Total installed grid-scale battery storage capacity stood at close to 28 GW at the end of 2022, most of which was added over the course of the previous 6 years. Utility-scale battery storage in the United States is poised to more than double over the next two years and will close out 2026 at nearly 65 GW — a rapid rise. . We quantify the global EV battery capacity available for grid storage using an integrated model incor-porating future EV battery deployment, battery degradation, and market participation. power grid in 2025 in our latest Preliminary Monthly Electric Generator Inventory report. This amount represents an almost 30% increase from 2024 when 48. Source: EIA, Short Term Energy Outlook. Storage Capacity (How big is the tank?) (kWh) E.
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