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In 2024, the United States saw a 66% increase in battery storage capacity, according to the January 2025 Preliminary Monthly Electric Generator Inventory. By the end of the year, the country’s total utility-scale battery storage capacity had exceeded 26 gigawatts (GW). A further 10.4 GW of new battery storage capacity was added during the year, making it the second-largest contributor to new generating capacity after solar energy. Although battery storage is expanding rapidly, it still represented just around 2% of the total 1,230 GW of utility-scale electricity generating capacity in the United States in 2024. However, the growth of battery storage is set to continue in 2025, with operators planning to add 19.6 GW of utility-scale battery storage to the grid, potentially setting a new record for capacity growth. Battery storage systems do not generate electricity directly. Instead, they store electricity that has already been produced by power plants or taken from the electrical grid. These systems act as secondary sources of power, storing and supplying energy when needed. |
