
21.
117
1.11
21.
107
1.10
11.
096
1.09
11.
085
1.08
069
468
868
367
767
166
666
065
464
81.
294
1.28
81.
282
1.27
61.
270
1.26
3
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
1.89
51.
889
1.88
41.
879
1.87
41.
869
1.86
41.
858
1.85
31.
847
1.46
11.
456
1.45
01.
445
1.43
91.
433
1.42
71.
421
1.41
51.
294
1.28
81.
282
1.27
61.
270
1.26
3D
ivid
ends
Tax
USD
000
s5%
9594
9494
9493
9393
9392
7373
7372
7272
7171
7165
6464
6463
63N
et F
ree
Cash
Flo
wUS
D 0
00s
1.80
01.
795
1.79
01.
785
1.78
01.
775
1.77
01.
765
1.76
01.
755
1.38
81.
383
1.37
81.
372
1.36
71.
361
1.35
61.
350
1.34
51.
230
1.22
41.
218
1.21
21.
206
1.20
0
Initi
al In
vest
men
t (CA
PEX)
USD
000
s-1
5.35
0
Tota
l Cas
h Fl
ows
USD
000
s-1
5.35
01.
800
1.79
51.
790
1.78
51.
780
1.77
51.
770
1.76
51.
760
1.75
51.
388
1.38
31.
378
1.37
21.
367
1.36
11.
356
1.35
01.
345
1.23
01.
224
1.21
81.
212
1.20
61.
200
IRR
- pro
ject
retu
rn9,
54%
With
deb
t fin
anci
ng
Deb
t am
ount
USD
000
s7.
675
50%
Perio
d1
23
45
67
89
10In
tere
st ra
te6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
Tota
l num
ber o
f per
iods
(rep
aym
ents
)in
clud
ing
all f
ees
1010
1010
1010
1010
1010
Prin
cipa
l (@
the
begi
nnin
g of
repa
ymen
t per
iod)
7675
7675
7675
7675
7675
7675
7675
7675
7675
7675
Tota
l Ope
ning
Deb
t Fac
ility
#1
7675
7.09
36.
475
5.82
15.
128
4.39
33.
613
2.78
71.
912
984
Tota
l Rep
aym
ent
(Int+
Prin
cipa
l)(1
.043
)(1
.043
)(1
.043
)(1
.043
)(1
.043
)(1
.043
)(1
.043
)(1
.043
)(1
.043
)(1
.043
)Pr
inci
pal P
aym
ent
(582
)(6
17)
(654
)(6
94)
(735
)(7
79)
(826
)(8
76)
(928
)(9
84)
Inte
rest
Pay
men
t(4
61)
(426
)(3
89)
(349
)(3
08)
(264
)(2
17)
(167
)(1
15)
(59)
Clos
ing
Deb
t7.
093
6.47
55.
821
5.12
84.
393
3.61
32.
787
1.91
298
4(0
)
Ope
ratin
g In
com
e / E
BITD
AUS
D 0
00s
2.09
32.
087
2.08
12.
075
2.06
92.
063
2.05
72.
051
2.04
42.
038
1.58
41.
577
1.57
11.
564
1.55
71.
551
1.54
41.
537
1.53
01.
523
1.51
51.
508
1.50
11.
494
1.48
6
Dep
reci
atio
n76
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
876
80
00
00
0In
tere
st P
aym
ents
461
426
389
349
308
264
217
167
115
590
00
00
00
00
00
00
00
Inco
me
Befo
re T
axUS
D 0
00s
865
894
925
959
994
1.03
21.
073
1.11
61.
162
1.21
181
681
080
379
779
078
377
676
976
21.
523
1.51
51.
508
1.50
11.
494
1.48
6
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
130
134
139
144
149
155
161
167
174
182
122
121
120
119
118
117
116
115
114
228
227
226
225
224
223
Net
Inco
me
USD
000
s73
676
078
781
584
587
791
294
998
81.
030
694
688
683
677
671
666
660
654
648
1.29
41.
288
1.28
21.
276
1.27
01.
263
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
1.50
31.
528
1.55
41.
582
1.61
31.
645
1.67
91.
716
1.75
51.
797
1.46
11.
456
1.45
01.
445
1.43
91.
433
1.42
71.
421
1.41
51.
294
1.28
81.
282
1.27
61.
270
1.26
3D
ivid
ends
Tax
USD
000
s5%
7576
7879
8182
8486
8890
7373
7372
7272
7171
7165
6464
6463
63N
et F
ree
Cash
Flo
wUS
D 0
00s
1.42
81.
451
1.47
61.
503
1.53
21.
563
1.59
51.
630
1.66
81.
707
1.38
81.
383
1.37
81.
372
1.36
71.
361
1.35
61.
350
1.34
51.
230
1.22
41.
218
1.21
21.
206
1.20
0
Tota
l Cas
h Fl
ows
for E
quity
Ret
urn
Calc
sEn
terp
rise
Valu
e Pa
idUS
D 0
00s
-15.
350
Deb
t Rec
eive
dUS
D 0
00s
7.67
5Fr
ee C
ash
Flow
sUS
D 0
00s
01.
428
1.45
11.
476
1.50
31.
532
1.56
31.
595
1.63
01.
668
1.70
71.
388
1.38
31.
378
1.37
21.
367
1.36
11.
356
1.35
01.
345
1.23
01.
224
1.21
81.
212
1.20
61.
200
Net
Cas
h Fl
ows
USD
000
s-7
.675
1.42
81.
451
1.47
61.
503
1.53
21.
563
1.59
51.
630
1.66
81.
707
1.38
81.
383
1.37
81.
372
1.36
71.
361
1.35
61.
350
1.34
51.
230
1.22
41.
218
1.21
21.
206
1.20
0[L
ever
aged
Equ
ity] I
RR19
,13%
Indi
cativ
e Fi
nanc
ial C
over
Rat
io C
alcu
latio
nsCa
sh b
efor
e fin
anci
ng1.
964
1.95
31.
943
1.93
21.
920
1.90
81.
896
1.88
31.
870
1.85
61.
461
1.45
61.
450
1.44
51.
