ACME Solar Stock Jumps 6% on Rajasthan BESS Commissioning

Introduction

ACME Solar Holdings saw its share price surge by 6.20% to Rs 255.05 following the announcement that its subsidiary, ACME Sun Power, commissioned the second phase of a major battery energy storage system (BESS) in Rajasthan. The newly operational phase adds 33.335 MW / 160.51 MWh of capacity to the grid at its Badi Sid location. This development underscores the company's progress in expanding its energy storage portfolio, a critical component of India's renewable energy infrastructure.

Strong Market Performance

Investors responded positively to the news, pushing ACME Solar's stock to an intra-day high of Rs 262.45. The stock's gain was particularly notable as it occurred in a weak market, with the Sensex trading 1.17% lower on the same day. This robust performance highlights investor confidence in ACME's strategic direction and its ability to execute large-scale energy projects. By 10:12 AM, the share price was trading 7.62% higher at Rs 258.45, reflecting sustained buying interest.

Project Details and Capacity Expansion

The commercial operation date (COD) for this second phase is set for March 14, 2026. With this addition, ACME Sun Power's total commissioned capacity at the Badi Sid site now stands at 66.67 MW / 320.99 MWh. This is a significant step towards the total planned capacity of 300 MW / 1,409.34 MWh for this specific project. The commissioning demonstrates the company's steady execution of its development pipeline.

Strategic Operational Model

The BESS units in Rajasthan are connected to the Inter-State Transmission System (ISTS), allowing for broad energy distribution. Initially, these systems will operate on a short-term merchant basis. This model allows ACME to generate additional revenue by capitalizing on price differentials, charging the batteries during non-peak hours when electricity is cheaper and discharging during peak hours when prices are higher. Eventually, these storage units will be integrated with the company's Firm and Dispatchable Renewable Energy (FDRE) projects under long-term, 25-year Power Purchase Agreements (PPAs), ensuring stable and predictable revenue streams.

Broader Energy Storage Ambitions

This project is part of a much larger strategic push by ACME Solar into the energy storage sector. In a separate filing, the company noted that its various subsidiaries have already commissioned 142.67 MW / 481.49 MWh of BESS capacity in Phase I of other projects. This is part of a planned 585 MW / 2,011.24 MWh capacity under these special purpose vehicles. Across its entire portfolio, ACME Solar is targeting the installation of approximately 17 GWh of BESS capacity, positioning it as a leading player in India's energy storage market.

Recent Commissioning Activities

ACME Solar has been actively commissioning BESS projects throughout early 2026, showcasing rapid progress across different subsidiaries and locations in Rajasthan.

Financial Overview

The company's operational advancements are supported by healthy financial performance. For the third quarter of fiscal year 2026, ACME Solar Holdings reported a 1.5% increase in consolidated net profit to Rs 113.71 crore. This was driven by a significant 42.3% jump in net sales, which reached Rs 496.62 crore compared to the same period in the previous fiscal year. This financial strength provides a solid foundation for its ambitious expansion plans.

Company Profile and Portfolio

ACME Solar Holdings Limited is a fully integrated renewable energy company with a diversified portfolio of 8,071 MW. This includes solar, wind, storage, hybrid, and FDRE projects. The company has an operational contracted capacity of 2,966 MW and 481 MWh of BESS capacity. Its under-construction portfolio includes 5,105 MW of contracted capacity, which features approximately 16.5 GWh of BESS installations. With its in-house EPC and O&M divisions, ACME manages the entire project lifecycle, ensuring timely and cost-effective delivery.

Market Impact and Analysis

The commissioning of these BESS projects is critical for enhancing grid stability in India. As the country adds more intermittent renewable energy sources like solar and wind, energy storage becomes essential for balancing supply and demand. By storing excess power generated during sunny or windy periods and releasing it during peak demand, BESS projects improve grid reliability and optimize power utilization. ACME's strategy to first leverage the merchant market and then secure long-term PPAs provides a balanced approach to revenue generation, combining short-term opportunities with long-term stability.

Conclusion

ACME Solar's recent commissioning of its BESS phase in Rajasthan marks a key achievement in its growth strategy and reinforces its leadership in India's renewable energy sector. The positive market reaction reflects the strategic importance of energy storage in the country's transition to clean energy. As ACME continues to execute its extensive pipeline of BESS projects, it is well-positioned to play a pivotal role in strengthening India's power grid and advancing its renewable energy goals.