India’s cumulative installed energy storage capacity reached 490 MWh by the end of June 2025, according to the newly released India’s Energy Storage Landscape 1H 2025 report by Mercom India Research.

In 1H 2025, 48.4 MWh of energy storage capacity was added in India, representing a 74% decline compared to 186 MWh added in the same period last year.

India also has an operational pumped storage capacity of 5 GW as of the time of the report’s publication.

Strong policy support, including Tranche II of viability gap funding and the CEA’s mandate to include co-located storage in all solar tenders with a minimum duration of two hours, equivalent to 10% of solar capacity, is helping accelerate the adoption of energy storage across the country.

As of June 2025, Karnataka (33%), Chhattisgarh (24%), and Gujarat (16%) were the top three states in terms of cumulative installed energy storage capacity.

Solar-plus-storage systems accounted for nearly 56% of India’s cumulative installed capacity. This was followed by more than 32% from solar-plus-wind projects with round-the-clock capability, and over 12% from standalone battery energy storage systems. The remaining share came from floating solar with storage, and solar-plus-wind projects with storage capabilities.

As of June 2025, India had nearly 13.7 GWh of standalone battery storage, approximately 3.9 GWh of solar-plus-wind projects with storage capabilities, nearly 3.2 GWh of solar-plus-storage projects, over 1.4 GWh of solar-plus-wind projects with round-the-clock capabilities, and 415 MWh of renewable energy-plus-storage projects at various stages of development. Additionally, over 81 GW of pumped storage was in the development pipeline.

Gujarat had the largest pipeline of standalone battery storage capacity under development, followed by Maharashtra and Rajasthan.

Various government agencies issued energy storage tenders totaling over 16 GW in 1H 2025 and auctioned more than 9 GW of projects, with or without associated renewable energy capacity. Solar-plus-storage tenders saw significant momentum, recording nearly 381% year-over-year increase over tenders issued in 1H 2024.

Key Highlights from the Mercom India Research’s India’s Energy Storage Landscape 1H 2025 Report

• India’s cumulative energy storage capacity reached 490 MWh as of June 2025
• India added over 48 MWh of energy storage capacity in 1H 2025
• Solar-plus-storage systems accounted for approximately 56% of the cumulative installed energy storage capacity as of June 2025
• Karnataka led cumulative installed energy storage capacity, contributing over 33% of the total
• India had 5 GW of operational pumped storage capacity, with over 81 GW in various stages of development.
• In 1H 2025, more than 16 GW of energy storage projects were tendered, and over 9 GW were auctioned.

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