India has set up ambitious targets of meeting 15% of its Energy Needs from Renewable Sources up from around 5.5-6% in 2010.WIth India’s Electricity Capacity expected to rise to 450 GW from around 165 GW,this would imply that around 67.5 GW of Electricity Capacity would be needed up from around 16 GW.This would mean around 5 GW of Capacity addition every year in the next decade which is a very tall order.20 GW could be met by Solar Energy according to the Jawaharlal Nehru Solar Mission (JNNSM).Most of the rest would have to met by Wind Energy.Biomass Energy has high costs and reliability problems which mini hydro potential is only 1 GW.Note this is just the capacity I am talking about,for meeting the electricity generation,capacity additions would have to be greater as Solar Energy and Wind Energy have only 20-30% Load Factor compared to 60-80% for Fossil Fuel Energy Sources.Nuclear Energy can contribute another 20 GW.
Renewable Energy in India is growing at a rapid pace increasing its share of the total capacity from 2% in 2003 to around 10% in 2010.However the share of electricity generation is still quite low at 3% due to the lower capacity load factors of Green Energy Sources compared to Fossil Fuel Sources.The Total Installed Capacity of Renewable Energy in India is around 16 GW with Wind Energy taking the Lion’s share at almost 70% followed by Small Hydro at 15% and Biomass Energy at 12%.Solar Energy in India till now has a capacity of just 6 MW which is estimated to grow to 22 GW by 2022 making Solar Energy one of the Biggest Growth Opportunities in the Field of Indian Energy.

Tamil Nadu is one of India’s most prosperous and industrially advanced states located at its southernmost extreme.The state has shown remarkable progress in the field on Wind Energy utilizing almost 80% of its Wind Power Potential with 40% of India’s total Wind Installations.With the right mix of policies,Tamil Nadu has also become the hub of Wind Energy Manufacturing with Global Heavyweights like Suzlon,Gamesa,Vestas all building plants in the State.A number of new players like Sterling Infotech and Lietner have also started manufacturing Wind Turbines in Tamil Nadu due to favorable networking effects.The state is also generates the 3rd largest amount of biomass energy with around 340 MW installed.Here are the reasons why Tamil Nadu has become the Biggest Renewable Energy State in India.

1) Tax Holidays and Subsidies – The government has given attractive subsidies to attract Wind Power Developers to the state.Rs 3.39 ( 8c/Kwh) is the tariff given to Wind Energy besides another 1c/Kwh received from the Federal Government as Generation Based Incentive (GBI).The projects in the state easily make 25-30% returns on their investment attracting a whole host of private industry developers.The Industry also gets a 10 year tax holiday,custom duty exemptions and accelerated depreciation boosting the returns even further.A 20 year PPA at fixed prices helps in building investor confidence .