Reliance Subsidiary Wins SECI’s 930 MW Solar, 1860 MWh BESS Project

Reliance Subsidiary Wins SECI's 930 MW Solar, 1860 MWh BESS Project

Reliance Power Limited (Reliance Power) subsidiary, Reliance NU Suntech Private Limited  (Reliance NU Suntech), has won a 930 MW solar contract with a battery energy storage system project (BESS). Reliance secured this project from Solar Energy Corporation of India (SECI) in an e-reverse auction held on 9th December 2024. 

Reliance NU Suntech’s successful bid for SECI’s Tranche XVII auction won the project at a tariff of ₹3.53  ($0.0416)/kWh. It would install a minimum storage capacity of 465 MW/1,860 MWh charged by solar power, the largest allotment among the winning bidders.  The Letter of Award (LoA) is awaited from SECI. The company secured the largest individual allocation out of the five companies vying for a total quoted capacity of 2,000 MW of Inter-State Transmission System (ISTS) connected solar power projects with 1,000 MW/4,000 MWh energy storage systems.  

The project will guarantee a peak power supply of four hours daily (or a four-hour discharge duration). SECI would enter into a power purchase agreement (PPA) with Reliance NU Suntech for 25  years to procure solar power to sell it to multiple discoms in India. Reliance NU Suntech will develop the project on a build-own-operate (BOO) basis and will have to connect to the interstate transmission system in compliance with Central Electricity Regulatory  Commission regulations for interconnection with the ISTS or InSTS. 

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The move comes even as SECI reversed its recent ban on the firm from bidding for projects for three years on an issue involving a fake bank guarantee. Reliance got a stay on the order, following which SECI lifted its order banning the firm.