439
1.43
31.
427
1.42
11.
415
1.29
41.
288
1.28
21.
276
1.27
01.
263
Deb
t Ser
vice
1.04
31.
043
1.04
31.
043
1.04
31.
043
1.04
31.
043
1.04
31.
043
Deb
t Ser
vice
Cov
er R
atio
1,88
1,87
1,86
1,85
1,84
1,83
1,82
1,81
1,79
1,78
Min
DSC
R1,
78Av
g D
SCR
1,83
Proj
ect L
ife C
over
Rat
io6,
00%
2,82
Loan
Life
Cov
er R
atio
6,00
%1,
84
3XN149-4.5-9
MW
Busin
ess
Plan
- Fi
nanc
ial M
odel
Park
Gor
i II 3
wtg
's N
149-
4.5
Hub
=105
m 1
7.07
.201
9Li
fe-ti
me
of P
roje
ct1
23
45
67
89
1011
1213
1415
1617
1819
2021
2223
2425
26Li
fe-ti
me
of F
eed-
in-ta
riff
12
34
56
78
910
Inst
alle
d Ca
paci
ty*
MW
13,5
2wtg
's N
149-
4.5
Hub
=105
m 1
7.07
.201
9CA
PEX
USD
000
s19
.200
NET
act
ual p
rodu
ctio
nM
Wh
47,4
0%P9
056
.055
56.0
5556
.055
56.0
5556
.055
56.0
5556
.055
56.0
5556
.055
56.0
5556
.055
56.0
5556
.055
56.0
5556
.055
56.0
5556
.055
56.0
5556
.055
56.0
5556
.055
56.0
5556
.055
56.0
5556
.055
Feed
-in-ta
riff
USD
/MW
h60
6060
6060
6060
6060
6060
Post
feed
-in-ta
riff
USD
/MW
h50
5050
5050
5050
5050
5050
5050
5050
50Re
venu
esUS
D 0
00s
3.36
33.
363
3.36
33.
363
3.36
33.
363
3.36
33.
363
3.36
33.
363
2.80
32.
803
2.80
32.
803
2.80
32.
803
2.80
32.
803
2.80
32.
803
2.80
32.
803
2.80
32.
803
2.80
3
Ope
ratin
g Co
sts*
USD
000
s72
11,
00%
721
728
735
743
750
758
765
773
781
789
796
804
812
821
829
837
845
854
862
871
880
889
897
906
915
* cu
rren
t ful
l FSA
EUR
900
k p.
a.O
pera
ting
Inco
me
/ EBI
TDA
USD
000
s2.
642
2.63
52.
628
2.62
02.
613
2.60
62.
598
2.59
02.
583
2.57
52.
006
1.99
81.
990
1.98
21.
974
1.96
61.
957
1.94
91.
940
1.93
21.
923
1.91
41.
905
1.89
61.
887
Dep
reci
atio
nUS
D 0
00s
2096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
00
00
00
0
Inco
me
Befo
re T
axUS
D 0
00s
1.68
21.
675
1.66
81.
660
1.65
31.
646
1.63
81.
630
1.62
31.
615
1.04
61.
038
1.03
01.
022
1.01
41.
006
997
989
980
1.93
21.
923
1.91
41.
905
1.89
61.
887
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
252
251
250
249
248
247
246
245
243
242
157
156
155
153
152
151
150
148
147
290
288
287
286
284
283
Net
Inco
me
USD
000
s1.
430
1.42
41.
418
1.41
11.
405
1.39
91.
392
1.38
61.
379
1.37
388
988
387
686
986
285
584
884
183
31.
642
1.63
51.
627
1.62
01.
612
1.60
4
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
2.39
02.
384
2.37
82.
371
2.36
52.
359
2.35
22.
346
2.33
92.
333
1.84
91.
843
1.83
61.
829
1.82
21.
815
1.80
81.
801
1.79
31.
642
1.63
51.
627
1.62
01.
612
1.60
4D
ivid
ends
Tax
USD
000
s5%
119
119
119
119
118
118
118
117
117
117
9292
9291
9191
9090
9082
8281
8181
80N
et F
ree
Cash
Flo
wUS
D 0
00s
2.27
02.
265
2.25
92.
253
2.24
72.
241
2.23
52.
228
2.22
22.
216
1.75
71.
750
1.74
41.
737
1.73
11.
724
1.71
71.
711
1.70
41.
560
1.55
31.
546
1.53
91.
531
1.52
4
Initi
al In
vest
men
t (CA
PEX)
USD
000
s-1
9.20
0
Tota
l Cas
h Fl
ows
USD
000
s-1
9.20
02.
270
2.26
52.
259
2.25
32.
247
2.24
12.
235
2.22
82.
222
2.21
61.
757
1.75
01.
744
1.73
71.
731
1.72
41.
717
1.71
11.
704
1.56
01.
553
1.54
61.
539
1.53
11.
524
IRR
- pro
ject
retu
rn9,
68%
With
deb
t fin
anci
ng
Deb
t am
ount
USD
000
s9.
600
50%
Perio
d1
23
45
67
89
10In
tere
st ra
te6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
Tota
l num
ber o
f per
iods
(rep
aym
ents
)in
clud
ing
all f
ees
1010
1010
1010
1010
1010
Prin
cipa
l (@
the
begi
nnin
g of
repa
ymen
t per
iod)
9.60
09.
600
9.60
09.
600
9.60
09.
600
9.60
09.
600
9.60
09.
600
Tota
l Ope
ning
Deb
t Fac
ility
#1
9.60
08.
872
8.10
07.
281
6.41
45.
494
4.52
03.
486
2.39
11.
231
Tota
l Rep
aym
ent
(Int+
Prin
cipa
l)(1
.304
)(1
.304
)(1
.304
)(1
.304
)(1
.304
)(1
.304
)(1
.304
)(1
.304
)(1
.304
)(1
.304
)Pr
inci
pal P
aym
ent
(728
)(7
72)
(818
)(8
67)
(920
)(9
75)
(1.0
33)
(1.0
95)
(1.1
61)
(1.2
31)
Inte
rest
Pay
men
t(5
76)
(532
)(4
86)
(437
)(3
85)
(330
)(2
71)
(209
)(1
43)
(74)
Clos
ing
Deb
t8.
