List of new Transmission Capacities and Interconnection Lines · PDF fileLIST OF NEW TRANSMISSION CAPACITIES AND INTERCONNECTION LINES (2011-2020) LIST OF NEW TRANSMISSION CAPACITIES

LIST OF NEW TRANSMISSION CAPACITIES AND

INTERCONNECTION LINES 2011-2020

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ver. 1.0 faqe 1 nga 38 Departamenti ; OPERATORI I SISTEMIT Sektori: Zhvillimi i Sistemit and Planifikimi Afatgjatë

LIST OF NEW TRANSMISSION CAPACITIES AND INTERCONNECTION LINES

(2011-2020)



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ver. 1.0 faqe 2 nga 38 Department ; SYSTEM OPERATOR Sector: System Development and Long-term Planning

Table of Contents ABBREVIATIONS ............................................................................................................. 3

Foreword ............................................................................................................................. 4

1. Transmission network of the Republic of Kosovo .................................................. 5

1.1 Developments in the Transmission Network.............................................................. 5

2 Current transmission network capacities – 2010 ..................................................... 7

2.1 Current capacity of Transmission Lines ................................................................ 9

2.2 Current transformation capacities ........................................................................ 10

2.3 Current capacity of power exchange with the neighboring countries ................... 11

3 Development of new transmission network capacities 2011-2020........................ 14

3.2 Capacity of Transmission Lines – 2011-2020 configuration........................... 18

3.3 Transformation capacities development 2011-2020 ........................................ 20

3.4 Interconnection line capacities 2011-2020 ....................................................... 23

4 Regional developments of the transmission systems ........................................... 28

4.1 Introduction ...................................................................................................... 28

4.2 Mid-term projects in the South-East Europe network .................................. 29

4.3 Long-term projects in the South-East European network ............................ 30

Bibliography .................................................................................................................... 35

Table -A-2 Minimal forested load of the Electricity systems of South-East European

countries ........................................................................................................................ 37



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ABBREVIATIONS

KOSTT – Transmission, System and Market Operator j.s.c.

MEM – Ministry of Energy and Mining

KEK – Kosovo Energy Corporation j.s.c.

SEE – South East Electricity System

DSO – Distribution System Operator

ERO – Energy Regulatory Office

ENTSO/E – European Network of Transmission System Operators for Electricity

TDP – Transmission Development Plan

SITC – Simultaneous Interconnection Transmission Capacity



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Foreword Transmission network is one of the three main pillars of the Kosovo Electricity

System. Generation, transmission and distribution are the main basic components of modern electricity systems. Duties of the transmission network include bulk transmission of electricity generated by generators of the system or cross border lines, at long distanced up to distribution nodes with a high reliability, quality and efficiency. Based on TSO license Article 10.2, Transmission System Operator every two years shall develop a list of new regional and interconnection transmission capacities, according to needs of Kosovo.

This document, which covers a period from 2011-2020, is based on the Transmission Development Plan for the Kosovo (2010-2019). The Document contains list of actual transmission network capacities, and plans for new transmission capacities and interconnection capacities. The Document also contains data about actual capacities of interconnection lines of transmission systems of Southeast Europe countries as well and long term development plans for new interconnection capacities.



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1. Transmission network of the Republic of Kosovo

1.1 Developments in the Transmission Network

Transmission network of Republic of Kosovo during the past years has been

developed in several stages of expansion, reinforcement and consolidation. The network

development stage started in the 50-s with the construction of the 100kV line and several

100/35kV Substations. Construction of generation capacities of TPP Kosovo A started in

the period 1960-1970, and was followed with the development of new transmission

capacities, both lines and transformers. The rapid development in the Transmission network

occurred in the period 1970-1980, and for the first time a move towards 400kV voltage level

was made with the construction of interconnection lines with Serbia and Macedonia.

Developed also continued for the period 1980-1989, which is also distinguished with an

increase of generation capacities (TPP Kosovo B ) as well as transmission capacities, such as

third 400kV interconnection line with Montenegro, 220kV line with Albania and main

transformer nodes me, including: SS Kosovo B, SS Prishtina 4, SS Prizren 2 and SS Drenas.

The 110kV network was also developed in this period with distribution nodes or substations

located in, or near, main cities of Kosovo. Figure 1- 1 and 1- 2 indicate investments in

substations and lines for the previous period.

0

1

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1950 1954 1958 1962 1966 1970 1974 1978 1982 1986 1990 1994 1998 2002 2006

SS/year

Fig. 1-1. Period and number of SS installations per year



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Fig. 1-2 Period and km of lines constructed per year

Both figures above indicate a lack of investments for the period 1989-2001 as a result

of political developments and the recent war in Kosovo. After the war in Kosovo, gradual investments commenced in the energy sector

including in the transmission network. The period 2000-2007 had no sufficient investments in the Transmission network. There was no significant increase of transmission system capacities, despite a continuous increase of consumption. After establishment of KOSTT in 2006, considerable activities are subsequently initiated resulting with decisive projects in increasing Transmission capacities. First effects of this activity were visible in the end of 2009 with the implementation of numerous important projects for the increase of transmission capacities. Table 1-1 shows implemented projects until end 2010 for the increase of Transmission capacities.

Line km/year



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Table 1-1 Implemented projects 2000-2010 Nr. Title of project Main features Year

1 AT3 in SS Kosovo B 400/220 kV Third autotransformer 400 MVA 20032 AT3 in SS Kosovo A, 220/110 kV AT3 replacement, 150 MVA 20033 SS Podujeva 220/35/10 kV 2x40 MVA 20034 Replacement of the conductor in the 110

kV line, No 164/1 SS Gjakova 1-SS Gjakova 2

Replacement of the conductor from 150 mm2 to 240 mm2, 4.9 km

2003

5 double 110 kV line from SS Kosovo A in SS Prishtina 5

AlÇe 240mm2, 5.5km 2005

6 Replacement of the conductor in the 110 kV line, No. 125, SS Kosovo A- SS Vushtrri 1& 2

“HW” 150mm2, 24km 2007

7 Replacement of the conductor in the 110 kV line, No. 164/3, SS Prizren 1- SS Prizren 2

“HW” 150mm2, 3.2km 2007

8 110 kV line in SS Prizren 2 - SS Rahovec AlÇe 240mm2, 17.25km 2008

9 Package Project PEJA 3 SS Peja 3, 400/110kV (300MVA), 110kV line for SS Skenderaj, 110kV line for Klinë.1

2009

10 AT3 150MVA in SS Kosovo A 150MVA, 220/110kV 2009

11 Adaptation of the line L212 in the 110kV line

37km from SS Kosovo A to SS Ferizaj 1 2009

12 Replacement of the conductor in 110kV line, No. 126/1, SS Deçan – SS Gjakova 1

Replacement of the conductor from 150mm2 to 240mm2, 20.2 km

2009

13 AT3 150MVA in SS Prishtina 4 150MVA, 220/110kV 2010

2 Current transmission network capacities – 2010 Kosovo transmission network operates with three voltage levels 400kV, 220kV, and

110kV. Transmission system of Republic of Kosovo is interconnected through cross border lines with four neighboring countries: Serbia, Macedonia, Montenegro and Albania. In the regional aspect, Kosovo transmission system has an important role in transactions of electricity trades developed in the region.

