How many natural gas power plants are in Washington?

16, with 4 GW of nameplate capacity between them, spread over 10 counties. That is the EIA-860M operating count for 2026-07.

Is there a map of Washington natural gas power plants?

Yes — the map above. Each dot is one natural gas power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.

Which is the largest natural gas power plant in Washington?

Grays Harbor Energy Facility, at 715 MW. The table is sorted largest first, so the rest follow it.

Is there a natural gas power plant near me in Washington?

The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.

Which grid operator runs Washington's natural gas power plants?

No single ISO or RTO covers most of them. EIA files each plant against its own balancing authority, which in Washington is largely a vertically integrated utility rather than an organised market.

How current is this, and what is left out?

EIA-860M for 2026-07. Combined cycle, combustion turbine, steam turbine, internal combustion and other gas-fired units. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.

Natural Gas Power Plants in Washington

Every operating natural gas power plant in Washington on EIA-860M for 2026-07: 16 plants, 43 generating units and 4 GW of nameplate capacity across 10 counties.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 16; 43 generating units
Nameplate capacity: 4 GW
Counties: 10
Grid operator: Mixed; no single ISO covers a majority

Map of natural gas power plants in Washington

Every one of the 16 plants is drawn at the coordinate EIA files for it.

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Natural gas · 16

List of natural gas power plants in Washington

Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.

natural gas power plants in Washington

Grays Harbor Energy FacilityNatural Gas Fired Combined Cycle	Invenergy Services LLC	Grays Harbor	714.9	3	2008	Operating
Chehalis Generating FacilityNatural Gas Fired Combined Cycle	PacifiCorp	Lewis	593.3	3	2003	Operating
Fredonia (WA)Natural Gas Fired Combustion Turbine	Puget Sound Energy Inc	Skagit	376	4	1984	Standby/Backup
Mint Farm Generating StationNatural Gas Fired Combined Cycle	Puget Sound Energy Inc	Cowlitz	319	2	2008	Operating
Frederickson Power LPNatural Gas Fired Combined Cycle	Frederickson Power LP	Pierce	318.3	2	2002	Operating
Goldendale Generating StationNatural Gas Fired Combined Cycle	Puget Sound Energy Inc	Klickitat	302.8	2	2004	Operating
Ferndale Generating StationNatural Gas Fired Combined Cycle	Puget Sound Energy Inc	Whatcom	285.5	3	1994	Operating
River Road Gen PlantNatural Gas Fired Combined Cycle	PUD No 1 of Clark County - (WA)	Clark	248	1	1997	Operating
FredericksonNatural Gas Fired Combustion Turbine	Puget Sound Energy Inc	Pierce	177.8	2	1981	Operating
EncogenNatural Gas Fired Combined Cycle	Puget Sound Energy Inc	Whatcom	176.4	4	1993	Operating
WhitehornNatural Gas Fired Combustion Turbine	Puget Sound Energy Inc	Whatcom	169.2	2	1981	Operating
HF Sinclair Puget Sound RefiningNatural Gas Fired Combustion Turbine	HF Sinclair Corporation	Skagit	139.8	3	1991	Operating
Sumas Power PlantNatural Gas Fired Combined Cycle	Puget Sound Energy Inc	Whatcom	125.5	2	1993	Operating
Northeast (WA)Natural Gas Fired Combustion Turbine	Avista Corp	Spokane	61.8	1	1978	Operating
Boulder ParkNatural Gas Internal Combustion Engine	Avista Corp	Spokane	24.6	6	2002	Operating
Grimes Way2 technologies	Washington State University	Whitman	4	3	2005	Standby/Backup

Largest natural gas power plants in Washington

1Grays Harbor Energy FacilityGrays Harbor County, Washington714.9 MW
2Chehalis Generating FacilityLewis County, Washington593.3 MW
3Fredonia (WA)Skagit County, Washington376 MW
4Mint Farm Generating StationCowlitz County, Washington319 MW
5Frederickson Power LPPierce County, Washington318.3 MW
6Goldendale Generating StationKlickitat County, Washington302.8 MW
7Ferndale Generating StationWhatcom County, Washington285.5 MW
8River Road Gen PlantClark County, Washington248 MW
9FredericksonPierce County, Washington177.8 MW
10EncogenWhatcom County, Washington176.4 MW

Natural gas power plants by county in Washington

The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.

County	Plants	Nameplate MW
Whatcom	4	756.6
Grays Harbor	1	714.9
Lewis	1	593.3
Skagit	2	515.8
Pierce	2	496.1
Cowlitz	1	319
Klickitat	1	302.8
Clark	1	248
Spokane	2	86.4
Whitman	1	4

Natural Gas Power Plants in Washington: FAQ

How many natural gas power plants are in Washington?: 16, with 4 GW of nameplate capacity between them, spread over 10 counties. That is the EIA-860M operating count for 2026-07.
Is there a map of Washington natural gas power plants?: Yes — the map above. Each dot is one natural gas power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.
Which is the largest natural gas power plant in Washington?: Grays Harbor Energy Facility, at 715 MW. The table is sorted largest first, so the rest follow it.
Is there a natural gas power plant near me in Washington?: The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
Which grid operator runs Washington's natural gas power plants?: No single ISO or RTO covers most of them. EIA files each plant against its own balancing authority, which in Washington is largely a vertically integrated utility rather than an organised market.
How current is this, and what is left out?: EIA-860M for 2026-07. Combined cycle, combustion turbine, steam turbine, internal combustion and other gas-fired units. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.