The interactive figure below presents results on the total installed ESS cost ranges by technology, year, power capacity (MW), and duration (hr). By technology, batteries held 53. 84% of the energy storage market share in 2025, while hydrogen-based storage is poised for a 38. 26% of the 2025 energy storage market size, and off-grid deployments are forecast to expand at a. With renewable sources expected to account for the largest share of electricity generation worldwide in the coming decades, energy storage will play a significant role in maintaining the balance between supply and demand. 41 GW by 2030, growing at a CAGR of 11.