INDIA’S ENERGY STORAGE LANDSCAPE Q2 and 1H 2026 REPORT – INDIA'S CUMULATIVE INSTALLED BATTERY ENERGY STORAGE CAPACITY REACHES 9.3 GWh
India’s cumulative installed battery storage capacity reached 9.3 GWh as of June 2026.
Standalone battery storage dominated cumulative installations, accounting for 83% of capacity. Solar-plus-wind projects with storage offering round-the-clock (RTC) capabilities accounted for 9%, followed by solar-plus-storage projects at 8%. Other solar-plus-wind projects with storage and floating solar-plus-storage accounted for marginal shares.
India also had 7.4 GW of installed pumped storage capacity as of June 2026, with approximately 6 GW operational. Uttarakhand added 250 MW of pumped storage capacity during Q2 2026. Uttarakhand added 250 MW of pumped storage capacity during Q2 2026.
The rapid expansion of installed capacity is shifting the industry’s focus beyond deployment volumes toward project execution and long-term performance.
In Q2 2026, India added 3.6 GWh of battery energy storage capacity, down 22% QoQ from the record Q1 additions. Standalone storage accounted for nearly 98% of additions, with solar-plus-storage making up the balance. Despite the decline, quarterly additions remained strong, reflecting continued storage market momentum.
Gujarat had the largest pipeline of standalone battery storage capacity, followed by Rajasthan and Andhra Pradesh.
Battery storage procurement also expanded sharply during 1H 2026. A total of 28 GW was tendered, up 86% YoY from 15 GW. However, auctioned capacity declined 18 % YoY to 9 GW from 11 GW, highlighting a widening gap between tender issuance and completed auctions.
Key Highlights from Mercom India Research’s Q2 and 1H 2026 Energy Storage Landscape Report:
- India added 8.2 GWh of battery storage capacity in 1H 2026, nearly 84 times the capacity added in 1H 2025
- Cumulative installed battery storage capacity reached 9.3 GWh as of June 2026
- Standalone battery storage accounted for 83% of cumulative installed capacity
- Rajasthan led cumulative installed battery storage capacity, accounting for 36% of the total
- Energy storage tendering reached 28 GW in 1H 2026, up 86% YoY, while 9 GW was auctioned
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