Wedoany.com Report-Oct. 8, The United States recorded its highest-ever quarterly battery energy storage deployment between April and June, with 5.6 GW of new installations, according to a report released by the American Clean Power Association (ACP) and Wood Mackenzie.

The growth was driven by utility-scale storage, which accounted for 4.9 GW of the total. This represented a 62% year-on-year increase. The ACP noted that the capacity installed is enough to supply electricity to 3.7 million households during peak-demand hours.

Regional contributions were significant. California, Texas, and Arizona each added over 1 GW of storage capacity during the quarter, highlighting their role in leading the sector. The report also projected that Florida and Georgia will emerge as important growth markets in the coming years, due to substantial procurement strategies by vertically integrated utilities.

An example cited was Georgia Power’s request for proposals for 500 MW of grid-scale storage, which reflects the growing commitment of utilities in the southeastern region to expand their energy storage portfolios.

The record performance underscores the expanding role of battery storage in strengthening grid reliability, supporting renewable integration, and meeting peak demand. Analysts emphasized that large-scale storage deployment is becoming a cornerstone of modern energy infrastructure in the United States, with utility companies accelerating adoption to manage rising electricity demand and ensure system stability.

The report also suggested that consistent policy support and continued investments are critical to sustaining momentum in the storage market. With multiple states actively pursuing procurement programs and large projects moving forward, the sector is set to expand beyond traditional hubs into new regions.

Overall, the addition of 5.6 GW in one quarter marks a major milestone for the U.S. storage industry, showing rapid progress in scaling technologies that are central to the clean energy transition. The increasing participation of both established and emerging markets indicates a broadening foundation for long-term growth.

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