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Power plant · EIA plant code 7179

Headgate Rock

Operator
Colorado River Indian Irr Proj
Location
La Paz, AZ (county level only)
Balancing authority
Western Area Power Administration - Desert Southwest Region (WALC)
Nameplate capacity
19.5 MW
Summer capacity
19.5 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
40,871 MWh
Capacity factor
23.9%

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 Headgate Rock
GeneratorTechnologyEnergy sourceNameplateOperating sinceStatus
1Conventional HydroelectricWAT6.5 MW1993Operable · As of September 2026 (EIA-860M): (OA) Out of service but expected to return to service in next calendar year
2Conventional HydroelectricWAT6.5 MW1993Operable · As of September 2026 (EIA-860M): (OA) Out of service but expected to return to service in next calendar year
3Conventional HydroelectricWAT6.5 MW1993Operable · As of September 2026 (EIA-860M): (OA) Out of service but expected to return to service in next calendar year

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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