A California storage agreement of 538MW has been won by a US developer

Ameresco will design and install three systems for Southern California Edison by August of next year

Southern California Edison (SCE) has awarded Ameresco a contract to design and install three grid-scale battery energy storage systems with a combined capacity of more than 537MW.

The projects will be built on existing substation sites within SCE’s California service zone.

The technologies, according to Ameresco, will improve grid resilience, with a planned commercial operation date of August 2022.

The systems have a total capacity of 537.5MW and a four-hour endurance, totaling 2150 megawatt-hours.

They will be placed in the San Joaquin Valley, Rancho Cucamonga and adjacent areas, and the Long Beach region, on three different distribution-level substation sites.

Ameresco will provide the storage as part of a comprehensive engineering, procurement, construction, and maintenance contract.

“As we move to supplying 100 percent sustainable renewable energy to consumers, SCE sees an increasing role for battery storage,” said SCE president and CEO Kevin Payne.

“The Ameresco battery storage devices will make the grid more robust to the effects of extreme weather and will help us continue our progress toward a clean energy future, which is critical in combatting climate change.”

“Innovative cleantech initiatives of this size have the opportunity to bring revolutionary solutions to regions in need of reliable and resilient energy,” Ameresco CEO George Sakellaris stated.

“At Ameresco, we are ecstatic to be a part of a project that takes such a significant step forward in offering cleantech solutions to mitigate the devastating consequences of extreme weather across the country.”

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