ACME Solar Hits 52-Week High After BESS Phase Commissioning

ACME Solar Holdings shares surged 5.6% on Friday to reach an intraday high of 434.70 rupees, marking a new 52-week peak. The rally followed the company’s announcement that it successfully commissioned Phase-II of its Battery Energy Storage System (BESS) component in a project located in Kelan, Rajasthan. This milestone brings the total commissioned capacity for the subsidiary ACME Greentech Seventh Private Limited to 105.95 MW of power and 423.80 MWh of storage. The stock traded at a 4% premium at mid-day, having retracted some early gains, with combined trading volume on NSE and BSE exceeding 3 million shares.

The operational update confirms that the commercial operational date for this new phase is set for September 19, 2026. The company has secured a power purchase agreement with State Joint Venture Company (SJVN) and long-term project financing from the Renewable Energy Development Management Institute (REC). Management indicated that the entire 300 MW / 1200 MWh BESS capacity for this specific project is expected to be commissioned by the third quarter of the current fiscal year. This expansion follows strong financial performance in the first quarter of FY27, where revenues grew by over 63% and EBITDA increased by 56%, achieving an 87% consolidated EBITDA margin.

Capital Expenditure Guidance Raised

Leveraging the strong Q1 results, ACME Solar management has upgraded its full-year capital expenditure guidance to a range of 15,000 to 20,000 crore rupees. The company stated that this increased investment aims to deliver better return economics and provide greater operational flexibility. This capex expansion supports the broader strategy of scaling renewable energy assets, particularly in battery storage, which is critical for grid stability in India’s evolving energy mix. The move signals confidence in the company’s ability to finance and execute large-scale infrastructure projects.

Market Performance and Valuation Context

As of the trading session on September 18, 2026, ACME Solar’s market capitalization stood at 30,296 crore rupees. The stock has delivered returns exceeding 40% over the past year and gained over 80% on a year-to-date basis in 2026. In the last month alone, shares rose by more than 15%, and they were up 6.4% in the preceding five trading sessions. The 52-week low for the stock was recorded at 195.90 rupees on January 27, 2026, highlighting the significant appreciation since early in the year. This trajectory reflects sustained investor interest in the renewable energy sector, with ACME Solar emerging as a key beneficiary of the push toward grid-scale storage solutions.

Strategic Implications for Stakeholders

For investors tracking the company, the commissioning of the BESS phase represents a tangible step in executing the growth strategy outlined in recent filings. The partnership with SJVN and financing from REC mitigate some execution and funding risks associated with large-scale energy projects. The focus on high-margin EBITDA and aggressive capex deployment suggests a business model prioritizing scale and efficiency. As the company moves toward full commissioning of the Rajasthan project, the ability to maintain high operational margins while expanding capacity will be a critical metric to monitor in upcoming quarters. The stock’s recent momentum aligns with broader market trends favoring companies with clear path to revenue generation from renewable assets.