Reliance NU Suntech Private Limited, a subsidiary of Reliance Power Limited, has signed a 25-year Power Purchase Agreement (PPA) with the Solar Energy Corporation of India (SECI). The agreement covers the supply of 930 MW of solar power integrated with a 465 MW/1,860 MWh Battery Energy Storage System (BESS) at a fixed tariff of ₹3.53 per kWh.
This PPA follows Reliance NU Suntech’s success in SECI’s Tranche XVII auction in December 2024, where it secured the largest award for solar and storage capacity. The auction involved bids for 2,000 MW of Inter-State Transmission System (ISTS)-connected solar projects and 1,000 MW/4,000 MWh of BESS capacity.
The project will involve deploying more than 1,700 MWp of installed solar generation capacity. It will be developed at a single location and is expected to be commissioned within 24 months. The estimated investment for the project is up to ₹10,000 crore.
Reliance NU Suntech has submitted a Performance Bank Guarantee (PBG) of ₹378 crore to SECI as part of the contract requirements. The entire bidding process, from reverse auction to the signing of the PPA, was completed in under five months.
This development contributes to India’s renewable energy goals and adds significant capacity to the national grid through solar and battery storage integration.