Powerful horizontal network and particularly the 400kV, strong interconnection with neighboring countries determines the important role in our system in the electrical energy aspect. Figure 2-3 shows the unipolar scheme of the electricity system in Kosovo as per the recent situation in end 2010. 1 110kV line SS Klina- SS Peja 3 entered into operation in 2010, and SS Skenderaj is not yet connected.



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Currently, very high volumes of electricity are transferred through horizontal network, which is around 62% of annual consumption of Kosovo. To have a clearer overview of the network network capacity of Kosovo, a separate assessment is made of the horizontal network capacity and the network capacity to supply the internal consumption. Horizontal network capacity has an impact on imports, exports and transits of energy flows, however its impact is not significant in the internal network capacity based on the particular configuration of ES in Kosovo, particularly that of 400kV. In reference to the TDP 2010-2019 transmission internal capacity for the current year 2010 is:

1250 MW according to the criterion N of the system operation (will all

elements in operation) 850 MW according to criterion N-1

Figure 2-1 indicates internal transmission network capacity developments from 2008 to

end 2010. Capacity according to criteria N and N-1 is compared to the seasonal consumption in Kosovo. The effects of transmission network internal capacity increase projects completed in 2009 and 2010 can also be seen in Figure 2-1. Operation in normal network conditions has improved considerably and provides for a sufficient security margin, however criterion N-1 is insufficient for certain parts of the network.

930

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MW

Capacity N (MW) Load (MW) Capacity /N-1 (MW)

Figure 2-1 Internal transmission network capacity development from 2008 to 2010.



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2.1 Current capacity of Transmission Lines

Table 2-1 and Figure 2-2 indicate the transmission lengths and capacities for the existing transmission lines of Kosovo, based on the end 2010 situation 2010 [3]. Transmission Capacity Ct represents the amount for all generation lines of nominal thermal capacity of each line separately. This amount is defined in the Grid Code, which estimates the transmission capacity of 400kV, 220kV and 110kV lines. Table 2-1 Lengths of transmission lines and their transmission capacity.

Overhead lines 2008

Total length in Kosovo [km]

Transmission capacity Ct=Sn*L [MVA km]

400kV 181.4 238846 220kV 231.82 77506 110kV 727.6 80573

The data of Table 2 illustrated in a chart provide the overview as shown in Figure 2-2 below

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Kapaciteti Transmetues [MVA*km] Gjatësia e linjave

MVA*km km

Line lengthTransmission Capacity MVA*km

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Kapaciteti Transmetues [MVA*km] Gjatësia e linjave

MVA*km km

Line lengthTransmission Capacity MVA*km

Fig. 2-2 Graphical presentation of the data from Table 2

Figure 2-2 shows that the earlier concept of the Kosovo transmission network is

developed towards increasing exporting capacities, with no due care given to the increase of transmission capacities for internal consumption needs. It can be seen from the diagram that the 400 kV network capacities are very powerful, whereas 220 kV network capacities are slightly fewer than 100 kV network capacities. Comparing the 100 kV network capacities for



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the current year (80573 MVA*km) an for 2008 (65845 MVA*km), a conclusion can be reached that the 100 kV network has been reinforced satisfactorily (22.3%)

2.2 Current transformation capacities

Current transformation capacities of the transmission network managed by KOSTT are mainly installed in 400/220kV, 400/100kV and 220/110kV substations.

Highest transformation capacity is installed in SS Kosovo B 400/220kV. Three nominal power 400MVA autotransformers of nominal power have been

installed in this substation. Total transformation capacity of this substation is 3*400 = 1200MVA SS Peja 3, 400/110kV has only one autotransformer with a nominal power of 300MVA installed. SS Kosovo A, 220/110kV has currently three autotransformers installed with a nominal power of 150MVA with a total transformation capacity of 450MVA.

SS Prishtina 4, currently has three autotransformers with a nominal power of 150MVA, with a total transformation capacity of 450MVA.

SS Prizren 2, 220/110kV currently has two autotransformers AT1=150MVA and AT2 =150MVA, with a total transformation capacity of 300MVA. (In 2011 a third 150MVA autotransformer will be installed). Table 2-2 shows the current transformation capacities for the Kosovo’s transmission network. Table 2-2 Current transformer capacities in the Transmission Network

AUTOTRANSFORMER Number of Autotransf.

Total transformation capacity (MVA)

400/220kV -SS Kosovo B

3 1200MVA

400/110kV -SS Peja 3

1 300MVA

220/110kV - SS Kosovo A -SS Prishtina 4 - SS Prizren 2

3 3 2

1200MVA 450MVA 450MVA 300MVA

Total 12 2700MVA

An increase of 23% can be seen comparing total transformation capacities for the current year 2010 (2700MVA) with 2008 (2200MVA).



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2.3 Current capacity of power exchange with the neighboring countries

Maximal capacity of power exchanges with the neighboring countries (with natural

power of lines) with high voltage transmission lines is 1740 MW. In 400kV lines, the existing cross-border transmitting capacity is around 1500 MW (3x500 MW), and the in the 220kV it goes up to 240 MW (120 MW line with Albania and 120 MW line with Krushevac – Serbia).

NTC2 (Net Transfer Capacity) of interconnection lines in Kosovo depends on the regional electricity balance in the neighboring countries and from limitations to the regional horizontal network which may appear in various operation regimes. Table 2-3 shows current interconnection line capacities according to their natural power (P), NTC and nominal thermal power (Sterm) [10]

Table 2-3. Current interconnection line capacities

Voltage level Natural power Thermal NTC

[kV] [MW] [MVA] [MW]Kosova - Serbia 600SS Kosova B- SS Nish 400 500 1317SS Podujeva - SS Krushevc 220 120 300Kosova - Macedonia 400*SS Ferizaj 2 - SS Shkupi 5 400 500 1317Kosova - Montenegro 400SS Peja 2 - SS Ribarevina 400 500 1317Kosova - Albania 210*SS Prizreni 2 - HPP Fierza 220 120 300* From https://www.entsoe.eu/fileadmin/user_upload/_library/ntc/archive/NTC-Values-Winter-2010-2011.pdf

INTERCONNECTION LINES and SYSTEMS

Simultaneous Interconnection Transmission Capacity (SITC) is different from that of NTC, and is calculated for both:

When the electricity system simultaneously imports from all interconnections (in different time periods), until the first limitation appears in the horizontal network for the importing country and the exporting countries (for criterion N-1).

