Battery Energy Storage Systems (BESS) make it possible to store solar and wind power and use it when it is needed most. With increasing government support and clear targets, India’s BESS market has increased, and installations rose from 51 MWh in 2023 to over 341 MWh in 2024 (source)
The government has mandated co-located storage for new solar projects (at least 2-hour storage or 10% of capacity) and announced ₹54,000 crore in viability gap funding (VGF) for 30 GWh of BESS. Storage is also now recognized as a generation under the law, allowing new business models like the rental or sale of stored power.
These policies, along with incentives like ISTS waiver and battery manufacturing subsidies, are driving a boom in Indian BESS deployment. The infographic below illustrates the multifaceted benefits of grid-scale BESS, from integrating renewables and firming capacity to improving power quality and enabling round-the-clock clean energy.
Figure: A utility-scale BESS installation (several battery containers) at NTPC’s Noida campus. Fourth Partner Energy deployed this 4 MWp solar + 1 MWh BESS project to demonstrate clean, firm power for industry. (Source)
Government Policies and Market Drivers
The Indian government has set aggressive targets (500 GW of renewables by 2030) and explicitly recognizes storage as key to balancing the grid. In 2023–2025, the Ministry of Power (MoP) and regulators introduced several measures:
Storage Obligation: All new solar/wind tenders must include ≥2 hours of co-located BESS (~10% of renewable capacity).
Viability Gap Funding: Central schemes now allocate vast funds (₹54,000 crore for 30 GWh in 2024) to make large BESS projects bankable.
Electricity Rules 2025: Storage assets are classified as generation, enabling storage companies to charge like generators and even sell/stage power under open access.
Grid & Tariff Reforms: CERC proposed streamlined tariffs for BESS (separate capacity/energy charges, 12-year life) and inclusion of storage contracts in power trading.
Domestic Content: The VGF scheme requires batteries (cells and ESS) to meet minimum local content, spurring local manufacturing.
These policies, along with state incentives and declining battery costs, have catalyzed private investment.
For example, India installed 341 MWh of BESS in 2024, a sixfold rise over 2023, and global estimates suggest 411 GWh will be needed by 2032. Leading Indian firms, from legacy power companies to new-energy startups, are all entering the BESS space.
The “round-the-clock” demand for green power and favorable peak tariffs is also attracting commercial buyers, making India a fast-growing BESS market.
1. Tata Power Renewable Energy Limited (TPREL)
Tata Power’s renewable arm has been a pioneer in Indian utility-scale storage. Since 2019, TPREL has actively integrated batteries with solar PV. In 2025, it commissioned multiple flagship projects, for example, a 100 MW solar farm paired with 120 MWh BESS in Maharashtra, and a 100 MW BESS in Mumbai (to be delivered over 2 years). (source)
Tata Power secured India’s first “Battery-Backed Supply Purchase Agreement” (BESPA) with state company NTPC for a 2-hour storage project in Kerala. These projects, often realized with international partners, showcase Tata Power’s technical capability and early mover advantage.
Overall, Tata Power Renewable has positioned itself as a leader in grid-scale BESS procurement and deployment, leveraging Tata Group’s strength in power and solar.
Head Office: C/o The Tata Power Co Ltd., A Block, 34 Sant Tukaram Road, Carnac Bunder, Mumbai – 400009
Phone: +91-22-6665-7508
Email: tprel@tatapower.com
2. Reliance New Energy Limited
Reliance Industries’ new-energy arm is rapidly scaling up in storage. Reliance announced one of the largest battery plans globally: a ₹75,000 crore investment to build a fully integrated battery manufacturing and storage complex at its Jamnagar campus.
The facility will initially produce 30 GWh of Li-ion cells per year (expandable to 100+ GWh) and assemble utility-scale BESS packs. In 2024, Reliance’s chairman Mukesh Ambani said their Jamnagar “Gigafactory” will start by assembling utility-scale BESS systems for solar and grid applications, and eventually build battery cells and chemicals onsite. Reliance already operates a US-acquired lithium battery plant.
This makes Reliance New Energy a key future supplier of batteries and storage systems for India. Its publicly stated ambition, massive capital, and integration with solar and even hydrogen electrolysers underscore its role as a future leader in Indian BESS manufacturing and deployment.
