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HF Sinclair Puget Sound Refining

Natural gas power plant · Skagit County, Washington

Nameplate capacity

140 MW

Rank in Washington

#44

of 139 plants

In service since

1991

September 1991

Details

Primary fuel: Natural gas
Technology: Natural Gas Fired Combustion Turbine
Operator: HF Sinclair Corporation
County: Skagit County
Generating units: 3
Share of state capacity: 0.44%
Rank among natural gas plants in Washington: #12 of 16
EIA plant code: 54268

Generating units

Individual generating units at HF Sinclair Puget Sound Refining
Unit	Technology	Nameplate	Summer	Online	Status
GTG1	Natural Gas Fired Combustion Turbine	47 MW	40 MW	1991	Operating
GTG2	Natural Gas Fired Combustion Turbine	47 MW	40 MW	1991	Operating
GTG3	Natural Gas Fired Combustion Turbine	47 MW	40 MW	1993	Operating

Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.

Similarly sized plants in Washington

Lund Hill Solar	Solar	150 MW
Rattlesnake Flat	Wind	144 MW
Washington Wind	Wind	136 MW
Merwin	Hydro	136 MW

About this data

From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 140 MW solar plant and a 140 MW nuclear plant have the same entry here and produce very different amounts of electricity.

“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Washington power plants · What Washington actually generates