872
8.10
07.
281
6.41
45.
494
4.52
03.
486
2.39
11.
231
(0)
Ope
ratin
g In
com
e / E
BITD
AUS
D 0
00s
2.64
22.
635
2.62
82.
620
2.61
32.
606
2.59
82.
590
2.58
32.
575
2.00
61.
998
1.99
01.
982
1.97
41.
966
1.95
71.
949
1.94
01.
932
1.92
31.
914
1.90
51.
896
1.88
7
Dep
reci
atio
n96
096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
096
00
00
00
0In
tere
st P
aym
ents
576
532
486
437
385
330
271
209
143
740
00
00
00
00
00
00
00
Inco
me
Befo
re T
axUS
D 0
00s
1.10
61.
143
1.18
21.
224
1.26
81.
316
1.36
71.
421
1.47
91.
541
1.04
61.
038
1.03
01.
022
1.01
41.
006
997
989
980
1.93
21.
923
1.91
41.
905
1.89
61.
887
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
166
171
177
184
190
197
205
213
222
231
157
156
155
153
152
151
150
148
147
290
288
287
286
284
283
Net
Inco
me
USD
000
s94
097
11.
005
1.04
01.
078
1.11
81.
162
1.20
81.
257
1.31
088
988
387
686
986
285
584
884
183
31.
642
1.63
51.
627
1.62
01.
612
1.60
4
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
1.90
01.
931
1.96
52.
000
2.03
82.
078
2.12
22.
168
2.21
72.
270
1.84
91.
843
1.83
61.
829
1.82
21.
815
1.80
81.
801
1.79
31.
642
1.63
51.
627
1.62
01.
612
1.60
4D
ivid
ends
Tax
USD
000
s5%
9597
9810
010
210
410
610
811
111
392
9292
9191
9190
9090
8282
8181
8180
Net
Fre
e Ca
sh F
low
USD
000
s1.
805
1.83
51.
866
1.90
01.
936
1.97
52.
016
2.06
02.
106
2.15
61.
757
1.75
01.
744
1.73
71.
731
1.72
41.
717
1.71
11.
704
1.56
01.
553
1.54
61.
539
1.53
11.
524
Tota
l Cas
h Fl
ows
for E
quity
Ret
urn
Calc
sEn
terp
rise
Valu
e Pa
idUS
D 0
00s
-19.
200
Deb
t Rec
eive
dUS
D 0
00s
9.60
0Fr
ee C
ash
Flow
sUS
D 0
00s
01.
805
1.83
51.
866
1.90
01.
936
1.97
52.
016
2.06
02.
106
2.15
61.
757
1.75
01.
744
1.73
71.
731
1.72
41.
717
1.71
11.
704
1.56
01.
553
1.54
61.
539
1.53
11.
524
Net
Cas
h Fl
ows
USD
000
s-9
.600
1.80
51.
835
1.86
61.
900
1.93
61.
975
2.01
62.
060
2.10
62.
156
1.75
71.
750
1.74
41.
737
1.73
11.
724
1.71
71.
711
1.70
41.
560
1.55
31.
546
1.53
91.
531
1.52
4[L
ever
aged
Equ
ity] I
RR19
,35%
Indi
cativ
e Fi
nanc
ial C
over
Rat
io C
alcu
latio
nsCa
sh b
efor
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anci
ng2.
476
2.46
42.
451
2.43
72.
423
2.40
82.
393
2.37
72.
361
2.34
41.
849
1.84
31.
836
1.82
91.
822
1.81
51.
808
1.80
11.
793
1.64
21.
635
1.62
71.
620
1.61
21.
604
Deb
t Ser
vice
1.30
41.
304
1.30
41.
304
1.30
41.
304
1.30
41.
304
1.30
41.
304
Deb
t Ser
vice
Cov
er R
atio
1,90
1,89
1,88
1,87
1,86
1,85
1,83
1,82
1,81
1,80
Min
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g D
SCR
1,85
Proj
ect L
ife C
over
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2,85
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er R
atio
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%1,
86
3XSW
T142-4.1-8
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Busin
ess
Plan
- Fi
nanc
ial M
odel
Park
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i II 3
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's S
WT-
DD
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2.07
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roje
ct1
23
45
67
89
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1213
1415
1617
1819
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2425
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me
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eed-
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ty*
MW
12,3
2wtg
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DD
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9CA
PEX
USD
000
s18
.085
NET
act
ual p
rodu
ctio
nM
Wh
47,6
0%P9
051
.288
51.2
8851
.288
51.2
8851
.288
51.2
8851
.288
51.2
8851
.288
51.2
8851
.288
51.2
8851
.288
51.2
8851
.288
51.2
8851
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51.2
8851
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51.2
8851
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51.2
8851
.288
51.2
8851
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Feed
-in-ta
riff
USD
/MW
h60
6060
6060
6060
6060
6060
Post
feed
-in-ta
riff
USD
/MW
h50
5050
5050
5050
5050
5050
5050
5050
50Re
venu
esUS
D 0
00s
3.07
73.
077
3.07
73.
077
3.07
73.
077
3.07
73.
077
3.07
73.
077
2.56
42.
564
2.56
42.
564
2.56
42.
564
2.56
42.
564
2.56
42.
564
2.56
42.
564
2.56
42.
564
2.56
4
Ope
ratin
g Co
sts*
USD
000
s68
51,
00%
685
692
699
706
713
720
727
734
742
749
757
764
772
780
787
795
803
811
819
828
836
844
853
861
870
* cu
rren
t ful
l FSA
EUR
900
k p.
a.O
pera
ting
Inco
me
/ EBI
TDA
USD
000
s2.
392
2.38
52.
379
2.37
22.
364
2.35
72.
350
2.34
32.
336
2.32
81.
808
1.80
01.
793
1.78
51.
777
1.76
91.
761
1.75
31.
745
1.73
71.
729
1.72
01.
712
1.70
31.