When the electricity system simultaneously exports from all interconnections (in different time periods), until the first limitation appears in the horizontal network for the exporting country and the importing countries (for criterion N-1).

2 NTC – is the maximal total of electricity exchange between to controlling areas, in line with applicable security standards of all regulated areas and taking into consideration technical uncertainties of the network. (Definition extracted from the manual of ENTSO-E).



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Calculation is carried out through the software PSS/E, based on the long-term

projections of the demand and generation for the regional countries interconnected with development plans of regional transmission systems [8]. Natural flows in the interconnection lines represent flows determined from the system impedance, generation location and the load when individual systems are balanced (without exchanges). Natural flows are amongst the first factors which have an impact in various simultaneous of the interconnection for the case of import and export.

Simultaneous Interconnection Transmission Capacity is not calculated as total of the Net Transfer Capacity (NTC) and as such is significantly lower3.

Currently SITC of the Kosovo transmission system is around 900MW for power imports, and 1000MW for exports. Taking into account the projected electricity balance, it can be considered that current interconnection capacities are very powerful and enable any exchange program for the Kosovo electricity system.

3 ENTSO/E Report: System Adequacy Forecast 2009-2020



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KOSOVO POWER SYSTEM SINGLE LINE DIAGRAMKOSOVO POWER SYSTEM SINGLE LINE DIAGRAM

Figure 2-3 Power System single line diagram of the Republic of Kosovo – current configuration 2010



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3 Development of new transmission network capacities 2011-2020 After establishment of Kosovo Transmission, System and Market Operator (KOSTT)

significant activities were developed for the transmission network long term planning. The

state of the the transmission network has been analyzed in detail in this stage and best

options for network reinforcement have been provided, with the aim of enhancing reliability

and security of supply to consumers. According to the Grid Code and its legal requirements,

KOSTT develops a (10 year) Transmission Development Plan, revised on a yearly basis. The

second plan, adopted by ERO (TDP 2010-2019) includes a list of projects on

reinforcements in the transmission network for time period 2010-2019.

Table 3-1 shows projects for the reinforcement of the Transmission network capacity as per the TDP 2010-2019[3]. Table 3-1 Transmission capacities development according to the TDP-2010-2019

No Project Project characteristics In

operation

1 Interconnection of SS Lipjan in the 110 kV line L112

Dual 110 kV line, 240mm2 with a length of 5km from SS Lipjan to the most optimal connection point in line L112 (Kosovo A- Ferizaj1) .

2011

2 Revitalization of 110 kV line: L126/2 SS Peja 2- SS Deçan

Replacement of the 150/25mm2 conductor to 240/40mm2 with a length of 14.57 km from SS Peja 2 to SS Deçan. Reinforcement of concrete pillars and replacement of the existing composit insulators.

2011

3 Replacement of the conductor L126/5

Replacement of the conductor from 150/25mm2 to 240/40mm2 with a length 4.6km from Peja 1 to Peja 2.

2011

4 Packet Project Ferizaj 2:

Autotransformer 300 MVA Dual line 2x490mm2, ASCR, 4.3km Dual line 110kV, ASCR 240mm2, 5.1 km 110kV line, 240mm2, 27 km

2011

5 AT3-150 MVA in SS Prizren 2

Autotransformer 150 MVA, 220/110kV

2012

6 Allocation of the line L1806 from SS Gjakova 1

4km in length from SS Gjakova 1, pillars and conductors should be dismounted and used in the curve track of 4km which is connected in SS Gjakova 1

2012

7 AT2-300 MVA in SS Autotransformer 300 MVA, 400/110kV 2012



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PEJA3

8 Revitalization of lines 110 kV: L125/2 & L125/3

Replacement of the conductor from 150/25mm2 to 240/40mm2 with a length of 9.6 km from SS Trepça to to SS Vushtrri 1 and with a length 6km from SS Trepça in SS Vaganica

2012

9 Interconnection line 400 kV SS Kosovo B - SS Kashar

400 kV line, 2x490mm2, with a length of 239 km of which 85.5 km in the territory of Kosovo

2012

10 Revitalization line 110 kV: L163/1

Replacement of the conductor from 150/25mm2 to 240/40mm2 with a length of 32 km from SS Kosovo A to SS Vaganica

2013


Replacement of the conductor from 150/25mm2 to 240/40mm2 with a length of 7.3 km from SS Prishtina 1 to SS Kosovo A

2013


Replacement of the conductor from 150/25mm2 to 240/40mm2 with a length of 28.7 km from SS Ferizaj 2 to SS Sharr.

2014


Replacement of the conductor from 150/25mm2 to 240/40mm2 with a length of 39.42 km from SS Ferizaj 1 to SS Therandë

2015

14 New line 110 kV SS Peja 3- SS Peja 1

Construction of the 110kV line in a length of 28km, Al.Çe240mm2

2015

15 AT2-300 MVA in SS Ferizaj 2

Autotransformer 300 MVA, 400/110kV 2017

TDP 2010-2019 Annexes also indicate the potential projects both in load support

and in accommodating new generation capacities. The realization of these potential projects would be greater from the network capacities presented in the fifth chapter of TDP 2010-2019. Table 3-2 includes a list of the aforementioned projects and their overall characteristics of required capacities of the lines and autotransformers of the relevant network network.



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Table 3-2 Development of optional additional Transmission capacities according to the TDP-2010-2019

No Project Project characteristics In

operation

1 SS Gjilan 5, 110/10(20) kV (confirmed)

Substation shall be supplied from the double 110 kV line, 9 km, 240mm2 connected in the current line Gjilan-Viti (L1802). Third line in this SS shall come from SS Ferizaj 2 after its construction.

2011

2

Enhancement of the security of supply of SS Palaj (confirmed)

Through the double 110 kV line, 240mm2 with a length of 2km from SS Palaj a connection will be possible in the disconnecting of the current line SS Kosovo A-SS Vallaq (L163) 2011

3

SS Vaganica, 110/35/10(20) kV (confirmed),

Line 3.64km, 240mm2 110 kV connected in the current line L126/4 shall be connected in SS Vaganica. In addition, cutting of the current line L125/3 shall be carried out, in which case with the use of shorter double 110 kV lines shall be connected in SS Vaganica.