Registered Office: 9th Floor, Maker Chambers IV, 222 Nariman Point, Mumbai – 400021
Phone: +91-22-3555-5000
Email: info@ril.com
3. Adani Energy Solutions Limited
Part of the Adani Group, Adani Energy Solutions (formerly Adani Transmission & Distribution) is expanding into storage as well. The company’s investor relations disclose a designated facility at Adani Corporate House in Ahmedabad.
Adani has announced large solar parks and is seeking to add storage to those. While Adani Power and Adani Green are known for renewables, Adani New Industries Ltd. (ANI) has also been formed for new energy businesses, including batteries.
In early 2026, Adani signed on for a major green hydrogen project with batteries in Australia, indicating its interest in long-duration storage. Domestically, Adani is expected to leverage the NTPC-Reliance VGF tender and may soon tender its own BESS projects.
Registered Office: Adani Corporate House, Shantigram, Near Vaishnodevi Circle, SG Highway, Ahmedabad – 382421, Gujarat
Phone: +91-79-2656-5555
Email: jaladhi.shukla@adani.com
4. Exide Industries Limited
Exide is India’s oldest battery maker (est. 1947) and a household name in lead-acid batteries. In recent years, Exide has branched into grid-scale storage.
The company markets “Exide BESS”, a range of containerized energy storage solutions based on advanced VRLA (valve-regulated lead-acid) technology. Exide’s brochures emphasize 24×7 renewable integration and diesel offset for industries. Exide’s website notes a legacy of 70+ years in batteries.
In 2024–25, Exide invested in new lithium-ion cell production and announced tie-ups for dispatchable power projects. For example, Exide established a 1.5 billion INR fund to build a lithium-ion facility in Gujarat. While not many large Exide BESS projects have been publicly disclosed, Exide’s core strength in battery manufacturing and its new R&D on lithium batteries position it to be a major BESS supplier.
Its headquarters in Kolkata handles corporate and technical operations.
Head Office: Exide House, 59E Chowringhee Road, Kolkata – 700020
Phone: +91-33-2302-3400
Email: exideindustrieslimited@exide.co.in
5. Amara Raja Batteries Limited
Amara Raja is India’s second-largest industrial battery company (famous for the Amaron automotive battery brand). It too is adapting to BESS. Amara Raja’s Energy & Mobility arm offers large-format industrial batteries and containerized storage units.
Its key projects include partnering with Andhra Pradesh State Electricity Board on a 10 MW/40 MWh BESS pilot in 2023. The corporate office information above shows the Gachibowli address and general inquiries email for Amara Raja Batteries.
Amara Raja emphasizes “Make-in-India” and has designed lithium-ion packs for utility and telecom. In mid-2025, the company announced plans to increase Li-ion manufacturing capacity at its Andhra plants to meet BESS demand.
Corporate Office: Terminal A, 1-18/AMR/NR Nanakramguda, Gachibowli, Hyderabad – 500032
Phone: +91-40-2313-9000
Email: mktg@amararaja.com
6. HBL Power Systems (HBL Engineering Ltd.)
Formerly HBL Power Systems Ltd, HBL Engineering Ltd. is an established battery maker specializing in telecom, railway, and defense batteries. Recently, HBL launched containerized lithium-ion BESS units for grid applications.
The company website highlights “Made-in-India” BESS racks and contracts for underground and telecom infrastructure. HBL’s Hyderabad office (above) is the corporate/R&D HQ.
In 2025, HBL announced an order to supply a 1 MWh grid BESS to a northern state utility, showing its entry into the public storage market.
With decades of heavy battery expertise, HBL is leveraging that to serve emerging renewable storage needs.
Head Office: H.No. 8-2-601, Road No. 10, Banjara Hills, Hyderabad – 500034
Phone: +91-40-6616-7777
Email: contact@hbl.in
7. JSW Energy Limited
Part of the JSW Group, JSW Energy is a large power producer now building a BESS portfolio. Its Mumbai office (“JSW Centre”) is listed in corporate filings.
JSW Energy (through subsidiary SW Renew Energy) aggressively bid in a federal tender: in 2025, it won contracts to build 500 MW/1000 MWh of BESS (two 250 MW projects) under India’s second storage bidding round.