695
Dep
reci
atio
nUS
D 0
00s
2090
490
490
490
490
490
490
490
490
490
490
490
490
490
490
490
490
490
490
40
00
00
0
Inco
me
Befo
re T
axUS
D 0
00s
1.48
81.
481
1.47
41.
467
1.46
01.
453
1.44
61.
439
1.43
11.
424
903
896
888
881
873
865
857
849
841
1.73
71.
729
1.72
01.
712
1.70
31.
695
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
223
222
221
220
219
218
217
216
215
214
136
134
133
132
131
130
129
127
126
261
259
258
257
255
254
Net
Inco
me
USD
000
s1.
265
1.25
91.
253
1.24
71.
241
1.23
51.
229
1.22
31.
217
1.21
076
876
275
574
874
273
572
872
271
51.
476
1.46
91.
462
1.45
51.
448
1.44
0
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
2.16
92.
163
2.15
72.
151
2.14
52.
139
2.13
32.
127
2.12
12.
115
1.67
21.
666
1.65
91.
653
1.64
61.
639
1.63
31.
626
1.61
91.
476
1.46
91.
462
1.45
51.
448
1.44
0D
ivid
ends
Tax
USD
000
s5%
108
108
108
108
107
107
107
106
106
106
8483
8383
8282
8281
8174
7373
7372
72N
et F
ree
Cash
Flo
wUS
D 0
00s
2.06
12.
055
2.05
02.
044
2.03
82.
032
2.02
72.
021
2.01
52.
009
1.58
91.
582
1.57
61.
570
1.56
41.
557
1.55
11.
545
1.53
81.
403
1.39
61.
389
1.38
21.
375
1.36
8
Initi
al In
vest
men
t (CA
PEX)
USD
000
s-1
8.08
5
Tota
l Cas
h Fl
ows
USD
000
s-1
8.08
52.
061
2.05
52.
050
2.04
42.
038
2.03
22.
027
2.02
12.
015
2.00
91.
589
1.58
21.
576
1.57
01.
564
1.55
71.
551
1.54
51.
538
1.40
31.
396
1.38
91.
382
1.37
51.
368
IRR
- pro
ject
retu
rn9,
14%
With
deb
t fin
anci
ng
Deb
t am
ount
USD
000
s9.
043
50%
Perio
d1
23
45
67
89
10In
tere
st ra
te6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
Tota
l num
ber o
f per
iods
(rep
aym
ents
)in
clud
ing
all f
ees
1010
1010
1010
1010
1010
Prin
cipa
l (@
the
begi
nnin
g of
repa
ymen
t per
iod)
9.04
39.
043
9.04
39.
043
9.04
39.
043
9.04
39.
043
9.04
39.
043
Tota
l Ope
ning
Deb
t Fac
ility
#1
9.04
38.
356
7.62
96.
858
6.04
15.
175
4.25
73.
284
2.25
21.
159
Tota
l Rep
aym
ent
(Int+
Prin
cipa
l)(1
.229
)(1
.229
)(1
.229
)(1
.229
)(1
.229
)(1
.229
)(1
.229
)(1
.229
)(1
.229
)(1
.229
)Pr
inci
pal P
aym
ent
(686
)(7
27)
(771
)(8
17)
(866
)(9
18)
(973
)(1
.032
)(1
.093
)(1
.159
)In
tere
st P
aym
ent
(543
)(5
01)
(458
)(4
12)
(362
)(3
11)
(255
)(1
97)
(135
)(7
0)Cl
osin
g D
ebt
8.35
67.
629
6.85
86.
041
5.17
54.
257
3.28
42.
252
1.15
9(0
)
Ope
ratin
g In
com
e / E
BITD
AUS
D 0
00s
2.39
22.
385
2.37
92.
372
2.36
42.
357
2.35
02.
343
2.33
62.
328
1.80
81.
800
1.79
31.
785
1.77
71.
769
1.76
11.
753
1.74
51.
737
1.72
91.
720
1.71
21.
703
1.69
5
Dep
reci
atio
n90
490
490
490
490
490
490
490
490
490
490
490
490
490
490
490
490
490
490
40
00
00
0In
tere
st P
aym
ents
543
501
458
412
362
311
255
197
135
700
00
00
00
00
00
00
00
Inco
me
Befo
re T
axUS
D 0
00s
945
980
1.01
71.
056
1.09
81.
143
1.19
01.
242
1.29
61.
354
903
896
888
881
873
865
857
849
841
1.73
71.
729
1.72
01.
712
1.70
31.
695
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
142
147
152
158
165
171
179
186
194
203
136
134
133
132
131
130
129
127
126
261
259
258
257
255
254
Net
Inco
me
USD
000
s80
483
386
489
793
397
11.
012
1.05
51.
102
1.15
176
876
275
574
874
273
572
872
271
51.
476
1.46
91.
462
1.45
51.
448
1.44
0
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
1.70
81.
737
1.76
81.
802
1.83
71.
875
1.91
61.
960
2.00
62.
055
1.67
21.
666
1.65
91.
653
1.64
61.
639
1.63
31.
626
1.61
91.
476
1.46
91.
462
1.45
51.
448
1.44
0D
ivid
ends
Tax
USD
000
s5%
8587
8890
9294
9698
100
103
8483
8383
8282
8281
8174
7373
7372
72N
et F
ree
Cash
Flo
wUS
D 0
00s
1.62
31.
650
1.68
01.
712
1.74
51.
782
1.82
01.
862
1.90
61.
953
1.58
91.
582
1.57
61.
570
1.56
41.
557
1.55
11.
545
1.53
81.
403
1.39
61.
389
1.38
21.
375
1.36
8
Tota
l Cas
h Fl
ows
for E
quity
Ret
urn
Calc
sEn
terp
rise
Valu
e Pa
idUS
D 0
00s
-18.
085
Deb
t Rec
eive
dUS
D 0
00s
9.04
3Fr
ee C
ash
Flow
sUS
D 0
00s
01.
623
1.65
01.
680
1.71
21.
745
1.78
21.
820
1.86
21.
906
1.95
31.
589
1.58
21.
576
1.57
01.
564
1.55
71.
551
1.54
51.
538
1.40
31.
