The US added a record 20.2 GWh of battery storage in just 3 months

The US added a record 20.2 GWh of battery storage capacity in Q2 2026, with utility-scale projects accounting for nearly all the growth, particularly in Arizona, Texas, and California. Battery storage has expanded rapidly beyond traditional markets, with more than 74% of new capacity installed in states won by Donald Trump in 2024, and the industry has raised its 2030 forecast by 11.5% due to stronger-than-expected demand.