FLOATING SOLAR POWER PLANT

BY

ABHAY OCEAN INDIA PVT LTD

PREPARED BY PROF. V. BHOSALE

Why Floating PV?

Ever increasing power demand & depletion of fossil fuels. Leads to shift our focus to renewable energy sources. Wind & Hydro RE sources are area specific. PV can be installed at any place. Major issue of Solar PV is requirement of land. But floating solar can be installed on any water bodies. Floating solar PV results in decrease in cost and will increase amount of generation due to cooling effect of water.

CONCEPT

Floating Solar Power is innovative concept in energy technology to meet the needs of our time.

Fig: PV floating plant outline

Components of Floating PV

Floating System: A floating body (Structure + Floater) that allows installation of PV module.

Mooring System: This allows to adjust water level fluctuations while maintaining its position.

PV System: PV Generation equipment, similar to electric junction boxes, that are installed on top of floating system.

Underwater Cable: To transfer generated power to substation.

K-water 100 kW

K- water installed 100 kW floating PV on the water surface of Hapcheon water reservoir in 2011.

K- water 500 k W

After successful installation of 100 kW system K-water installed 500 kW PV system on another location at same dam.

Performance Analysis

100 kW PV at Hapcheon is forming 33 degree tilt & its installed capacity is 99.36 kW, composed of 414 240W modules

Performance Analysis

Data is collected from Jan 2012 to Dec 2012.Monthly average generated quantity 10,852 kWh

Fig : Performance Analysis graph

Performance Analysis

500 kW PV system forming 33 degree tilt, installed capacity 496.8 kW composed of 2070 240 modules. Monthly generated Avg. quantity form Oct. 2012 to Mar. 2013 was 55208 kWh.

Comparison Floating PV & Overland PV

Floating solar panels( Blue) having 10.3 % more efficient than overland system. Fig.: Comparison Graph

Stability of floating sturcture

Graph Floating PV stability against winds.

STATE WISE INSTALLED CAPACITY

Ever increasing power demand & depletion of fossil fuels. Leads to shift our focus to renewable energy sources. Wind & Hydro RE sources are area specific. PV can be installed at any place. Major issue of Solar PV is requirement of land. But floating solar can be installed on any water bodies. Floating solar PV results in decrease in cost and will increase amount of generation due to cooling effect of water.

GOVT. OF INDIA INITIATIVESPolicy & Regulatory frameworkELECTRICITY ACT 2003 : Most transformational &

dynamic act till date includes laid guidelines for Renewable energy.

SECTION 61(h): While specifying terms and condition for tariff determination the commission shall consider the promotion of generation from renewable energy sources.

SECTION 86(1) (e): State commission shall promote generation of Electricity from renewable energy sources. It shall be done by providing grid connectivity & sale of Electricity to anyone.

NATIONAL ELECTRICITY POLICY 2005 :

SECTION 6.4 : This section states that in present stage non conventional and conventional energy cannot compete at same similar tariff and hence power shall be procured from non-conventional sources at preferential tariff as determined by appropriate commission.

GOVT. OF INDIA INITIATIVESPolicy & Regulatory framework

Amendment of National tariff policy for Solar specific RPO’s. Solar specific RPO’s – 025 % in 2013 to 3 % by 2022. REC mechanism . Encourage state specific solar policies. State wise RPO orders by Regulators. Exemption for Environmental clearance for Solar Power Projects.

Jawaharlal Nehru National Solar Mission (JNNSM)

Launched by Govt. of India in January 2011.One of the major initiative at global level in promotion of Solar energy technologies.Mission aims to achieve grid tariff parity by 2022.Large scale utilization, rapid diffusion and deployment at a scale which leads to cost reduction.R&D pilot projects and Technology Demonstration.

JNNSM Batch I Bidding Result SummaryAverage tariff for selected projects was 1216 paisa/kWh which was 32% lower than CERC approved benchmark tariff 1791 paisa/kWh.

In a Batch I a total of 204 MW capacity grid connected solar power projects have been commissioned.

Maharashtra Model Solar Policy

Maharashtra has reasonably high solar insolation 4-5 kWh/sq. meter with 280-300 clear sunny days.Eastern Maharashtra considered to be most suitable region for solar power projects

OBJECTIVE

To generate 1000 MW of Solar energy by 2016.To achieve grid parity by 2016 . Promotion of R&D and facilitation of technology transfer.Promotion of local manufacturing facilities.

Maharashtra Model Solar Policy

Financial outlay of Subsidy Scheme

Maharashtra Model Solar PolicySubsidy under each project will be distributed into three installments by state government.

Maharashtra Model Solar Policy

Criteria to avail benefits under the policy

Project developer should not procure any incentives/ subsidy from central government.PPA’s should be singed with MAHADISCOM. Capacity Utilization Factor of Solar PV should be more than 19% for initial two years of installation. An audited detailed report and energy generation report should be submitted to MEDA.

Financial Modeling of Solar PV Capital Cost: Normative Capital cost INR 700 Lakhs/MW for 2014-15 as per MERC.

Annual Energy Yield: There are number of factors(e.g. Air pollution, Shading, Soiling, Ambient temperature, Downtime etc.) Which affect annual yield of Solar PV.

For 1 MWp Plant annual yield would averaged around 1.4 million kWh units. Yield prediction are assumed for next 25 years.

Certified Emission Reductions: As India is non Annex 1 party under UN Clean Development Mechanism (CDM) qualifying solar projects could generate Certified Emission Reductions(CERs)

Energy Price : Solar PV Plant under REC mechanism can earn its revenue from selling

grey. In the financial model it is assumed that grey component of energy sold to

State discom at MSEDCL.

Operation and Maintenance cost: One of the major benefit of Solar PV plant is less O & M cost as compared to other renewable energy technologies.

Financing Assumptions: General financial assumptions for a project in India as follows

Financial Structure: Equity 30 % and debt 70 % as assumed in MERC tariff order.

Debt repayment is taken over as 10 years. Interest rate on term loan and work capital is taken as 12.87% and 13.37% respectively.

Floating solar PV Indian Context

Great potential for floating PV. Availability of water bodies and land issues are main accelerators for floating PV solar Panels. Increased efficiency of Floating PV over Land PV installed will attract more investment due to better returns. Availability of trained manpower and Govt. Policies have boosts the confidence of investors.Stable floating PV platforms results in minimum operation & maintenance cost.

Thank You.

For Any Query Please Contact :

CAPT. JAGDISH KHOKHAR

Cell: +91 99 2030 9055E-mail: jk@abhay-ocean.com

www.abhay-ocean.com