NEW DELHI, October 31, 2026: The ACME Solar battery storage project at Neemri village in Chittorgarh district, Rajasthan, has received an additional 88.02 MW of power capacity and 366.969 MWh of storage capacity. The company said the component was commissioned on October 30 and is scheduled to begin commercial operation on November 1, 2026. The company said the component was commissioned on October 30 and that its commercial operation date is November 1, 2026.
The update was disclosed in a Regulation 30 filing dated October 31 submitted to BSE Limited and the National Stock Exchange of India. The filing, signed by ACME Solar Company Secretary and Compliance Officer Rajesh Sodhi, identifies ACME Sigma Urja Private Limited, a wholly owned subsidiary, as the project company. The document is available in a reproduction of the exchange filing.
The newly commissioned component forms part of a firm and dispatchable renewable energy (FDRE) project with a stated total capacity of 250 MW and 1,069 MWh. Following this addition, ACME Sigma Urja’s cumulative commissioned battery storage capacity for the project reached 159.660 MW and 664.261 MWh, according to the company filing.
The Neemri project is being developed in phases. In an earlier exchange filing dated October 23, ACME Solar said its subsidiary had commissioned a further 17.91 MW/74.323 MWh component, taking the cumulative commissioned capacity at that point to 71.640 MW/297.292 MWh. The October 31 disclosure records the subsequent addition of 88.02 MW/366.969 MWh.
The figures show that the latest announcement concerns a part of the larger project, not the commissioning of the full 250 MW/1,069 MWh capacity. Based on the totals stated by the company, the remaining capacity is approximately 90.34 MW and 404.739 MWh, subject to further commissioning updates.
The distinction between commissioning and commercial operation is also important. ACME Solar said the component was commissioned on October 30, but specified November 1 as its commercial operation date. The two dates should not be treated as interchangeable when assessing when the capacity becomes commercially operational.
Business Upturn reported the filing at 1:40 p.m. IST on October 31, identifying the subsidiary, location, capacity figures and scheduled commercial operation date. The report is consistent with the reproduced exchange document.
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Battery energy storage systems can absorb electricity when it is available and discharge it later, subject to their power rating, stored energy, efficiency and operating arrangements. In projects combining renewable generation with storage, batteries can help shift some electricity from periods of high generation to periods when demand remains strong but solar output has declined.
The Central Electricity Authority (CEA), in its February 18, 2025 advisory on co-locating energy storage with solar projects, said storage systems would be important for grid stability, reliability and more efficient use of variable renewable energy. The advisory cited the National Electricity Plan’s estimate that India would require 73.93 gigawatts of storage power capacity and 411.4 GWh of storage energy by 2031-32, including 47.24 GW/236.22 GWh of battery storage.
Those figures are planning requirements, not a statement of India’s currently installed battery capacity. They illustrate the scale of storage that planners considered necessary to support the country’s projected solar and wind expansion. The CEA also advised renewable-energy implementing agencies and state utilities to incorporate a minimum two-hour co-located storage system equivalent to 10 per cent of installed solar project capacity in future solar tenders.
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Storage is one part of a wider grid-balancing requirement. Transmission capacity, forecasting, dispatch rules, battery efficiency, equipment safety and the availability of other flexible generation sources also affect how reliably stored electricity can support the system. A commissioned battery component does not, by itself, establish how often it will be dispatched or how much renewable electricity it will ultimately deliver.
The next stated milestone for the new Neemri component is its commercial operation date of November 1. Further updates will be needed to establish when the remaining capacity in the 250 MW/1,069 MWh project is commissioned and how the complete facility performs under its contractual and grid-dispatch arrangements.
The latest addition also comes as Indian renewable-energy developers expand storage alongside solar, wind and FDRE projects. ACME Solar’s commissioning disclosures are one example of how battery capacity is being added in stages rather than becoming available as a single completed block.
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The practical test will be whether the storage assets can operate reliably and deliver electricity when the grid needs it. The company’s filing confirms the latest capacity milestone and the planned commercial operation date; it does not provide a project-level dispatch schedule, realised efficiency figures or details of actual electricity supplied from the new component.