List of power stations in Washington explained

This is a list of electricity-generating power stations in the U.S. state of Washington, sorted by type and name. These include facilities that are located in more than one state. In 2020, Washington had a total summer capacity of 30,669 MW through all of its power plants, and a net generation of 116,114 GWh.[1] The electrical energy generation mix in 2022 was 67.6% hydroelectric, 12.5% natural gas, 8.4% nuclear, 6.9% wind, 3.1% coal, and 1.1% biomass which includes most refuse-derived fuel. Other gases and utility-scale solar facilities generated most of the remaining 0.4%. Small-scale photovoltaic installations generated an additional net 393 GWh to the state's electrical grid; an amount over four times larger than Washington's utility-scale photovoltaic plants.

Washington routinely delivers one-quarter of U.S. hydroelectric generation, and hosts the nation's largest capacity power station at Grand Coulee Dam. 60% of Washington households use electricity as their primary heating fuel, unlike most households in other U.S. states that typically utilize natural gas.[2]

Fossil-fuel power stations

Data from the U.S. Energy Information Administration serves as a general reference.

Natural Gas

NameLocationCoordinatesCapacity (MW)OperatorYear
opened
Scheduled
retirement
Refs
Boulder Park Generation StationSpokane Valley47.6969°N -117.1473°Walign=center 24Avista2002
Chehalis Generation FacilityChehalis46.6221°N -122.9141°Walign=center 477PacifiCorp2003
Encogen Generating StationBellingham48.7452°N -122.4864°Walign=center 159Puget Sound Energy1993
Fredonia Generating StationSkagit48.4558°N -122.4358°Walign=center 280Puget Sound Energy1984, 2001
Frederickson Generating StationFrederickson47.0797°N -122.365°Walign=center 134Puget Sound Energy1981
Frederickson 1 Generating StationFrederickson47.0861°N -122.3657°Walign=center 246Capital Power2002
Goldendale Generating StationGoldendale45.8114°N -120.833°Walign=center 263Puget Sound Energy2004
Grays Harbor Energy Center[3] Satsop46.9692°N -123.48°Walign=center 604Invenergy2008
March Point Cogeneration PlantAnacortes48.4708°N -122.56°Walign=center 120March Point Cogeneration Company1991, 1993
Mint Farm Generating StationLongview46.1401°N -122.985°Walign=center 270Puget Sound Energy2008
Northeast (WA)Spokane47.7351°N -117.3705°Walign=center 45Avista1978
River Road Generating PlantVancouver45.6499°N -122.7247°Walign=center 220Clark Public Utilities2010
Sumas Generating StationSumas48.9905°N -122.2733°Walign=center 125Puget Sound Energy1993
Ferndale Generating StationFerndale48.829°N -122.6851°Walign=center 270Tenaska Energy1994
Whitehorn Generating StationFerndale48.8856°N -122.7516°Walign=center 134Puget Sound Energy1974, 1981

Renewable power stations

Data from the U.S. Energy Information Administration serves as a general reference.

Hydroelectric

See also: List of dams and reservoirs in Washington.