2011

4 SS Fushë Kosovo 110/10(20) kV

Connection of the double line of 1km, 240mm2, in the line L112/1 Kosovo A –Lipjan (currently Ferizaj 1) 2013

5 SS Prishtina 6 110/10(20) kV

Dual underground 1000mm2 cable (740A) with a length of 5.3km, connected in SS Prishtina 4 2014

6 SS Drenas 3 110/10(20) kV

Installation of the Autotransformer 150MVA, 220/110kV in the NS Drenas 1, construction of SS Drenas 3 and connection in Drenas 1 through the double 110kV line, with a length of 9km

2014

7 SS Shtime 110/10(20) kV

Connection of the double line 1km, 240mm2, in the line L179/2 SS Ferizaj 1 – SS Therandë 2014

8 SS Dragash 110/10(20)kV

The project shall be interlinked with the development of the project HPP Zhuri, where SS Dragash shall be supplied through two 110kV lines. One line (22km) shall be connected in HPP Zhur 2, and the other (22.5 km) shall be connected in SS Prizren 2. The segment of 22.5 km from with Dragash to SS Prizren 2 will be with double pillars.

2015

9 SS Malisheva 110/10(20)kV

SS Malisheva shall be supplied through two 110kV lines, 240mm2, on with a length of 19 km which shall be connected in SS Rahovec and the other with a length of 17 km in Therandë.

2016

10 SS Kaçanik Connection of the double line 1km, 240mm2, in the line L118/3 SS Ferizaj1 1 – SS Sharr 2018

PROJECTS INTERRELATED WITH THE POSSIBLE GENERATION DEVELOPMENTS

1 TPP Kosova e Re, 400kV

Connection in SS Kosovo B with a double 400kV line, 1.1km. fourth autotransformer 400MVA in SS Kosovo B 2016

2 HPP Zhur, 110kV The HPP shall interconnected with four 110kV lines, the double 110 kV line, 360mm2 with a length of 10km shall be connected in 2017



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SS Prizren 2. The other 110kV line, 240mm2 with a length of 13 km shall also be connected in SS Prizren 2, and one line of 3km shall connect HPP Zhur 1 with HPP Zhur 2, whereas HPP Zhur 2 shall be connected with a 240mm2 line, of 22km with SS Dragash.

3 Interconnection line 400 kV SS Kosovo B - SS Skopje 5

400 kV line, 2x490mm2, with a length of 90.4 km of which 68.2 km in the territory of Kosovo 2020

Network capacities projected in the TDP 2010-2019 shall be sufficient to

accommodate the power flows in line with the projected consumption and the expected increase of generation capacities, for a time period as envisaged in the long-term development plan. The projected network according to the TDP shall not have any bottlenecks, and its electrical parameters shall within the allowed limits in accordance with the Grid Code. Network capacities will have a sufficient security margin to handle the maximal load forecasted for future years and, in almost all elements of the N-1 criteria will be met. The Quality of transmitted power will be within the allowed limits in accordance with the Grid Code.

The implementation of the projects included in the TDP 2010-2019 will enable a significant increase of the transmission capacity of the internal transmission network, which in 2020 will reach around 2100 MW. This capacity shows the system transmission ability to supply for internal consumption, with all its elements in operation (criterion N). As of beginning 2014, Kosovo’s transmission system will be capable of meeting the security criterion N-1. In end 2020, internal network capacity of criterion N-1 will reach 1480 MW. Figure 3-1 shows the development of internal network capacities in relation to the load development (disaggregated in quarters).

2100

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500600700800900

1000110012001300140015001600170018001900200021002200

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Capacity N (MW) Load (MW) Capacity /N-1 (MW)MW

Figure 3-1 Development of internal transmission network capacities 2011-2020



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Most influential projects for the increase of internal transmission network capacities are the creation of two powerful nodes: SS Peja 3 and SS Ferizaj 2. Construction of new 100kV lines interrelated with the two aforementioned projects and in separate projects, increase of capacities in several 100 kV lines from 83MVA (150mm2) to 114MVA (240mm2), increase of transmission capacities in all main Substations, and construction of new distribution Substations associated with new connection lines are essential reinforcements which would have an impact in the increase of internal transmission capacity as shown in Figure 3-1.

In terms of increasing interconnection capacities with a significance for the ES of the Republic of Kosovo, and countries connected to these lines and Regional Transmission Systems, the two 400 kV interconnection lines are relevant.

- SS Kosovo B – SS Kashar (Kosovo – Albania) - SS Kosovo B – SS Skopje 5 (Kosovo – Macedonia) The second interconnection 400 kV line is still in the inception phase and is yet to

undergo detailed feasibility studies. However, it is ranked in development projects of ENTSO/E amongst candidate long-term projects [8].

Construction of two new interconnection lines will enable the accommodation of new generation capacities which are expected to be constructed in Kosovo. Their construction shall enable the intensification of cross-border and regional electricity exchanges. Positive impacts will also be reflected in increasing the stability and security of electricity system’s operation in the regional countries, and the reduction of bottlenecks in the horizontal regional network.

3.2 Capacity of Transmission Lines – 2011-2020 configuration Table 3-3 shows the lengths and transmission capacities of lines’ lengths corresponding to 2020. Table 3-3 Lengths of Transmission network lines and their transmission capacity for the network configuration in 2020.

Overhead lines 2008



400kV 267 363380 220kV 232 77434 110kV 867 102219



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Comparison of the data in Tables 2- and 3-3 indicates the following: An increase of the Ct[ km*MVA] capacity of 400kV lines for 52% An increase of the Ct[ km*MVA] capacity of 110kV lines for 27%

Figure 3-2 shows the development of transmission line capacities according in years (2011-2020).

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2011 2012 2013 2014 2015 2016 2017 2018 2019 20200100200300400500

6007008009001000

Lines 400kV Lines 220kV Lines 110kV

Lines 400kV-km Lines 220kV-km Lines 110kV-kmkm*MVA km

Fig. 3-2 Capacity development and total length of 400kV, 220kV and 110kV lines for the next 10

years It can be seen from Figure 3-2 that 220kV line capacity doesn’t suffer any changes,

as according to the strategic objectives of KOSTT, this network is not expected to be developed any further. There will mainly be developments in the 400kV and 110kV lines.

