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Preliminary 2025 facility recordOperating

Groveland, CA · EIA plant 380

Dion R Holm

Dion R Holm is a hydro power facility in Groveland, CA, with 180 MW of operating capacity.

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Operating capacity180 MW2 operating generators
Proposed capacity0 MW0 proposed generators
UtilityCity & County of San Francisco - (CA)EIA-reported operator
Balancing authorityCISOCalifornia Independent System Operator

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Hydro180 MW
ProposedNo proposed capacity reported
Reported technologiesConventional Hydroelectric

Nearby in CA

Related facilities

CA · 1.5 miR C Kirkwood133 MW →CA · 19.1 miMoccasin104 MW →CA · 19.6 miMoccasin Low Head Hydro Project3 MW →CA · 19.7 miSierra Pacific Sonora8 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