U.S. large-scale battery storage capacity up 35% in 2020, rapid growth set to continue

The United States continued a trend of significant growth in large-scale battery storage capacity in 2020, when year-end U.S. battery power capacity reached 1,650 megawatts (MW). According to our report, Battery Storage in the United States: An Update on Market Trends, U.S. battery power capacity grew by 35% in 2020 and has tripled in the last five years. The trend is expected to continue; utilities have reported plans to install over 10,000 MW of additional large-scale battery power capacity in the United States from 2021 to 2023—10 times the capacity in 2019.