According to other potential or optional projects presented in the TDP 2010-2019 the line capacity will be significantly higher. Data of transmission line capacities for 2020 with an inclusion of other optional projects are shown in the following table. Table 3-4 Lengths of Transmission network lines and their transmission capacity for the network configuration of 2020 with the inclusion of optional projects

Overhead lines 2008



400kV 344 452936 220kV 232 77434 110kV 1076 126098

Comparing the data of tables 2-1 and 3-4 indicates the following:

Increase of Ct[ km*MVA] capacities of 400kV lines for 90%



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Increase of Ct[ km*MVA] capacities of 110kV lines for 56% Figure 3-3 shows the development of transmission line capacities according the the relevant year (2011-2020) corresponding to table 3-3.

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2011 2012 2013 2014 2015 2016 2017 2018 2019 20200

200

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Lines 400kV Lines 220kV Lines 110kV

Lines 400kV-km Lines 220kV-km Lines 110kV-kmkm*MVA km

Figure 3-3 Capacity development and total length of 400kV, 220kV and 110kV lines for the next 10 years

3.3 Transformation capacities development 2011-2020

The continuous increase of the load on one side, and the fulfillment of technical

criteria deriving from the Grid Code on the other are the main factors in increasing transformation capacities in relevant time sequences, as stipulated in the TDP 2010-2019. In end 2011, in the project SS Ferizaj 2, 400/110kV, initially only one Autotransformer 300MVA will be installed, whereas the need for a second Autotransformer will be identified in end 2017. In SS Prizren 2, 220/110kV the third 150MVA Autotransformer shall be installed in end 2012. Also in 2012, it is planned that in SS Peja 3, 400/110kV a second



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Autotransformer 300MVA shall be installed. If the project for the industrial zone in Drenas in implemented, which is considered as optional, the distribution station Drenas 1 will be converted into SS Drenas 1 with one 150MVA Autotransformer [3]. The time of this project’s implementation is yet to be defined. However, according to indications of the consumption development, it is assumed that it will occur in 2014. It will be required to also install the fourth 400MVA Autotransformer in SS Kosovo B if three generation units are connected in this Substation (3x300MW) as per the project TPP Kosova e Re.

The following table shows the development of transformation capacities for the next

10 years.

Table 3-5 Installed transformer capacities in the transmission network until 2020 AUTOTRANSFORMER Number of

AutotransformerTotal transformation

capacity (MVA) 400/220kV

-SS Kosovo B 3 1200MVA


-SS Ferizaj 2

2 2

1200MVA 600MVA 600MVA

220/110kV - SS Kosovo A -SS Prishtina 4 - SS Prizren 2

3 3 3

1350MVA 450MVA 450MVA 450MVA

Total 16 3750MVA

Figure 3-4 shows the development of transformation capacities according to the relevant year (2011-2020) which corresponds to 3-5.



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0100200300400500600700800900

100011001200130014001500

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

ATR 400/110kV ATR 400/220kV ATR 220/110kVMW

Fig. 3-4 Development of transformation capacities for the next 10 years according to the TDP 2010-

2019 Including the optional projects, the transformation capacities will be significantly higher. Table 3-6 shows the transformation capacity for 2020 according the voltage level of Autotransformers, and including optional projects.

Table 3-6 Installed transformation capacities in the transmission network until 2020 with the inclusion of optional projects

AUTOTRANSFORMER Number of autotransformer

s

Total transformation capacity (MVA)

400/220kV -SS Kosovo B

4 1600MVA


-SS Ferizaj 2

2 2

1200MVA 600MVA 600MVA

220/110kV - SS Kosovo A -SS Prishtina 4 - SS Prizren 2 -SS Drenas 1

3 3 3 1

1500MVA 450MVA 450MVA 450MVA 150MVA

Total 18 4300MVA

Figure 3-5 indicates the development of transformation capacities through the years corresponding to table 3-6



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0100200300400500600700800900

10001100120013001400150016001700

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

ATR 400/110kV ATR 400/220kV ATR 220/110kVMW

Figure 3-5 Development of transformation capacities for the next 10 years including optional projects

3.4 Interconnection line capacities 2011-2020

Chapter 2 of this document describes the current interconnection capacity of the Kosovo transmission system as very powerful capacity in relation to the electricity system demands for power imports and exports. The Generation Adequacy Plan 2011-2020[x], describes planned and potential developments in generation which should be supported with new transmission network capacities in order for the generation and system adequacy are fully coherent with each other. Kosovo interconnection capacity is also affected by the regional network developments. Power flows in lines and transformers are subjected to Kirchhoff's current law and power balances of each system separately. TDP (2010-2019) shows the developments in the interconnection network, and interconnection capacity increases for the transmission system in Kosovo are included with the construction of the 400kV line, 2x490mm2, Kosovo – Albania. Optional projects also include the second 400kV line Kosovo – Macedonia, the implementation of which relies on Kosovo’s generation developments and regional energy market developments. The period of the project’s implementation is only tentative, as there is no detailed study on its feasibility. In addition, TDP (2010-2019) also shows the option of the annular configuration of the 400 kV network (shown in Figure 3-8) the implementation of which depends on the level of installed generation capacities in Kosovo for the future long-term period. A study carried out by the German consultancy company “FISHNER” (2010) in relation to the future configuration of the 400kV and 110kV network shows the future network development for the upcoming 15



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years. In this study, the annular configuration of the 400kV network starts after 2020. A proposed vision for network development deriving from this study is shown in Figure 4-4. Table 3-7 shows the Kosovo transmission system interconnection line capacity. The last column of this table shows the average NTC between the Kosovo and neighboring countries’ Transmission System.

Table 3-7 Interconnection capacities of the Kosovo transmission system in 2020

Voltage level Natural power Thermal NTC[kV] [MW] [MVA] [MW]

Kosova - Albania 700SS Kosova B- SS Kashar 400 500 1317SS Prizreni 2 - HPP Fierza 220 120 300Kosova - Serbia 600SS Kosova B- SS Nish 400 500 1317SS Podujeva - SS Krushevc 220 120 300Kosova - Macedonia 800SS Ferizaj 2 - SS Shkupi 5 400 500 1317SS Kosova B -SS Shkupi 5* 400 500 1317Kosova - Montenegro 400SS Peja 2 - SS Ribarevina 400 500 1317*optional

INTERCONNECTION LINES and SYSTEMS

Simultaneous Interconnection Transmission Capacity (SITC) is different from and is not calculated as an amount of respective NTCs. Figure 3-6 shows the SITC development for the next 10 years in relation to the forecasted generation adequacy [10].