These modular 2-hour projects, to be located in Andhra Pradesh, will be among India’s largest. JSW also announced a 100 MW solar+storage park in 2025.
The company has further indicated interest in pumped hydro and long-duration storage. JSW’s strategy is to bundle storage with its renewable plants and expand into grid services. Investors can contact JSW Energy via the above helpline or email for more information.
Registered Office: JSW Centre, Bandra Kurla Complex, Bandra (East), Mumbai – 400051
Phone: +91-22-4286-1000
Email: jswel.investor@jsw.in
8. Okaya Power Pvt. Ltd.
Okaya Power is a Delhi-based company known for inverters, UPS systems, and batteries. It has expanded into solar and storage products in recent years.
Okaya markets containerized BESS for industrial use, and supplies large lithium-ion battery packs (for telecom towers and solar plants) along with power electronics.
The company’s website lists a New Delhi address and support contacts. Okaya’s growth has been fueled by backing from the Deccan India family, and it now has manufacturing facilities in Tamil Nadu.
In 2024, Okaya partnered with ReNew Power to supply batteries for off-grid solar projects, indicating its strategic move into utility-scale storage.
Corporate Office: Energis D-7, 3rd & 4th Floor, Rohtak Road, Udyog Nagar, Mangolpuri, New Delhi – 110041
Phone: +91-11-4745-1500
Email: care@okaya.in
9. Maxwell Energy Systems Pvt. Ltd.
Maxwell Energy (co-founded by Ola’s Bhavish Aggarwal) is an EV and energy tech company active in BESS components. It provides smart battery management systems (BMS), onboard chargers, and integrated power electronics for batteries and electric vehicles.
Maxwell’s offices (shown above) are in Pune and Bengaluru. In late 2024, Maxwell raised significant funding (with participation from Ola and TVS) to develop high-density batteries and BMS hardware for both vehicles and stationary storage. Its solutions have been tested in fleet vehicles and mini-grid pilot projects in India.
Maxwell positions itself as a high-tech BESS vendor, supplying “complete energy systems” (including batteries) for mobility and grid uses.
Registered Address: S. No. 218, Solitaire Office No. 5, Kalyani Nagar, Yerwada, Pune – 411006
Head Office: No. 24, Kalyani Platina Phase I, Whitefield, Bengaluru – 560066
Phone: +91-90042-28261
Email: marketing@maxwellenergy.co
10. AmpereHour (Solar Technology) Pvt. Ltd.
AmpereHour Energy (also known as AmpereHour Solar Tech) is a Pune-based startup specializing in intelligent energy storage. Founded by IITians in 2017, AmpereHour builds AI-driven energy management software and BESS controllers for microgrids, commercial buildings, and community solar+storage projects.
Its platform (ELINA) optimizes when stored energy is used or traded. AmpereHour participated in India’s first commercial grid-connected BESS trials and has deployed systems in factories and rural mini-grids. The corporate address above is its Chakan-Pune office.
In 2025, AmpereHour announced partnerships with major EPC firms to install multi-MWh BESS at industrial sites. Its focus is on behind-the-meter and edge storage solutions, making it a notable Indian-origin BESS integrator.
Registered Address: Plot No. PAP SH-84/1, Chakan MIDC Phase-2, Village Shinde, Pune – 410501
Phone: +91-97693-69624
Email: info@amperehourenergy.com
Conclusion
India’s BESS sector is vibrant and growing. The companies above span legacy battery makers (Exide, Amara Raja, HBL, Okaya), power utilities (Tata, JSW, Reliance, Adani), and innovative start-ups (Maxwell, AmpereHour). Each is contributing to building out storage capacity through manufacturing cells and packs, bundling storage with projects, or creating control software.
Thanks to recent supportive policies and falling costs, these companies are racing to deploy BESS: for example, Tata Power and ReNew have announced 200+ MWh of storage projects. With India aiming for round-the-clock green power, energy security, and grid reliability, BESS deployments are expected to scale dramatically.
These “Top 10” firms, all Indian-origin, are at the forefront, designing Make-in-India storage solutions that enable continuous renewable power, peak-load shifting, and new revenue streams.
0 Comments