396
1.38
91.
382
1.37
51.
368
Net
Cas
h Fl
ows
USD
000
s-9
.043
1.62
31.
650
1.68
01.
712
1.74
51.
782
1.82
01.
862
1.90
61.
953
1.58
91.
582
1.57
61.
570
1.56
41.
557
1.55
11.
545
1.53
81.
403
1.39
61.
389
1.38
21.
375
1.36
8[L
ever
aged
Equ
ity] I
RR18
,46%
Indi
cativ
e Fi
nanc
ial C
over
Rat
io C
alcu
latio
nsCa
sh b
efor
e fin
anci
ng2.
250
2.23
82.
226
2.21
32.
200
2.18
62.
172
2.15
72.
141
2.12
51.
672
1.66
61.
659
1.65
31.
646
1.63
91.
633
1.62
61.
619
1.47
61.
469
1.46
21.
455
1.44
81.
440
Deb
t Ser
vice
1.22
91.
229
1.22
91.
229
1.22
91.
229
1.22
91.
229
1.22
91.
229
Deb
t Ser
vice
Cov
er R
atio
1,83
1,82
1,81
1,80
1,79
1,78
1,77
1,76
1,74
1,73
Min
DSC
R1,
73Av
g D
SCR
1,78
Proj
ect L
ife C
over
Rat
io6,
00%
2,74
Loan
Life
Cov
er R
atio
6,00
%1,
79
3XV1
50-4.2-8.4MW
Busin
ess
Plan
- Fi
nanc
ial M
odel
Park
Gor
i II 3
wtg
's V
150-
4.2
Hub
=105
m 1
7.07
.201
9Li
fe-ti
me
of P
roje
ct1
23
45
67
89
1011
1213
1415
1617
1819
2021
2223
2425
26Li
fe-ti
me
of F
eed-
in-ta
riff
12
34
56
78
910
Inst
alle
d Ca
paci
ty*
MW
12,6
2wtg
's V
150-
4.2
Hub
=105
m 1
7.07
.201
9CA
PEX
USD
000
s18
.364
NET
act
ual p
rodu
ctio
nM
Wh
49,1
0%P9
054
.195
54.1
9554
.195
54.1
9554
.195
54.1
9554
.195
54.1
9554
.195
54.1
9554
.195
54.1
9554
.195
54.1
9554
.195
54.1
9554
.195
54.1
9554
.195
54.1
9554
.195
54.1
9554
.195
54.1
9554
.195
Feed
-in-ta
riff
USD
/MW
h60
6060
6060
6060
6060
6060
Post
feed
-in-ta
riff
USD
/MW
h50
5050
5050
5050
5050
5050
5050
5050
50Re
venu
esUS
D 0
00s
3.25
23.
252
3.25
23.
252
3.25
23.
252
3.25
23.
252
3.25
23.
252
2.71
02.
710
2.71
02.
710
2.71
02.
710
2.71
02.
710
2.71
02.
710
2.71
02.
710
2.71
02.
710
2.71
0
Ope
ratin
g Co
sts*
USD
000
s69
41,
00%
694
701
708
715
722
729
737
744
752
759
767
774
782
790
798
806
814
822
830
838
847
855
864
872
881
* cu
rren
t ful
l FSA
EUR
900
k p.
a.O
pera
ting
Inco
me
/ EBI
TDA
USD
000
s2.
558
2.55
12.
544
2.53
72.
529
2.52
22.
515
2.50
82.
500
2.49
31.
943
1.93
51.
928
1.92
01.
912
1.90
41.
896
1.88
81.
880
1.87
11.
863
1.85
41.
846
1.83
71.
829
Dep
reci
atio
nUS
D 0
00s
2091
891
891
891
891
891
891
891
891
891
891
891
891
891
891
891
891
891
891
80
00
00
0
Inco
me
Befo
re T
axUS
D 0
00s
1.63
91.
633
1.62
61.
618
1.61
11.
604
1.59
71.
589
1.58
21.
574
1.02
51.
017
1.01
01.
002
994
986
978
970
961
1.87
11.
863
1.85
41.
846
1.83
71.
829
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
246
245
244
243
242
241
240
238
237
236
154
153
151
150
149
148
147
145
144
281
279
278
277
276
274
Net
Inco
me
USD
000
s1.
394
1.38
81.
382
1.37
61.
370
1.36
31.
357
1.35
11.
345
1.33
887
186
585
885
184
583
883
182
481
71.
591
1.58
31.
576
1.56
91.
562
1.55
4
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
2.31
22.
306
2.30
02.
294
2.28
82.
282
2.27
52.
269
2.26
32.
256
1.78
91.
783
1.77
61.
770
1.76
31.
756
1.74
91.
742
1.73
51.
591
1.58
31.
576
1.56
91.
562
1.55
4D
ivid
ends
Tax
USD
000
s5%
116
115
115
115
114
114
114
113
113
113
8989
8988
8888
8787
8780
7979
7878
78N
et F
ree
Cash
Flo
wUS
D 0
00s
2.19
62.
191
2.18
52.
179
2.17
32.
168
2.16
22.
156
2.15
02.
144
1.70
01.
694
1.68
71.
681
1.67
51.
668
1.66
21.
655
1.64
91.
511
1.50
41.
497
1.49
11.
484
1.47
7
Initi
al In
vest
men
t (CA
PEX)
USD
000
s-1
8.36
4
Tota
l Cas
h Fl
ows
USD
000
s-1
8.36
42.
196
2.19
12.
185
2.17
92.
173
2.16
82.
162
2.15
62.
150
2.14
41.
700
1.69
41.
687
1.68
11.
675
1.66
81.
662
1.65
51.
649
1.51
11.
504
1.49
71.
491
1.48
41.
477
IRR
- pro
ject
retu
rn9,
84%
With
deb
t fin
anci
ng
Deb
t am
ount
USD
000
s9.
182
50%
Perio
d1
23
45
67
89
10In
tere
st ra
te6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
6,00
%6,
00%
Tota
l num
ber o
f per
iods
(rep
aym
ents
)in
clud
ing
all f
ees
1010
1010
1010
1010
1010
Prin
cipa
l (@
the
begi
nnin
g of
repa
ymen
t per
iod)
9.18
29.