SYSTEM ADEQUACY

-1500-1300-1100

-900-700-500-300-100100300500700900

110013001500

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

SITC Export [MW] SITC Import [MW]GA=RC - ARM (Conservative generation) GA=RC - ARM Generation-MEM)

MW

Figure 3-6 Development of Simultaneous Interconnection Capacity (SITC) in relation to the

generation adequacy for the next 10 years



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Simultaneous Interconnection Capacity for electricity export in 2020 will be around 1500MW, and around 1400MW for imports. If the second interconnection 400kV line is constructed with Macedonia, then SITC will be significantly higher. This is shown in Figure 3-7.

SYSTEM ADEQUACY

-2000-1800-1600-1400-1200-1000-800-600-400-200

0200400600800

100012001400160018002000

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

SITC Export [MW] SITC Import [MW]GA=RC - ARM (Conservative generation) GA=RC - ARM Generation-MEM)

MW

Figure 3-7 Development of Simultaneous Interconnection Transmission Capacity (SITC) in relation

to generation adequacy for the next 10 years, taking into consideration the second 400kV line Kosovo - Macedonia

Figure 3-8 shows the long-term vision of 400kV network development based on the optional ideas of TDP 2010-2019, whereas Figure 3-9 shows the unipolar scheme representing Kosovo ES in 2020. This scheme also includes optional or potential projects which are expected to be implemented during the next 10 years.



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Figure 3-8 Long-term vision of the horizontal network development in Kosovo 2015-2025



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Fig. 3-9 Overview of the Power System in the Republic of Kosovo according to the TDP 2010-2019 also including optional projects



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4 Regional developments of the transmission systems

4.1 Introduction The planning process of the transmission network of each country in the region is

determined from the electricity demand forecast and generation capacity development. No Southeast Europe country has generation capacities to meet consumption; therefore a large number of them are dependent on electricity imports. Currently, the highest demands for imported electricity exist in Greece, Italy, Croatia, Hungary, Albania, Kosovo and Montenegro. However, all these countries have their own plans for construction of various generation capacities, depending on their primary energy sources.

Kosovo is potentially expected to be an electricity exporter, always based on the large quantities of primary energy lignite-based resources [x-y]. The current transmission infrastructure in Southeast Europe will not meet the technical criteria for the future 10 year period, if new capacities are not created (lines, substations). The Transmission network in the South-East Europe region is not as dense as the other part of the continent’s network. As seen in the electrical map in Figure 4-1, new required projects are presented to increase the import and export capacities between the South-East Europe and the Central Europe. Main reasons for perspective developments include:

Contribution in the electricity market integration in the region. Reinforcement of the network to accommodate new conventional generation

capacities and to increase interconnection capacities to enable the increase of interstate exchange volumes.

Accommodation of future renewable energy sources. Potential expansion of the synchronized area to the East (integration of

Turkey, etc). Dominant power flows in the South-East Europe region are mainly towards the North-South and East-West wings. These flows are subjected to the power balances and the market price of each individual country. The Block containing Greece, Macedonia, Albania and Kosovo are countries with a mainly negative balance in certain periods (seasons). Imports of the aforementioned countries are mainly realized with countries which have a positive balance, and export power surpluses; such countries commonly are Bulgaria and Rumania. Importing countries on side and exporting countries on the other dictate a power flow north to south. Identified limitations to the region’s horizontal network with dominant power flows hinder market integration, which is the main incentive to develop mid-term and long-term projects to reinforce the network. These encouraging factors are mainly identified in the Northern boundaries of the region and in the Southern part, as indicated in Figure 4-1.



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Investments are required in the mid-term to develop new generation capacities in Bulgaria, Greece, Croatia, all planned by each individual country. These generation investments will consequently determine the need to reinforce the horizontal network, particularly to increase the interconnection capacities of the region with the electrical energy system of Italy, in order to penetrate to the Italian and the western European countries’ market. In the long-term, the region expects development projects in building new generation capacities, most significantly in Kosovo, Bosnia and Herzegovina, Romania and Albania. These developments shall encourage investments in new interconnection capacities between the region and Italy. In the mid-term period, integration of renewable energy integration, with a special emphasis in Italy and Greece is also an incentive for investments in the horizontal network. Italy and Greece currently have the most number of integrated wind generator capacities. In the long-term period, many other countries have planned to integrated large wind generator capacities, in the likes of Bulgaria, Romania and Albania. In terms of expanding the synchronized area to the east, this requires investments in the Bulgarian and Greek networks, in order to enable the integration of Turkey, Moldavia and Ukraine. These projects can also increase the power flows from East to West as shown in Figure 4-2. 4.2 Mid-term projects in the South-East Europe network

Mid-term projects in the region are encouraged by the demand and needs as presented in the introductory paragraph of this Chapter. Most mid-term projects are characterized with a high implementation probability as per the time presented. In this period, a significant number of interconnection lines in the parts of the network with dominant power flows are in the implementation phase. 400kV interconnection line between Slovenia and Hungary (through a new double line circuit Cirkovce (Slovenia)- Pince/Hevic (Hungary), and the other circuit will be used for the new interconnector between Slovenia and Croatia) reinforcing the network in the northern boundaries of the region. Interconnection line 400kV Ernestinovo (Croatia) – Pesc (Hungary) is expected to enter into operation by end 2010. This line is expected to increase the region’s importing capacities from the Central-Easter Europe and Ukraine. Interconnection line Shtip (Macedonia) – Nish (Serbia) is expected to be completed in mid 2011 and 2013. Interconnection line 400kV Tirana 2 (Albania) – Podgorica (Montenegro) is expected to enter into operation by end 2010. This line is very important as it creates the new corridor to Greece and Italy. The line with be interconnected with the new interconnection line Kosovo B (Kosovo) – Tirana 2 (Albania),whereas to circuits of the two lines from V. i Dejes to Tirana 2 will joined in double pillars. These two lines will enable the evacuation of planned electricity surpluses in



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Bosnia, Kosovo, Bulgaria, and Romania to Italy and the Western Europe. On this occasion, these two lines will be an incentive for regional energy market integration. Benefits will be significant, particularly with the energy market integration of Kosovo and Albania, and the other part of the region. South-East Europe market integration with the rest of the Western Europe will be supported with the the new underwater connection (400kV DC cable) between Italy and Montenegro. This project is in the designing and adoption phase, and is expected to enter into operation in the period 2014-2015. There is also another similar project which, through an underwater 400kV DC cable will connect Italy with Albania. The project is in the designing and approval phase and is expected to enter into operation in the period 2013-2014. A large number of projects is planned to be implemented in the internal network of Greece with the aim of integrating large wind generator capacities. With the aim of expanding the synchronized area towards Turkey, a series of projects are planned to be completed in the mid-term. These projects include the expansion of the 400kV network in Northern Greece and essential reinforcements of the southern part of the 400kV network 400kV of the Bulgarian system. 4.3 Long-term projects in the South-East European network

