Arevon Energy has reached a significant construction milestone at its Cormorant Energy Storage Project in Daly City, California, a 250-megawatt (MW)/1,000 megawatt-hour (MWh) battery facility expected to begin operating in 2027.
Once online, it will be able to supply enough electricity for about 321,000 homes for up to four hours during peak demand.
Arevon is developing, owning, and operating the project, with Primoris Services Corporation’s Renewables group handling construction.
Cormorant uses lithium iron phosphate battery technology and will employ roughly 175 workers at the height of construction. Construction began in March 2026.
“This event recognized the tremendous work of our construction crews and project partners who are bringing this facility to life. Arevon is proud to invest in projects that store power when it is abundant, deliver it when it is needed most, and support a more reliable and affordable energy future for California,” said Justin Johnson, Chief Executive Officer at Arevon, in a statement.
The facility is contracted under a long-term agreement with MCE, which 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 was expanded to its current size, with MCE contracting for the added capacity.
Cormorant is expected to generate more than $73 million in property tax revenue over its lifetime for schools, infrastructure, and public services. The company has partnered with more than a dozen local organizations in the Daly City and Bayshore area through donations, sponsorships, scholarships, and volunteer work.
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