ACME Solar Signs BESPA with NHPC for 275 MW/550 MWh Across Two BESS Projects
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.
July 18, 2025. By News Bureau
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 e-reverse auction.
The projects are covered under the Viability Gap Funding (VGF) scheme of the Government of India, wherein Rs 27 lakh per MWh or 30 percent of the total project cost, whichever is lower, is provided as VGF.
Letter of Award (LOA) for these projects were awarded on 8th July, 2025. The quick transition from LOA into signing of the BESPA can be attributed to the prior identification of customer as Andhra Pradesh. As the Standalone BESS installation will be established at the customer site wherein land and evacuation infrastructure will be provided by the customer, it should expedite the execution of these projects.
These projects are one-of-its-kind projects being developed in Andhra Pradesh and are expected to be commissioned within 18 months from signing of the BESPA.
These solutions support the grid stability by absorbing power during off-peak hours and release power during peak demand hour in a day. BESS is expected to improve the grid integration of renewable sources like solar and wind, which are inherently variable in nature.
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. The addition of Standalone BESS helps ACME Solar to leverage on advantages of large scale battery procurement and installation in its portfolio.
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