NameLocationCoordinates River Capacity (MW) Operator Year
opened
Alder DamPierce County, Washington46.8016°N -122.3102°WNisqually Riveralign=center 50Tacoma Power1945[4]
Bonneville DamSkamania County, Washington
Multnomah County, Oregon
45.6441°N -121.941°WColumbia Riveralign=center 1,093 1938, 1981 electricity generated in Oregon
Metaline Falls, Washington48.9871°N -117.3478°WPend Oreille Riveralign=center 1,024 1967
Box Canyon DamIone, Washington48.7809°N -117.4183°WPend Oreille Riveralign=center 90 Pend Oreille PUD1955
Cedar Falls, Washington47.4193°N -121.7819°WCedar River (Washington)align=center 30 Seattle City Light1921, 1929
Douglas County, Washington
Okanogan County, Washington
47.9951°N -119.6404°WColumbia Riveralign=center 2,620 United States Army Corps of Engineers1958, 1973
Lewis County, Washington46.4661°N -122.1097°WCowlitz Riveralign=center 70 Lewis County Public Utilities District1994 [5]
Mason County, Washington47.4181°N -123.2252°WSkokomish Riveralign=center 43Tacoma Power1926[6]
Mason County, Washington47.3698°N -123.1603°WSkokomish Riveralign=center 81Tacoma Power1930–1931,
1952, 2013
Whatcom County, Washington48.7139°N -121.1317°WSkagit Riveralign=center 159 1936–1937
Pierce County, Washington46.991°N -122.1749°WPuyallup Riveralign=center 26 Electron Hydro, LLC.1904, 1929
Whatcom County, Washington48.6981°N -121.2086°WSkagit Riveralign=center 199 1924, 1929,
1951
Grant and Okanogan counties47.9575°N -118.9773°WColumbia Riveralign=center 6,809 1941, 1975 Includes 314 MW pumped-storage
Snohomish County, Washington47.9084°N -121.8144°WSultan Riveralign=center 1121984[7]
Franklin and Walla Walla counties46.2498°N -118.8798°WSnake Riveralign=center 603 1962,
1975–1976
Chelan, Washington47.8347°N -120.0133°WChelan Riveralign=center 62.1 Chelan County Public Utility District1927–1928[8]
Pierce County, Washington46.8328°N -122.3196°WNisqually Riveralign=center 641912, 1945[9]
Columbia and Whitman counties46.5838°N -118.0273°WSnake Riveralign=center 932 United States Army Corps of Engineers1970–1971,
1978
Lincoln County, Washington47.8344°N -117.8361°WSpokane Riveralign=center 71 Avista Utilities1915, 1919,
1924
[10]
Skagit County, Washington48.5478°N -121.7407°WBaker River (Washington)align=center 79 1960, 2013
Garfield and Whitman counties 46.6595°N -117.4294°WSnake Riveralign=center 932 1975, 1978
Franklin and Walla Walla counties46.5635°N -118.5397°WSnake Riveralign=center 932 1969–1970,
1979
Lewis County, Washington46.5035°N -122.5885°WCowlitz Riveralign=center 162 1963, 1983[11]
Clark and Cowlitz counties45.9567°N -122.5544°WLewis River (Washington)align=center 136 1931–1932,
1949, 1958
Lewis County, Washington46.5347°N -122.4247°WCowlitz Riveralign=center 3001968[12]
Grant and Yakima counties46.6451°N -119.908°WColumbia Riveralign=center 955 1959–1961
Chelan and Douglas counties47.3461°N -120.0917°WColumbia Riveralign=center 660 1931–1932,
1952–1953,
1978–1979
Chelan and Douglas counties47.5336°N -120.2953°WColumbia Riveralign=center 1,300 Chelan County Public Utility District1961,
1973–1974
Whatcom County, Washington48.7326°N -121.0679°WSkagit Riveralign=center 353 Seattle City Light1952–1956
Snoqualmie, Washington47.5401°N -121.837°WSnoqualmie Riveralign=center 54 1898, 1957,
2013
Skamania County, Washington46.0608°N -122.2017°W
46.0594°N -122.2594°W
Lewis River (Washington)align=center 240 1958–1959
Whatcom County, Washington48.649°N -121.6907°WBaker River (Washington)align=center 91 1959
Grant and Kittitas counties46.8731°N -119.9703°WColumbia Riveralign=center 1,038 2011-2018
Chelan and Douglas counties47.9469°N -119.8653°WColumbia Riveralign=center 851 1967–1969
Wynoochee DamGrays Harbor County, Washington47.3851°N -123.6052°WWynoochee Riveralign=center 12.8Tacoma Power1994
Clark and Cowlitz counties45.9628°N -122.3355°WLewis River (Washington)align=center 134 1953

Wind

See also: Wind power in Washington (state).