A considerable number of long-term projects for the reinforcement of interconnection and internal network capacities in the South-East Europe have been planned. Interconnection line 400kV Pancevo (Serbia) – Resita (Romania), is expected to have an impact in increasing the transferring capacity in the direction East-West. Two addition DC lines between Italy-Greece and Italy-Croatia are amongst the long-term projects which are still in the inception phase (after 2020). There is also another draft-project for a new interconnection line between Udine (Italy) and Okroglo (Slovenia) with the aim of increasing interconnection capacities between the two countries. With a view to create an additional corridor to evacuate planned generation surpluses of Bosnia and Herzegovina and Montenegro to Italy (through the underwater DC cable) a 400kV interconnection line Visegrad (B&H)- Plevlja (Montenegro) has been planned. Two important interconnection line projects encompassing three regional countries – Kosovo, Albania and Macedonia – are in the inception phase. The second 400kV line Kosovo B (Kosovo) – Skopje 5 (Macedonia) and 400kV line Bitola (Macedonia) – Elbasan (Albania) are long-term projects which will create an additional corridor for the Italian and European market. Projects will be encouraged by the generation developments in Kosovo, Bulgaria, and Romania, and the electricity demands in the region and beyond. Figure 4-3 shows the electrical map of ENTSO/E, the part of the South-East Europe network, indicating the current horizontal network and planned interconnections in the mid-term and long-term period.



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Figure 4-1 Map of mid-term investments in the South-East Europe transmission network4

4 Source of information: ENTSO/E 10 Year Network Development Plan.



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Figure 4-2 Map of long-term investments in the transmission network of the South-East Europe



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Figure 4-3 Map of ENTSO/E - part of the South-East Europe network with mid-term and long-term projects in transmission



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Figure 4-4 Long-term vision of the Kosovo transmission network development – from the FISHNER study



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Bibliography

[1] Energy Strategy 2009-2018 [2] Long-term Electricity Balance 2011-2020_KOSTT [3] Transmission Development Plan (2010-2019)_KOSTT [4] “Studies to support the development of new generation capacities and related transmission-Kosovo”, EAR [5] Annual Electricity Balance 2011_KOSTT [6] UCTE (ENTSO/E) OPERATIONAL HANDBOOK [7] ENTSO/E SYSTEM ADEQUACY FORECAST 2010 – 2025 [8] ENTSO/E TEN- YEAR NETWORK DEVELOPMENT PLAN [9] List of transmission capacities and interconnection lines 2009-2015_KOSTT [10] Generation Adequacy Plan 2011-2020_KOSTT



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ANNEX A – Technical data on South-East Europe region interconnection lines Table A-1 List of current interconnection lines 2010

Conductors Length (km) Interconnection lines Countries

interconnected

Voltage level(kV)

Type Dim. No/ phases

Sn (MVA)

I I Total

Varna -Isaccea BG -RO 750 ACSR 300 5 2390 150 85 235 Isaccea -Pivdenoukrainska RO -UA 750 ACSR 400 5 5360 5 395 400 God -Levice HU -SK 400 ACSR 500/350 2/3 1440 88 36 124 Gyor -Gabcikovo HU -SK 400 ACSR 500/450 2/3 1440 29 15 44 Zemlak -Kardia AL -GR 400 ACSR 500 2 1309 21 80 101 Mostar4 -Konjsko BA -HR 400 ACSR 490 2 1318 41 69 110 Ugljevik -Ernestinovo BA -HR 400 ACSR 490 2 1318 39 53 92 Blagoevgrad -Thessaloniki BG -GR 400 ACSR 500 2 1309 72 102 174 Dobrudja -Isaccea BG -RO 400 ACSR 400 3 1715 81 150 231 Maritsa Istok -Hamitabat BG -TR 400 ACSR 400 3 1715 59 90 149 Isaccea -Vulcanesti RO -MOLD 400 ACSR 400 3 1715 5 54 59 Kozloduy -Tantareni (double) BG -RO 400 ACSR 500/300 2/3 2490 14 102 116 Sofia West -Nis BG -RS 400 ACSR 500 2 1330 37 86 123 Maritsa Istok -Babaeski BG -TR 400 ACSR 500 2 1309 50 77 127 Zerjavinec -Heviz (double) HR -HU 400 ACSR 490 2 1318 99 69 168 Chervena Mogila - Stip BG- MK 400 ACSR 490 2 1330 80 70 150Dubrovo -Thessaloniki MK -GR 400 ACSR 490 2 1330 55 60 115 Nish – Kosovo B SR- KS 400 ACSR 490 2 1317 84 40 124Skopje 5 - Kosovo B MK -KS 400 ACSR 490 2 1317 22.5 68 90.5Peja 3 - Ribarevina KS-MN 400 ASCR 490 2 1317 28.7 52.1 80.84Arachtos -Galatina HVDC GR -IT 400 HVDC 1250 / 500 / / 313 Gyor -Wien Sud (double) HU -AT 400 ACSR 500 2 2563 59 63 122 Podgorica -Trebinje ME -BA 400 ACSR 490 2 1330 60 21 81 Arad -Sandorfalva RO -HU 400 ACSR 450/500 2 1212 5 52 57 Portile De Fier -Djerdap RS -RO 400 ACSR 967 2 1330 1 2 3 Rosiori -Mukacevo RO -UA 400 ACSR 450 2 1212 39 36 75 Ernestinovo -S. Mitrovica HR -RS 400 ACSR 490 2 1330 52 41 93 Maribor -Keinachtal (double) SI -AT 400 ACSR 490 2 1330 26 37 63 Melina -Divaca HR -SI 400 ACSR 490 2 1318 26 41 67 Tumbri -Krsko (double) HR -SI 400 ACSR 490 2 1318 32 16 48 Divaca -Redipuglia SI -IT 400 ACSR 490 2 1330 39 10 49 Mukachevo -Sajoszeged UA -HU 400 ACSR 400 2 1386 8 142 150 Bitola -Florina MK -GR 400 ACSR 490 2 1312 20 13 33 Ribarevine -Kosovo B KS -ME 400 ACSR 490 2 2000 50 73 123 Ugljevik -S. Mitrovica BA -RS 400 ACSR 490 2 1920 46 34 80 Vau Dejes -Podgorica AL -ME 220 ACSR 360 1 301 47 21 68 Fierzë -Prizren AL -KS 220 ACSR 360 1 300 26 45 71 Krusevc- Podujeva RS - KS 220 ACSR 360 1 300 70.5 14.5 85Pljevlja -Bajina Basta ME -RS 220 ACSR 360 1 720 15 82 97 Pljevlja -Pozega ME -RS 220 ACSR 360 1 1000 14 78 92 Gradacac -Djakovo BA -HR 220 ACSR 360 1 300 19 27 46 Prijedor -Mraclin BA -HR 220 ACSR 360 1 300 66 66 Mostar4 -Zakucac BA -HR 220 ACSR 360 1 300 49 50 99 Prijedor2 -Medjuric BA -HR 220 ACSR 360 1 300 34 32 66 TE Tuzla -Djakovo BA -HR 220 ACSR 360 1 300 65 27 92 Trebinje -HE Dubrovnik (Plat) BA -HR 220 ACSR 240 2 491 7 5 12 Trebinje -HE Dubrovnik (Plat) BA -HR 220 ACSR 240 2 491 7 5 12 Trebinje -HE Perucica BA -ME 220 ACSR 360 1 301 20 42 62 Sarajevo20 -Piva BA -ME 220 ACSR 490 2/1 366 61 23 84 Visegrad -Pozega BA -RS 220 ACSR 360 1 301 18 51 69 Zerjavinec -Cirkovce HR -SI 220 ACSR 360 1 300 19 51 70 Gyor -Wien Sud HU -AT 220 ACSR 360 1 305 59 63 122 Gyor -Neusiedl HU -AT 220 ACSR 360 1 305 55 27 82 Podlog -Obersielach SI -AT 220 ACSR 490 1 366 46 20 66 Pehlin -Divaca HR -SI 220 ACSR 490 1 350 6 47 53 Divaca -Padricano SI -IT 220 ACSR 490 1 366 10 2 12 Mukachevo -Kisvarda UA -HU 220 ACSR 400 1 308 54 10 64 Mukachevo -Tiszalok UA -HU 220 ACSR 400 1 308 97 35 132



