ACME Solar Signs Battery Energy Storage Purchase Agreements with NHPC for 275 MW/550 MWh

ACME Solar Holdings, through its wholly owned subsidiaries, has signed Battery Energy Storage Purchase Agreements (BESPA) with NHPC for a total contracted capacity of 275 MW/550 MWh across two Standalone Battery Energy Storage System (BESS) projects. These projects were secured at a tariff of INR 2,10,000/MW/month for 50MW/100MWh and INR 2,22,000/MW/month for 225MW/450MWh through an e-reverse auction held on 24th June 2025. The projects are expected to be commissioned within 18 months from signing of the BESPA and will support grid stability by absorbing power during off-peak hours and releasing power during peak demand hours. These projects mark a significant milestone in the Indian energy sector, introducing a pioneering model where capacity charges are payable under the ‘BESS as a service’ framework.