Recently, the US Energy Information Administration released a survey of US battery storage capacity as of 2023. A battery energy storage system (BESS), battery storage power station, battery energy grid storage (BEGS) or battery grid storage is a type of energy storage technology that uses a group of batteries in the grid to store electrical energy. 4 GW of new battery storage capacity in 2024, the second-largest generating capacity. Energy storage supports the electric grid by storing excess power – such as midday solar – and delivering it when generation is low, including during cloudy days or calm, windless periods. It is an informative resource that may help states, communities, and other stakeholders plan for EV infrastructure deployment, but it is not intended to be used. Battery capacity in WEIM areas grew from about 2,600 MW in 2023 to about 5,000 MW by the end of 2024.
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