gridprims

Power plant · EIA plant code 57439

California Valley Solar Ranch

Operator
Clearway Energy Operating LLC
Location
San Luis Obispo, CA (county level only)
Balancing authority
California Independent System Operator (CISO)
Nameplate capacity
249.8 MW
Summer capacity
249.8 MW

U.S. Energy Information Administration · Annual Electric Generator Report (Form EIA-860) · data for 2025 · as of Sep 10, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

Generation in 2025

Net generation
558,684 MWh
Capacity factor
25.5%

Capacity factor is net generation divided by nameplate capacity times the hours each generator was in service that year, counted by month.

U.S. Energy Information Administration · Power Plant Operations Report (Form EIA-923) · data for 2025 · as of Sep 11, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

Emissions

eGRID2023 (revision 2) reports no carbon dioxide for this plant.

Emissions are for 2023, the newest eGRID year. Generation is for 2025, the newest EIA-923 year.

U.S. Environmental Protection Agency · Emissions & Generation Resource Integrated Database (eGRID) · data for 2023 · as of Jun 16, 2025 · retrieved Oct 31, 2026 · CC-BY-4.0

Generators

Generators at California Valley Solar Ranch
GeneratorTechnologyEnergy sourceNameplateOperating sinceStatus
HPR2Solar PhotovoltaicSUN32.3 MW2013Operable · As of September 2026 (EIA-860M): (OP) Operating
HPR2ASolar PhotovoltaicSUN21 MW2012Operable · As of September 2026 (EIA-860M): (OP) Operating
HPR2BSolar PhotovoltaicSUN86.5 MW2013Operable · As of September 2026 (EIA-860M): (OP) Operating
HPR2CSolar PhotovoltaicSUN70 MW2013Operable · As of September 2026 (EIA-860M): (OP) Operating
HPR2DSolar PhotovoltaicSUN40 MW2013Operable · As of September 2026 (EIA-860M): (OP) Operating

U.S. Energy Information Administration · Monthly Update to the Annual Electric Generator Report (Form EIA-860M) · data for 2026-09 · as of Oct 23, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

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