Battery storage capacity in the US more than tripled to 4,631GW in 2021 and increasingly broadened out of ancillary services, according to the Energy Information Administration (EIA).
The amount of battery storage capacity grew 220%, from 1,438MW in 2020, driven by the commissioning of 106 utility-scale systems with 3,202MW, the EIA said. That means 2,923MW of new battery storage entered commercial operation over the course of the year.
source: BloombergNEF