Reliance NU Suntech, a subsidiary of Reliance Power Ltd, has signed a 25-year power purchase agreement with the Solar Energy Corp. of India to develop Asia’s largest single-location integrated solar and battery energy storage system project, the company said on Friday.
According to a company statement, the project entails a capital investment of up to ₹10,000 crore ($1.2 billion), representing a significant strategic commitment to operational scalability and long-term value creation.
The agreement covers the supply of 930 megawatts of solar power combined with a 465 MW/1,860 MW-hour BESS, at a competitive fixed tariff of ₹3.53 per kWh.
The project will install over 1,700 MW-peak of solar generation capacity, a significant step toward India’s renewable energy ambitions.
Top Bidder in SECI Auction
Reliance NU Suntech secured the allocation in SECI’s Tranche XVII auction in December 2024, emerging as the top bidder in a competitive process that drew five major energy companies vying for 2,000 MW of solar and 1,000 MW/4,000 MWh of storage capacity under the Inter-State Transmission System.
The company has already submitted a performance bank guarantee and completed all required formalities, including the issuance of the letter of award and the PPA signing, within five months — a pace it said demonstrates its operational efficiency and commitment to India’s energy transition.
“This project reinforces Reliance Power’s leadership in clean energy and strengthens our role in delivering low-cost, sustainable energy solutions,” the company said in a statement.
Reliance Power, part of the Reliance Group, operates a power generation portfolio of 5,305 MW, including the 3,960 MW Sasan Power Ltd. plant, one of the world’s largest integrated coal-based facilities.
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