India is projected to require 888 GWh of energy storage system capacity by 2035-36, a sharp increase from the current 1 GWh, according to an industry report released on Wednesday.
India BESS Market Review report was released by India Energy Storage Alliance (IESA) and Customized Energy Solutions (CES) at India Energy Storage Week (IESW).
The report emphasized that energy storage has become the central pillar for enhancing grid reliability and supporting the nation’s renewable energy goals, according to the statement.
India’s energy storage system (ESS) capacity is projected to rise from the current level of about 1 GWh to 888 GWh by 2035–36.
The inaugural session of IESW 2026 featured industry leaders and delegates from 15 countries.
The report underscores energy storage as a vital driver of India’s shift toward renewable energy, emphasizing its expanding contribution to enhancing grid reliability, facilitating renewable energy integration, and bolstering the resilience of the power system.
Organised by IESA, the three-day event at Yashobhoomi (IICC) convenes more than 200 exhibitors and over 10,000 industry leaders for policy deliberations, technical exchanges, and key announcements that will shape India’s clean energy transition.
The report further shows that India’s installed BESS capacity increased 11-fold in just six months, from 0.78 GWh in December 2025 to 8.7 GWh in H1 2026, and the country is on track to surpass 10 GWh of installed BESS capacity by the end of the year.
India's manufacturing momentum is also accelerating, with current Li-ion battery cell manufacturing capacity at around 2 GWh and announced targets of approximately 110 GWh by 2030.
Cell/pack to container capacity is expected to reach 180-200 GWh by 2030.
India’s domestic battery manufacturing ecosystem is also gaining momentum.
Existing lithium-ion battery cell manufacturing capacity is about 2 GWh, but announced expansion plans aim to raise this to roughly 110 GWh by 2030.
By the end of the decade, combined cell and battery pack-to-container manufacturing capacity is expected to reach between 180 GWh and 200 GWh.
The report highlights that, even amid global supply chain disruptions and increasing battery costs, India’s BESS industry has shown exceptional resilience and is now acknowledged as one of the fastest-expanding markets worldwide.