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U.S. Battery Energy Storage System Additions Set Record

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U.S. Battery Energy Storage System Additions Set Record

SEIA Report Shows 20.6 GWh Deployed in Q2

A battery energy storage facility is shown under construction in Arizona.
A battery energy storage facility is shown under construction in Arizona.

A battery energy storage facility is shown under construction in Arizona. | Shutterstock

Sep 1, 2026 | John Cropley

A new report indicates installed U.S. battery energy storage capacity jumped 20.2 GWh in the second quarter of 2026, the largest quarterly increase ever.

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