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Table -A-2 Minimal forested load of the Electricity systems of South-East European countries

2012 2015 2020 Country Winter Summer Winter Summer Winter Summer MW MW MW MW MW MW

Albania (Al) 1445 1123 1614 1380 2645 2246 Kosovo (KS) 1190 672 1283 686 1410 987 Bosnia (BA) 2245 1352 2410 1451 2855 1719 Bulgaria (BG) 6810 5651 7025 5752 7340 6176 Croatia (HR) 3290 2010 3838 2119 4448 2354 Greece (GR) 11102 12134 12705 13849 14027 15290 Macedonia (MK) 1485 900 1607 997 1946 1171 Montenegro (MG) 725 610 737 637 787 679 Rumania (RO) 8352 5133 9.056 5675 11418 7017 Serbia (SR) 6120 4080 6393 4242 6745 4472

Table A-3 – List of interconnection lines considered to be in operation by 2025

Conductors Capacity Interconnection line

Countries interconnec

ted

kV

Type (mm2)(MVA)

L km

In operation

Kashar - Podgorica AL - MN 400 ACSR 2x490 1330 146 2010-2011Maritsa Istok – N.Santa BG - GR 400 ACSR 3x400 1715 130 2012-2015Nis-Leskovc-Vranje-Stip SR - MK 400 ACSR 2x490 1330 95 2011-2013Kashar – Kosovo B AL - KS 400 ACSR 2x490 1317 239 2012 Babica - Brindizi Al - IT 400 DC 1250 500 290 2013-2014Pancevo -Resita SR- RO 400 ACSR 2x490 2x1330 150 2015 Bekescaba - Nadab (Oradea) HU - RO 400 ACSR 2x490 1211 54 2010-2013N.Santa - Babaeski GR - TR 400 ACSR 3x400 1500 180 2013-2015Pécs - Ernestinovo (double) HU - HR 400 ACSR 2x490 2x1330 86 2010 Tivat - Vilanova HR - IT 500 DC 2x1250 1000MW 375 2013-2014Tumbri - Banja Luka HR - BA 400 ACSR 2x490 1330 200 2015-2020Okroglo – Udine (double) SI - IT 400 ACSR 2x400 2x1163 120 2020-2025Kosovo B – Skopje 5 KS - MK 400 ACSR 2x490 1317 83 2020-2025Babica - Brindizi Al - IT 400 DC 1250 500MW 290 2013-2014Visegrad - Plevlja MN - BA 400 ACSR 2x490 1330 70 2015-2020Konjsko - Candia HR - IT 500 DC 2x1250 1000MW 280 2020-2025 Cirkovce - Héviz SLO- HU 400 ACSR 2x490 1330 162 2015 Žerjavinec - Cirkovce HR - SLO 400 ACSR 2x490 1330 140 2015 Aetos - Galantina GR - IT 400 DC 1250 500MW 316 2020-2025Bitola 2 - Elbasan AL - MK 400 ACSR 2x490 1330 125 2020-2025



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Table A-4 Planned internal lines by 2016 in the transmission network of the South-East Europe

Conductors L Capacity In

operationInternal lines Country

(kV) Type (mm2) km (MVA)

Tirana - Elbasan AL 400 ACSR 2x490 45 1330 2010 Plovdiv - Zlatica BG 400 ACSR 3x490 75 1330 2010 Maritas East 1 - Plovdiv BG 400 ACSR 3x490 93 1330 2013 Porto de Fier - Resita RO 400 ACSR 2x490 121 1330 2015 TPP Plomin - Melina HR 400 ACSR 2x2x490 35 2x1330 2016 Tivat - Plevlja MN 400 ACSR 2x490 42 1330 2016 Petras -Megalapolis GR 400 ACSR 2x3x490 110 2x1178 2011 Korintos -Megalapolis GR 400 ACSR 3x490 110 1178 2012 Korintos –Komyoy. GR 400 ACSR 2x3x490 87 1178 2012 Lagada - Fillippoi GR 400 ACSR 3x490 110 1178 2011

Table A-5 – Planned Substations 2010-2020

Title of Project CountryIn operation

SS FERIZAJ 2 400/110 kV KS 2011 SS TIVAT 400/110 kV MN 2014-2015 SS TIRANA 2 400/110 kV AL 2010 SS SANTA 400/110kV GR 2012 SS SAJOSZOGED 400/120kV HU 2013 SS OROSZIANY 400/120kV HU 2017 SS DEPRECEN 400/120kV HU 2013 SS KONJSKO 150MVAr reactor HR 2013 SS MAJAK 400/110 BG 2020 SS KRUSHARI 400/110 BG 2020

Drafted by Controlled by ISO 9001

Approved by

Full name Gazmend Kabashi Xhavit Sadiku Sabri Musiqi

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Date

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