Stockwell Solar, Rama Reflection India, Ceigall India Win PSPCL’s 1,000 MWh BESS Auction
Stockwell Solar, Rama Reflection India and Ceigall India have emerged as winners in Punjab State Power Corporation’s auction for 500 MW/1,000 MWh standalone BESS projects in Punjab.
May 16, 2026. By Mrinmoy Dey
Stockwell Solar, Rama Reflection India and Ceigall India have emerged as winners. Stockwell Solar has emerged as the L1 bidder and has won 150 MW/300 MWh at a tariff of INR 3.35 lakh/MW/month.
Rama Reflection India has won 250 MW/500 MWh at a tariff of INR 3.44 lakh/MW/month.
Ceigall India has secured 100 MW/200 MWh out of the quoted 500 MW/1,000 MWh, at a tariff of INR 3.44 lakh/MW/month, under the bucket-filling method.
The tender for this was floated in January 2026.
PSPCL will enter into a 12-year BESPA with the winning bidders.
The BESS developer must set up a BESS, with the primary objective of making the energy storage facility available to the buying entity/PSPCL for charging/discharging of the BESS, on an 'on demand' basis.
The charging and discharging schedule of the BESS system will be under the scope of PSPCL. The BESS must be charged by drawing power from PSPCL/PSTCL and discharged by injecting power into the PSPCL/PSTCL network.
Land will be provided on a lease/right-to-use basis to the BESSD through a suitable agreement with PSPCL/PSTCL.
The BESSD must make the BESS available for 2 operational cycles per day and must guarantee a minimum system availability of 95 percent on a monthly basis.
The application software of the energy management system (EMS) of the BESS must be developed indigenously within India. The BESSD must ensure that the BESS installed is of requisite quality and complies with best industry practices. The use of refurbished or second-hand battery cells in the project is strictly prohibited.
The noise level of the BESS system must be maintained at less than 80 decibels. Since residential colonies may be developed in the future on the land adjacent to the sites, the BESSD must install adequate sound barriers to minimise noise emanating from the BESS system.
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