ACME Solar signs PPA for 300 MW/1200 MWh assured peak supply SECI FDRE project at INR 6/Unit

Leading Through Innovation October 19, 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 Sub: Press Release Dear Sir/Madam, Please find enclosed a Press Release titled “ACME Solar’s signs PPA for 300 MW / 1,200 MWh assured peak supply SECI FDRE Project at INR 6/unit”. You are requested to take the same on your record. Thanking you, for ACME Solar Holdings Limited Rajesh Sodhi Company Secretary and Compliance Officer Encls: As stated Note: This is voluntary submission and not to be considered as an intimation under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements), Regulations, 2015. 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 ACME Solar’s signs PPA for 300 MW / 1,200 MWh assured peak supply SECI FDRE Project at INR 6/unit GURUGRAM, OCTOBER 19, 2026: ACME Solar Holdings Limited (ACME Solar) through its subsidiary, ACME Greentech Twenty Pvt Ltd, has signed a Power Procurement Agreement (PPA) with Solar Energy Corporation of India Limited (SECI) for 300 MW / 1,200 MWh assured peak supply under SECI’s FDRE-IX tranche at a tariff of INR 6 per unit, with effective date of October 06, 2026. This FDRE project supports the growing need for reliable, dispatchable clean power during evening and night-time peak demand, helping strengthen the grid stability as renewable energy’s share of India’s power mix increases. Following this PPA, the under construction PPA signed contracted portfolio stands at 4,310 MW out of total under construction contracted capacity of 5,380 MW. Through this FDRE project, ACME Solar will supply 4 MWh per MW of contracted capacity for any four hours daily during the non-Solar hours, while maintaining a minimum availability of 90% on monthly basis. The project would integrate a combination of Solar and Battery Energy Storage System (BESS) technologies to meet the contracted obligations and would utilize the night-time connectivity already available with the company. About ACME Solar: ACME Solar Holdings Limited is a leading integrated renewable energy player with a diversified contracted portfolio of 8,370 MW spanning Solar, BESS, FDRE, Hybrid and Wind solutions and an operational capacity of ~3,123 MW and 4.96 GWh of BESS capacity. With an in-house EPC and O&M division, the company does end-to-end development and O&M of the plants, thereby delivering projects in a time & cost-effective manner while ensuring best in class operating performance evident in its industry leading CUF and operating margins. For Further Details Please Contact ACME Group Corporate Communications Frederick Castro Rimjim Bora Mob: +91 9920665176 Mob: +91 98732 10182 Email: frederick.castro@acme.in Email: rimjim.bora@acme.in