182
9.18
29.
182
9.18
29.
182
9.18
29.
182
9.18
29.
182
Tota
l Ope
ning
Deb
t Fac
ility
#1
9.18
28.
485
7.74
76.
964
6.13
55.
255
4.32
33.
335
2.28
71.
177
Tota
l Rep
aym
ent
(Int+
Prin
cipa
l)(1
.248
)(1
.248
)(1
.248
)(1
.248
)(1
.248
)(1
.248
)(1
.248
)(1
.248
)(1
.248
)(1
.248
)Pr
inci
pal P
aym
ent
(697
)(7
38)
(783
)(8
30)
(879
)(9
32)
(988
)(1
.047
)(1
.110
)(1
.177
)In
tere
st P
aym
ent
(551
)(5
09)
(465
)(4
18)
(368
)(3
15)
(259
)(2
00)
(137
)(7
1)Cl
osin
g D
ebt
8.48
57.
747
6.96
46.
135
5.25
54.
323
3.33
52.
287
1.17
70
Ope
ratin
g In
com
e / E
BITD
AUS
D 0
00s
2.55
82.
551
2.54
42.
537
2.52
92.
522
2.51
52.
508
2.50
02.
493
1.94
31.
935
1.92
81.
920
1.91
21.
904
1.89
61.
888
1.88
01.
871
1.86
31.
854
1.84
61.
837
1.82
9
Dep
reci
atio
n91
891
891
891
891
891
891
891
891
891
891
891
891
891
891
891
891
891
891
80
00
00
0In
tere
st P
aym
ents
551
509
465
418
368
315
259
200
137
710
00
00
00
00
00
00
00
Inco
me
Befo
re T
axUS
D 0
00s
1.08
91.
123
1.16
11.
201
1.24
31.
289
1.33
71.
389
1.44
51.
504
1.02
51.
017
1.01
01.
002
994
986
978
970
961
1.87
11.
863
1.85
41.
846
1.83
71.
829
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
163
169
174
180
186
193
201
208
217
226
154
153
151
150
149
148
147
145
144
281
279
278
277
276
274
Net
Inco
me
USD
000
s92
595
598
71.
021
1.05
71.
095
1.13
71.
181
1.22
81.
278
871
865
858
851
845
838
831
824
817
1.59
11.
583
1.57
61.
569
1.56
21.
554
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
1.84
31.
873
1.90
51.
939
1.97
52.
014
2.05
52.
099
2.14
62.
196
1.78
91.
783
1.77
61.
770
1.76
31.
756
1.74
91.
742
1.73
51.
591
1.58
31.
576
1.56
91.
562
1.55
4D
ivid
ends
Tax
USD
000
s5%
9294
9597
9910
110
310
510
711
089
8989
8888
8887
8787
8079
7978
7878
Net
Fre
e Ca
sh F
low
USD
000
s1.
751
1.77
91.
810
1.84
21.
876
1.91
31.
952
1.99
42.
039
2.08
71.
700
1.69
41.
687
1.68
11.
675
1.66
81.
662
1.65
51.
649
1.51
11.
504
1.49
71.
491
1.48
41.
477
Tota
l Cas
h Fl
ows
for E
quity
Ret
urn
Calc
sEn
terp
rise
Valu
e Pa
idUS
D 0
00s
-18.
364
Deb
t Rec
eive
dUS
D 0
00s
9.18
2Fr
ee C
ash
Flow
sUS
D 0
00s
01.
751
1.77
91.
810
1.84
21.
876
1.91
31.
952
1.99
42.
039
2.08
71.
700
1.69
41.
687
1.68
11.
675
1.66
81.
662
1.65
51.
649
1.51
11.
504
1.49
71.
491
1.48
41.
477
Net
Cas
h Fl
ows
USD
000
s-9
.182
1.75
11.
779
1.81
01.
842
1.87
61.
913
1.95
21.
994
2.03
92.
087
1.70
01.
694
1.68
71.
681
1.67
51.
668
1.66
21.
655
1.64
91.
511
1.50
41.
497
1.49
11.
484
1.47
7[L
ever
aged
Equ
ity] I
RR19
,62%
Indi
cativ
e Fi
nanc
ial C
over
Rat
io C
alcu
latio
nsCa
sh b
efor
e fin
anci
ng2.
394
2.38
22.
370
2.35
72.
343
2.32
92.
314
2.29
92.
283
2.26
71.
789
1.78
31.
776
1.77
01.
763
1.75
61.
749
1.74
21.
735
1.59
11.
583
1.57
61.
569
1.56
21.
554
Deb
t Ser
vice
1.24
81.
248
1.24
81.
248
1.24
81.
248
1.24
81.
248
1.24
81.
248
Deb
t Ser
vice
Cov
er R
atio
1,92
1,91
1,90
1,89
1,88
1,87
1,86
1,84
1,83
1,82
Min
DSC
R1,
82Av
g D
SCR
1,87
Proj
ect L
ife C
over
Rat
io6,
00%
2,88
Loan
Life
Cov
er R
atio
6,00
%1,
88
2XE147-5-10M
W
Busin
ess
Plan
- Fi
nanc
ial M
odel
Park
Gor
i II 2
wtg
's E
-147
EP5
-5M
W H
ub=1
26m
17.
07.2
019
Life
-tim
e of
Pro
ject
12
34
56
78
910
1112
1314
1516
1718
1920
2122
2324
2526
Life
-tim
e of
Fee
d-in
-tarif
f1
23
45
67
89
10
Inst
alle
d Ca
paci
ty*
MW
102w
tg's
E-1
47 E
P5-5
MW
Hub
=126
m 1
7.07
.201
9CA
PEX
USD
000
s14
.793
NET
act
ual p
rodu
ctio
nM
Wh
44,1
0%P9
038
.632
38.6
3238
.632
38.6
3238
.632
38.6
3238
.632
38.6
3238
.632
38.6
3238
.632
38.6
3238
.632
38.6
3238
.632
38.6
3238
.632
38.6
3238
.632
38.6
3238
.632
38.6
3238
.632
38.6
3238
.632
Feed
-in-ta
riff
USD
/MW
h60
6060
6060
6060
6060
6060
Post
feed
-in-ta
riff
USD
/MW
h50
5050
5050
5050
5050
5050
5050
5050
50Re
venu
esUS
D 0
00s
2.31
82.
