Batteries are a fast-growing secondary electricity source for the grid ›

Utility-scale battery energy storage systems have been growing quickly as a source of electric power capacity in the United States in recent years. In the first seven months of 2024, operators added 5 gigawatts (GW) of capacity to the U.S. electric power grid, according to data in our July 2024 electric generator inventory. In 2010, only 4 megawatts (MW) of utility-scale battery energy storage was added in the United States. In July 2024, more than 20.7 GW of battery energy storage capacity was available in the United States. More ›

Data source: U.S. Energy Information Administration, early release 2023 Annual Electric Generator Report (for annual data 2010–23) and our July 2024 electric generator inventory (for July 2024 data)