ACME Solar Holdings has emerged as the winning bidder for NHPC’s tender for cumulative capacity of 275 MW/550 MWh standalone battery energy storage system (BESS) projects at Kuppam and Ghani in Andhra Pradesh.

The company’s winning bid for Kuppam project was at a tariff of Rs 2,10,000 per MW per month with a capacity of 50 MW / 100 MWh. For Ghani project, it bid successfully with a tariff of Rs 2,22,000 per MW per month with a capacity of 225 MW / 450 MWh. The project requires system availability for two full operational cycles of two hours each daily. As part of the project, ACME Solar will receive viability gap funding (VGF) of Rs 27 lakh per MWh or 30 percent of the total project cost, whichever is lower.

This milestone further diversifies ACME Solar’s portfolio to include maiden standalone BESS projects to its existing portfolio of solar, wind, FDRE and Hybrid renewable energy projects. The auction was part of a tender issued by NHPC in February 2025 to enhance energy storage capacity in the state.