318
2.31
82.
318
2.31
82.
318
2.31
82.
318
2.31
82.
318
1.93
21.
932
1.93
21.
932
1.93
21.
932
1.93
21.
932
1.93
21.
932
1.93
21.
932
1.93
21.
932
1.93
2
Ope
ratin
g Co
sts*
USD
000
s57
41,
00%
574
580
586
591
597
603
609
615
622
628
634
640
647
653
660
666
673
680
687
693
700
707
714
722
729
* cu
rren
t ful
l FSA
EUR
900
k p.
a.O
pera
ting
Inco
me
/ EBI
TDA
USD
000
s1.
744
1.73
81.
732
1.72
71.
721
1.71
51.
709
1.70
21.
696
1.69
01.
298
1.29
11.
285
1.27
81.
272
1.26
51.
259
1.25
21.
245
1.23
81.
231
1.22
41.
217
1.21
01.
203
Dep
reci
atio
nUS
D 0
00s
2074
074
074
074
074
074
074
074
074
074
074
074
074
074
074
074
074
074
074
00
00
00
0
Inco
me
Befo
re T
axUS
D 0
00s
1.00
499
999
398
798
197
596
996
395
795
055
855
254
553
953
252
651
951
250
51.
238
1.23
11.
224
1.21
71.
210
1.20
3
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
151
150
149
148
147
146
145
144
144
143
8483
8281
8079
7877
7618
618
518
418
318
118
0
Net
Inco
me
USD
000
s85
484
984
483
983
482
982
481
881
380
847
446
946
345
845
244
744
143
543
01.
052
1.04
71.
041
1.03
51.
028
1.02
2
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
1.59
31.
588
1.58
31.
578
1.57
31.
568
1.56
31.
558
1.55
31.
548
1.21
41.
208
1.20
31.
198
1.19
21.
186
1.18
11.
175
1.16
91.
052
1.04
71.
041
1.03
51.
028
1.02
2D
ivid
ends
Tax
USD
000
s5%
8079
7979
7978
7878
7877
6160
6060
6059
5959
5853
5252
5251
51N
et F
ree
Cash
Flo
wUS
D 0
00s
1.51
41.
509
1.50
41.
500
1.49
51.
490
1.48
51.
480
1.47
51.
470
1.15
31.
148
1.14
31.
138
1.13
21.
127
1.12
21.
116
1.11
11.
000
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989
983
977
971
Initi
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vest
men
t (CA
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000
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3
Tota
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000
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31.
514
1.50
91.
504
1.50
01.
495
1.49
01.
485
1.48
01.
475
1.47
01.
153
1.14
81.
143
1.13
81.
132
1.12
71.
122
1.11
61.
111
1.00
099
498
998
397
797
1IR
R - p
roje
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turn
7,63
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With
deb
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Deb
t am
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000
s7.
397
50%
Perio
d1
23
45
67
89
10In
tere
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te6,
00%
6,00
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6,00
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00%
6,00
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6,00
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6,00
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Tota
l num
ber o
f per
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(rep
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clud
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1010
1010
1010
1010
1010
Prin
cipa
l (@
the
begi
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7.39
77.
397
7.39
77.
397
7.39
77.
397
7.39
77.
397
7.39
77.
397
Tota
l Ope
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Deb
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7.39
76.
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6.24
15.
610
4.94
24.
233
3.48
22.
686
1.84
294
8To
tal R
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t+Pr
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(1.0
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05)
(1.0
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(1.0
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(1.0
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(1.0
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(1.0
05)
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Prin
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(668
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(751
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96)
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)In
tere
st P
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(444
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10)
(374
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37)
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6.83
56.
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5.61
04.
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4.23
33.
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2.68
61.
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948
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BITD
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D 0
00s
1.74
41.
738
1.73
21.
727
1.72
11.
715
1.70
91.
702
1.69
61.
690
1.29
81.
291
1.28
51.
278
1.27
21.
265
1.25
91.
252
1.24
51.
238
1.23
11.
224
1.21
71.
210
1.20
3
Dep
reci
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n74
074
074
074
074
074
074
074
074
074
074
074
074
074
074
074
074
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444
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374
337
296
254
209
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111
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Inco
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560
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721
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802
846
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558
552
545
539
532
526
519
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1.23
81.
231
1.22
41.
217
1.21
01.
203
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
8488
9398
103
108
114
120
127
134
8483
8281
8079
7877
7618
618
518
418
318
118
0
Net
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me
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000
s47
650
052
655
358
261
364
668
171
976
047
446
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345
845
244
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543
01.
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1.04
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1.03
51.
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2
Free
Cas
h Fl
ow b
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D 0
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1.21
61.
240
1.26
51.
292
1.32
11.
352
1.38
61.
421
1.45
91.
499
1.21
41.
208
1.20
31.
198
1.19
21.
186
1.18
11.
175
1.16
91.
052
1.04
71.
041
1.03
51.
028
1.02
2D
ivid
ends
Tax
USD
000
s5%
6162
6365
6668
6971
7375
6160
6060
6059
5959
5853
5252
5251
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et F
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D 0
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1.15
51.
178
1.20
21.
228
1.25
51.
285
1.31
61.
350
1.38
61.
424
1.15
31.
148
1.14
31.
138
1.13
21.
127
1.12
21.
116
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D 0
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01.
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1.17
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1.22
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1.28
51.
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1.35
01.
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1.42
41.
153
1.14
81.
143
1.13
81.
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122
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155
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1.22
81.
255
1.28
51.
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1.35
01.
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1.42
41.
153
1.14
81.
143
1.13
81.
132
1.12
71.
122
1.11
61.
111
1.00
099
498
998
397
797
1[L
ever
aged
Equ
ity] I
RR16
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cativ
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alcu
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91.
618
1.60
61.
