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Preliminary 2025 facility recordOperating

Byron, CA · EIA plant 57483

Mariposa Energy Project

Mariposa Energy Project is a oil & gas power facility in Byron, CA, with 200 MW of operating capacity.

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Operating capacity200 MW4 operating generators
Proposed capacity0 MW0 proposed generators
UtilityDiamond Generating CorporationEIA-reported operator
Balancing authorityCISOCalifornia Independent System Operator

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Oil & gas200 MW
ProposedNo proposed capacity reported
Reported technologiesNatural Gas Fired Combustion Turbine

Nearby in CA

Related facilities

CA · 1.4 miSand Hill C80 MW →CA · 1.9 miDiablo Winds LLC18 MW →CA · 2.1 miGolden Hills North Wind Energy Center46 MW →CA · 2.4 miSand Hill B17 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