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Dive Brief:
The United States installed 9.7 GWh of battery energy storage in the first quarter of 2026, up 32% year over year, the Solar Energy Industries Association said in a May 21 release. It’s the highest-ever first-quarter energy storage deployment in the U.S., SEIA said.
Utility-scale deployments reached 1.5 GW/7.8 GWh; commercial and industrial deployments reached 648 MWh; and residential deployments hit 515 MWh, SEIA said.
Forty-eight percent of installed utility-scale energy storage capacity is colocated with solar generation and 51% is standalone, with the remainder colocated with wind generation, SEIA said.
