Commencement of commercial production/operations

Leading Through Innovation September 17, 2026 To To BSE Limited National Stock Exchange of India Ltd Corporate Relationship Dept., Corporate Relationship Dept., Phiroze Jeejeebhoy Towers, Exchange Plaza, Plot No. C/1, G Block, Dalal Street, Mumbai 400001 Bandra-Kurla Complex, Bandra (East), Mumbai 400 051 Scrip Code: 544283 Symbol: ACMESOLAR Reference: Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 Subject: Update on commissioning of Battery Energy Storage System (BESS) Project Dear Sir/Madam, In continuation to our intimation dated September 14, 2026, we wish to inform that ACME Solar Holdings Limited (“ASHL”), through its wholly owned subsidiary i.e. ACME Greentech Seventh Private Limited, has commissioned Phase-II of the BESS component, comprising 52.32 MW/209.28 MWh out of 300 MW / 1200 MWh (Discharge Capacity) of the FDRE Project located at Village: Kelan, Tehsil: Chhatargarh, District: Bikaner, Rajasthan on September 17, 2026. The Commercial operation date (COD) for the same shall be September 19, 2026. With this, ACME Greentech Seventh Private Limited has achieved a commissioned capacity of 105.95 MW / 423.80 MWh of the BESS component. Power Purchase Agreement (PPA) for this project has been signed with SJVN Limited with long-term project financing from REC. ACME Solar expects to commission the entire BESS capacity for this project by Q3 of the current fiscal. You are requested to take the same on your record. Thanking you, For ACME Solar Holdings Limited Rajesh Sodhi Company Secretary and Compliance Officer ACME Solar Holdings Limited CIN L40106HR2015PLC102129 Corporate Office: 4th, 6th to 8th Floor, Block A1, DLF World Tech Park, DLF IT SEZ Silokhera, Sector 30, Gurugram, Haryana 122001 India Tel: +91-124-4507100 Fax: +91-124-7117001 Regd. Office: Plot No .152, Sector-44, Gurugram 122002, Haryana, India Tel: +91-124-7117000 Fax: +91-124-7117001 Email: cs.acme@acme.in; Website: www.acmesolar.in