INDIA’S ENERGY STORAGE LANDSCAPE 2H & ANNUAL 2025 REPORT – INDIA'S CUMULATIVE INSTALLED BATTERY ENERGY STORAGE CAPACITY CROSSES 1 GWh
India’s cumulative installed battery energy storage capacity reached 1,082 megawatt-hours (MWh) as of December 2025.
Solar-plus energy storage systems accounted for more than 54% of cumulative installed capacity, followed by about 23% from solar-plus-wind with round-the-clock projects and nearly 21% from standalone battery energy storage systems, with the remaining share contributed by solar plus wind with storage and floating solar-plus-storage projects.
As of this report’s publication, the cumulative installed capacity of pumped storage projects (PSPs) stood at over 7 gigawatts (GW), of which almost 6 GW was operational.
India’s energy storage sector is now entering a crucial growth phase. Rising tender volumes, changing auction tariffs, and supportive policy frameworks signal increasing market momentum.
As of December 2025, Bihar (24%), Chhattisgarh (16%), and Rajasthan (15%) were the top three states in terms of cumulative installed energy storage capacity.
Additionally, there were more than 1 GW of solar-plus-wind projects with round-the-clock capabilities, and 415 MWh of renewable energy-plus-storage projects with unspecified renewable and storage configurations.
Gujarat had the largest pipeline of standalone battery storage capacity under development.
Multiple agencies issued energy storage tenders totaling 20 GW during 2H 2025 and auctioned 15 GW of energy storage and storage-linked projects. Tender activity rose 30% compared to 15 GW in 1H 2025, while auction volumes surged 64% compared to 9 GW in 1H 2025.
Key Highlights from the Mercom India Research’s India’s Energy Storage Landscape 2H & Annual 2025 Report
- India added 547 MWh of battery energy storage capacity in 2025
- Bihar led in cumulative installed capacity, contributing 24% of the total
- Solar-plus-storage systems accounted for 54% of the total installed capacity as of December 2025
- India had over 7 GW of cumulative installed pumped storage projects
- In 2H 2025, 20 GW of energy storage projects were tendered, and 15 GW were auctioned.
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MERCOM INDIA RESEARCH
Mercom India Research is a leading research and consulting firm at the forefront of India’s clean energy transformation delivering timely, relevant market intelligence and advisory for India’s energy markets.
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