595
1.58
21.
569
1.55
61.
214
1.20
81.
203
1.19
81.
192
1.18
61.
181
1.17
51.
169
1.05
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1.04
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1.02
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Deb
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Deb
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81.
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81.
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1.73
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821
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51.
257
1.24
81.
240
1.23
21.
223
1.21
41.
206
849
840
831
822
813
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794
785
776
766
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746
736
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Dep
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D 0
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2054
254
254
254
254
254
254
254
254
254
254
254
254
254
254
254
254
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254
20
00
00
0
Inco
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axUS
D 0
00s
739
731
723
715
706
698
689
681
672
663
307
298
289
280
271
262
252
243
233
766
756
746
736
726
716
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
111
110
108
107
106
105
103
102
101
100
4645
4342
4139
3836
3511
511
311
211
010
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7
Net
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me
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000
s62
862
161
460
760
059
358
657
957
156
426
125
324
623
823
022
221
420
619
865
164
363
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div
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D 0
00s
1.17
01.
163
1.15
71.
150
1.14
21.
135
1.12
81.
121
1.11
41.
106
803
796
788
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772
765
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749
741
651
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634
626
617
609
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5858
5757
5756
5656
5540
4039
3939
3838
3737
3332
3231
3130
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000
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1.10
51.
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1.09
21.
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1.07
91.
072
1.06
51.
058
1.05
176
375
674
974
173
472
671
971
170
361
861
160
359
558
757
8
Initi
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vest
men
t (CA
PEX)
USD
000
s-1
0.84
4
Tota
l Cas
h Fl
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USD
000
s-1
0.84
41.
112
1.10
51.
099
1.09
21.
085
1.07
91.
072
1.06
51.
058
1.05
176
375
674
974
173
472
671
971
170
361
861
160
359
558
757
8IR
R - p
roje
ct re
turn
7,01
%
With
deb
t fin
anci
ng
Deb
t am
ount
USD
000
s5.
422
50%
Perio
d1
23
45
67
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10In
tere
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00%
6,00
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6,00
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6,00
%6,
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6,00
%6,
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6,00
%6,
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Tota
l num
ber o
f per
iods
(rep
aym
ents
)in
clud
ing
all f
ees
1010
1010
1010
1010
1010
Prin
cipa
l (@
the
begi
nnin
g of
repa
ymen
t per
iod)
5.42
25.
422
5.42
25.
422
5.42
25.
422
5.42
25.
422
5.42
25.
422
Tota
l Ope
ning
Deb
t Fac
ility
#1
5.42
25.
011
4.57
54.
112
3.62
23.
103
2.55
31.
969
1.35
169
5To
tal R
epay
men
t (In
t+Pr
inci
pal)
(737
)(7
37)
(737
)(7
37)
(737
)(7
37)
(737
)(7
37)
(737
)(7
37)
Prin
cipa
l Pay
men
t(4
11)
(436
)(4
62)
(490
)(5
19)
(550
)(5
84)
(619
)(6
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(695
)In
tere
st P
aym
ent
(325
)(3
01)
(274
)(2
47)
(217
)(1
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(153
)(1
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(81)
(42)
Clos
ing
Deb
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011
4.57
54.
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3.62
23.
103
2.55
31.
969
1.35
169
50
Ope
ratin
g In
com
e / E
BITD
AUS
D 0
00s
1.28
11.
273
1.26
51.
257
1.24
81.
240
1.23
21.
223
1.21
41.
206
849
840
831
822
813
804
794
785
776
766
756
746
736
726
716
Dep
reci
atio
n54
254
254
254
254
254
254
254
254
254
254
254
254
254
254
254
254
254
254
20
00
00
0In
tere
st P
aym
ents
325
301
274
247
217
186
153
118
8142
00
00
00
00
00
00
00
0
Inco
me
Befo
re T
axUS
D 0
00s
414
430
448
468
489
512
536
563
591
622
307
298
289
280
271
262
252
243
233
766
756
746
736
726
716
Corp
orat
e In
com
e Ta
xUS
D 0
00s
15%
6265
6770
7377
8084
8993
4645
4342
4139
3836
3511
511
311
211
010
910
7
Net
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me
USD
000
s35
236
638
139
841
643
545
647
850
252
926
125
324
623
823
022
221
420
619
865
164
363
462
661
760
9
Free
Cas
h Fl
ow b
efor
e ta
x on
div
iden
dsUS
D 0
00s
894
908
923
940
958
977
998
1.02
01.
045
1.07
180
379
678
878
077
276
575
774
974
165
164
363
462
661
760
9D
ivid
ends
Tax
USD
000
s5%
4545
4647
4849
5051
5254
4040
3939
3938
3837
3733
3232
3131
30N
et F
ree
Cash
Flo
wUS
D 0
00s
849
862
877
893
910
928
948
969
992
1.01
776
375
674
974
173
472
671
971
170
361
861
160
359
558
757
8
Tota
l Cas
h Fl
ows
for E
quity
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urn
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sEn
terp
rise
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idUS
D 0
00s
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844
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eive
dUS
D 0
00s
5.42
2Fr
ee C
ash
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sUS
D 0
00s
084
986
287
789
391
092
894
896
999
21.
017
763
756
749
741
734
726
719
711
703
618
611
603
595
587
578
Net
Cas
h Fl
ows
USD
000
s-5
.422
849
862
877
893
910
928
948
969
992
1.01
776
375
674
974
173
472
671
971
170
361
861
160
359
558
757
8[L
ever
aged
Equ
ity] I
RR15
,48%
Indi
cativ
e Fi
nanc
ial C
over
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io C
alcu
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nsCa
sh b
efor
e fin
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ng1.
219
1.20
91.
198
1.18
71.
175
1.16
31.
151
1.13
91.
126
1.11
280
379
678
878
077
276
575
774
974
165
164
363
462
661
760
9D
ebt S
ervi
ce73
773
773
773
773
773
773
773
773
773
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551,
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in D
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1,51
Avg
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59Pr
ojec
t Life
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er R
atio
6,00
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33Lo
an L
ife C
over
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io6,
00%
1,59
Recommended