JSW Neo Energy and Reliance Power have won the auction for the 1,000 MW/2,000 MWh Battery Energy Storage Systems (BESS) project from SECI in India. JSW Neo Energy secured 500 MW with the lowest tariff of ₹3.810 lakh per MW per month, while Reliance Power won another 500 MW with the second-lowest tariff of ₹3.8199 lakh per MW per month. These tariffs reflect a significant 65% reduction compared to SECI’s first standalone BESS tender, which was priced at ₹10.83 lakh per MW per month.
The current tariffs also represent a 15% discount compared to Gujarat Urja Vikas Nigam Limited’s (GUVNL) Phase 2 rate of ₹4.49 lakh and are just 2% higher than the GUVNL Phase 3 tariff of ₹3.72 lakh. Once operational, this project is expected to be one of the largest standalone battery energy storage systems globally.
Under this Request for Selection (RfS), the chosen BESS Developer will be responsible for setting up the system, including land identification, installation, and securing necessary approvals for interconnection with the interstate transmission system (ISTS). While the technology for the storage system is flexible, it must meet the performance requirements outlined in the RfS and Battery Energy Storage Purchase Agreement (BESPA).
The system can be charged by any energy source, though the BESS Developer is not required to own the energy source. The responsibility for charging and discharging the system falls on the entity buying the capacity under contract with SECI.
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