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Energy Storage

Wednesday
25 Mar 2026

Construction starts on Arevon’s 250-MW energy storage project in California

25 Mar 2026  by Arevon   

Arevon Energy has started construction on its 250-MW/1,000-MWh Cormorant Energy Storage Project in Daly City, California. The $600 million facility is expected to start operations 2027, and will be capable of powering approximately 321,000 homes for up to four hours.

Arevon energy

Arevon will own and operate Cormorant Energy Storage under a long-term offtake agreement with MCE, an electricity provider that serves more than 1.8 million residents and businesses across Contra Costa, Marin, Napa and Solano counties. The project was originally planned at 188 MW/752 MWh and has since expanded.

Cormorant will use lithium iron phosphate (LFP) battery technology. Primoris is the project’s EPC contractor, and at peak construction it is expected to employ approximately 175 workers.

“The start of construction marks an important milestone for the Cormorant project and the Daly City community,” said Justin Johnson, CEO at Arevon. “Projects like Cormorant are critical to strengthening California’s energy grid by storing power when it’s abundant and delivering it when it’s needed most. Arevon is proud to continue investing in infrastructure that supports reliability, affordability, and California’s long-term clean energy goals.”

Arevon currently has 3.7 GW of renewable energy projects in operation, with 550 more currently under construction

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