Reliance NU Suntech, a subsidiary of Reliance Power, has secured an order for India’s largest solar energy and battery energy storage system (BESS) of 930 MW capacity from Solar Energy Corporation of India (SECI).

The company was secured through SECI’s Tranche XVII e-reverse auction held on 09 December, 2024, at a winning tariff of Rs 3.53 per kWh. It is also the largest individual allocation among five companies vying for a total quoted capacity of 2,000 MW ISTS-connected solar power projects and 1,000 MW/4,000 MWh of energy storage systems.

Under the terms, Reliance NU Suntech will also have to install a minimum storage capacity of 465 MW/1,860 MWh charged by solar power.  The project design allows delivering peak power for four hours daily.

SECI will enter into a 25-year power purchase agreement (PPA) with Reliance NU Suntech, wherein the solar power procured will be sold to multiple distribution companies in India. Reliance NU Suntech will develop the project on a build-own-operate basis.