Black Walnut Energy Storage LLC

Santa Paula, California

Capacity
15 MW
Status
Operating
Fuel
Battery storage
Technology
Batteries
Operator
Black Walnut Energy Storage LLC
City
Santa Paula
County
Ventura County
State
California
Operational date
October 2025
Balancing authority
CISO

Black Walnut Energy Storage LLC is a 15 MW battery storage power plant in Santa Paula, California. Operated by Black Walnut Energy Storage LLC, it has been operating since 2025. The facility is located in Ventura County, within the CISO balancing authority.

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Nearby battery storage plants in California

Source: U.S. Energy Information Administration (EIA-860M)