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Preliminary 2025 facility recordOperating

Santa Paula, CA · EIA plant 65396

Black Walnut Energy Storage LLC

Black Walnut Energy Storage LLC is a storage power facility in Santa Paula, CA, with 15 MW of operating capacity.

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Operating capacity15 MW1 operating generators
Proposed capacity0 MW0 proposed generators
UtilityBlack Walnut Energy Storage LLCEIA-reported operator
Balancing authorityCISOCalifornia Independent System Operator

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Storage15 MW
ProposedNo proposed capacity reported
Reported technologiesBatteries

Nearby in CA

Related facilities

CA · 0.1 miSanta Paula Energy Storage LLC30 MW →CA · 9.0 miSaticoy100 MW →CA · 9.3 miSpringville Hydroelectric1 MW →CA · 9.3 miVentura Solar3 MW →

Source quality

Preliminary facility data

This page uses the EIA-860 2025 Early Release. EIA identifies the release as preliminary, so it should not be used for official state or national aggregation. Capacity is nameplate capacity, not real-time output or annual generation.

Read methodologyEIA-860 source