Rising renewable energy penetration, rapid capacity additions, and evolving regulatory environment are making energy storage an essential part of India’s power system.. In the first quarter of 2026, the country added 4.6 GWh of battery energy storage capacity, according to Mercom India Research’s Q1 2026 India’s Energy Storage Landscape report.Rising renewable energy penetration, rapid capacity additions, and evolving market structures are making energy storage an essential part of India’s power system.