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ACME Solar Commissions 143 MW/481 MWh BESS Project in Rajasthan

ACME Solar Holdings has commissioned 142.67 MW/481.49 MWh of Battery Energy Storage System (BESS) capacity in Rajasthan under Phase-1 of its planned 585 MW/2011.24 MWh BESS projects.

March 13, 2026. By Mrinmoy Dey

ACME Solar Holdings has announced that the company, through its various subsidiaries, has commissioned 142.67 MW/481.49 MWh of Battery Energy Storage System (BESS) in phase-1 out of its total planned BESS capacity of 585 MW/2011.24 MWh under these SPVs.

Overall, the company's current portfolio requires the installation of about 17 GWh of BESS in multiple phases across different states, the company stated.

Located in Rajasthan, these BESS are connected with the existing operational Inter-State Transmission System (ISTS) and will run on a merchant basis on a short-term basis, generating additional revenue stream through price differential between peak and non-peak demand hours. Eventually they will be integrated with respective FDRE projects, which will then continue under the PPA for 25 years, stated ACME Solar.

“These are designed to enhance grid reliability and optimise power utilisation by charging batteries during non-peak demand periods and discharging during peak demand periods. This capability will play a critical role in balancing energy supply and demand while improving the overall grid stability,” it said.

ACME Solar has a diversified portfolio of 8,071 MW spanning solar, wind, storage, FDRE and hybrid solutions and an operational contracted capacity of 2,966 MW and 481 MWh of BESS capacity. It has an under-construction contracted capacity of 5,105 MW, including about 16.5 GWh of BESS installation. The under-construction PPA signed portfolio stands at 3,304 MW, the company stated.

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