4 Battery Energy Storage System (BESS) Stocks to Add to Your 2026 Watchlist

In recent times, battery energy storage systems (BESS) have seen huge regulatory support.

In the union budget, the Finance minister Nirmala Sitharaman announced funding support and announced BESS will be supported with viability gap funding.

BESS provides a clean, affordable, and sustainable alternative to traditional power generation. With battery energy storage systems (BESS), we can store renewable energy and release it when needed.

India's installed renewable capacity now stands over 220 GW. The government has its sights set on 500 GW by 2030.

But the challenge is that renewable systems don't follow our schedule. The sun doesn't shine at night and the wind doesn't blow on demand.

To turn inconsistent renewable energy resource into a reliable source of power, we need a way to store the energy they produce.

The solution is BESS. Without BESS, green energy's rise would be just reduced to a concept.

So, here are 4 battery energy storage stocks to add to your watchlist for 2026.

#1 ACME Solar

First on the list is ACME Solar.

ACME Solar is one of India's largest renewable IPPs, operating across solar, hybrid, wind, and battery-based firm and dispatchable renewable energy (FDRE).

What sets ACME apart is its strong in-house EPC and O&M capabilities, large central government-linked PPA book and early bets on battery energy storage systems (BESS).

ACME has secured battery capacity commitments of 3.6 GWh. This makes it one of the early movers in BESS-backed projects.

The company initially secured its first standalone BESS project worth 550 MWh contracted with NHPC. It also placed orders for 3.1 GWh of BESS with suppliers Narada and Trina Energy.

In FY25, the operational capacity more than doubled to 2,705 MW, due to 1,200 MW of new commissioning. Power generation rose 55% YoY, with capacity utilisation improving to 25.6%.

The company's revenue grew 32% YoY. The EBITDA was up 43% YoY while the EBITDA margin remained at very high levels of 89%.

The management prefers full imported battery packs over local assembly to ensure reliability, warranty, and lender comfort.

Looking ahead, the target is to reach 10 GW operational capacity by 2030, with Rs 18 bn in annual EBITDA. ACME is also developing merchant solar assets to monetise current high prices and plug into PPAs later.

#2 Advait Infratech

Second on the list is Advait Infratech.

The company offers a wide range of products including stringing tools, Aluminium Clad Steel (ACS) wires, Overhead Ground Wires (OPGW), insulators, conductors, transmission line towers, and Emergency Restoration Systems (ERS).

Advait provides turnkey projects in power transmission and telecommunications, delivering end-to-end manufacturing, supply, and installation solutions.

Since 2023, Advait has diversified into renewable energy, focusing on green hydrogen and related technologies.

Although Advait is a company that primarily operates in telecom and power transmission infrastructure, it has quietly announced plans to develop 1 GW worth of battery energy storage projects over the next five years.

The company has even been reporting good numbers of late. Revenues have grown at a compounded annual growth rate (CAGR) of nearly 50% over the last 5 years. Net profits too have kept pace with a CAGR of 54% over this period.

The company has secured substantial contracts in power transmission and renewable energy EPC projects, including orders from Power Grid Corporation of India and KPI Green Energy.

At present, it has an unexecuted order book in excess of Rs 8 bn. This gives a revenue visibility for the next few years. The company recently also won the GUNVL Phase IV Standalone Battery Energy Storage System Auction with a capacity of 50 MW/100 MWh.

In addition, it has secured significant capacities under the Solar Energy Corporation of India (SECI) Production Linked Incentive (PLI) scheme.

In short, Advait Energy is evolving into key player in India's new energy landscape by developing capabilities in green hydrogen production, electrolyser manufacturing, energy storage, and also establishing partnerships on innovative R&D projects.

#3 Bondada Engineering

Next up we have Bondada Engineering.

The company provides engineering, procurement, and construction (EPC) services and operations and maintenance (O&M) services to companies operating in the telecom and solar energy industry.

Under the EPC segment (which contributes 70% to the revenue), the company engages in design and EPC activities for the telecom and solar sectors. It has established partnerships with major telecom players like Reliance Jio, Airtel, Indus, and BSNL.

The company has successfully installed over 12,500 telecom towers and laid a 4,300 km OFC (optical fiber cable) network. It has installed solar power plants with a cumulative capacity of more than 240 MW as of FY25.

Although a small but nimble player, Bondada came into the BESS space when it emerged as the lowest bidder for a BESS project for Telangana GENCO, worth Rs 2.4 bn. It's eyeing a pipeline of projects totalling Rs 10 bn.

Coming to financials, Bondada Engineering's revenue has grown at a compounded annual growth rate (CAGR) of 41% over the last three years while net profit has grown at 75%.

This has translated into good return ratios for the company. The company's average return on equity (RoE) stands at 29.6%. The debt to equity is 0.5.

In FY25, its revenue almost doubled to Rs 15.7 bn while profit doubled to Rs 1.2 bn compared to Rs 450 m in FY24.

Looking ahead, its strong order book position is expected to add to revenues, with a few more large ticket orders in the pipeline and bidding stages.

#4 Tata Power

Last on the list is an obvious name.

The Tata group firm is India's largest integrated power company.

The company is involved in the business of generation, transmission, and distribution of electricity. It also manufactures solar roofs and builds EV charging stations.

Tata Power was a pioneer in adopting BESS technology. It set up BESS facility in 2019. Ever since it has made efforts towards developing and adopting best practices.

The company has also developed facilities for in-house repair of BESS equipment which brings with it benefits of self-sufficiency and reduced costs.

In February 2025, it signed an MoU with ONGC for joint opportunities in the BESS value chain.

In April 2025, the company announced that its installing 100 MW battery energy storage system in Mumbai over the next two years. It also plans to integrate BESS at its renewable sites to enable a round-the-clock supply of clean power.

In May 2025, its subsidiary commissioned India's largest solar and battery energy storage project comprising of 100 MW solar PV project and 120 MWh utility scale BESS.

Coming to its financials, the company's sales grew 6.5% YoY to Rs 654 bn in FY25, while net profit rose 11.5% YoY to Rs 47.7 bn.

Renewables contributed 44% of the capacity. Record rooftop solar installations helped the company retain its first position in the solar market.

Looking ahead, the company has plans to expand its green power generation capacity to supply 100% clean energy by 2045.

Conclusion

The growth prospects for battery energy storage system stocks are huge.

India's National Electricity Plan aims for 47 GW of battery energy storage by 2032. For context, the current installed capacity is just 300 MW. That's a projected growth of over 150 times in under a decade.

As per the industry players, by 2030, the Indian BESS market could reach US$ 32 bn, growing at a compound annual rate of 27%.

This shift is already beginning to show in the markets. Established names in power generation and renewable energy are either entering or expanding their storage portfolios.

Nevertheless, government policy, though supportive for now, can change course. And scaling BESS projects comes with execution risks.

Investors should evaluate the company's fundamentals, corporate governance, and valuations of the stock as key factors when conducting due diligence before making investment decisions.

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