Name Location Coordinates Capacity
(MW)
Year
opened
47.0186°N -120.2161°W align=center 273 2006, 2009 [13]
46.3742°N -117.7767°W align=center 211 2007, 2008 [14]
46.7267°N -120.8339°W align=center 205 2007
45.7561°N -120.8086°W align=center 200 2006
45.7561°N -120.8086°W align=center 50 2011
Palouse Wind Farm 47.1558°N -117.3644°W align=center 105 2012
Stateline Wind Farm
(Vansycle Wind)
46.0372°N -118.8067°W align=center 177 2001
46.4019°N -117.8122°W align=center 157 2005, 2008
Harvest Wind Farm 45.8142°N -120.3472°W align=center 99 2009
Nine Canyon Wind Farm 46.1039°N -119.1483°W align=center 99 2002
Goodnoe Hills Wind Farm 45.7794°N -120.5236°W align=center 94 2008
Coastal Energy 46.7939°N -124.0669°W align=center 6 2010
46.4794°N -117.6306°W align=center 342.7 2012 [15]
Juniper Canyon 45.9022°N -120.2072°W align=center 151.2 2011 [16]
Kittitas Valley Wind Farm
(Sagebrush Wind)
47.1539°N -120.6786°W align=center 100.8 2010
Vantage Wind Power Project 46.9542°N -120.1858°W align=center 90 2010 [17]
Linden Ranch 45.7428°N -120.7822°W align=center 50 2010
45.7419°N -120.7256°W align=center 262.4 2009
Windy Point
(Tuolumne Wind)
45.7658°N -120.6519°W align=center 137.6 2009
Tucannon River Wind Farm 46.4739°N -117.5967°W align=center 267 2014 [18]
Swauk Valley Ranch Wind 47.1417°N -120.7542°W align=center 4.3 2012 [19]
Skookumchuck Wind Farm Lewis and Thurston Counties 46.7397°N -122.6372°W align=center 136 2020 [20]

Solar

See also: Solar power in Washington (state). Only utility scale projects larger than 1 MW are listed.

NameLocation Coordinates Capacity
(MWAC)
Year
opened
Adams Nielson Solar Farm 46.9553°N -118.6212°W28 2018[21]
Camas Solar ProjectKittitas County6.72022[22]
Horn Rapids SolarBenton County42020
Lund Hill Solar Project 45.896°N -120.273°W1942022[23]
Penstemon Solar ProjectKittitas County6.72022[24]
Urtica Solar ProjectKittitas County6.72022

Municipal Solid Waste (MSW) Combustion

Former facilities

StationLocationTypeCapacity
(MW)
StatusYear openedYear closed
Elwha DamClallam County, WashingtonHydroelectricalign=center 14.8Demolished19132012
Glines Canyon DamClallam County, WashingtonHydroelectricalign=center 13.3Demolished19272014
Satsop Nuclear Power PlantGrays Harbor County, WashingtonNuclearalign=center 2480CanceledN/A1977
Condit Hydroelectric ProjectKlickitat County, WashingtonHydroelectricalign=center 14.7Demolished19132011

See also

External links

Notes and References

  1. Web site: Washington Electricity Profile . U.S. Energy Information Administration . July 18, 2022.
  2. Web site: Washington Electricity Profile Analysis . U.S. EIA . January 15, 2021.
  3. Originally referred to as the Satsop Combustion Turbine as noted in Grays Harbor Energy Center.
  4. Web site: Alder Dam . Tacoma Public Utilities . January 22, 2021.
  5. Web site: Cowlitz Falls Project . February 7, 2017 . Lewis County Public Utilities District . January 22, 2021.
  6. Web site: Cushman Hydro Project . Tacoma Public Utilities . January 22, 2021.
  7. Web site: Jackson Hydro Project . Snohomish County Public Utilities District . January 22, 2021.
  8. Web site: Lake Chelan Dam . Chelan County Public Utility District . January 22, 2021.
  9. Web site: LaGrande Dam . Tacoma Public Utilities . January 22, 2021.
  10. Web site: Our Energy Mix - Spokane River Project - Long Lake Hydroelectric . Avista Corp. . January 22, 2021.
  11. Web site: Mayfield Dam . Tacoma Public Utilities . January 22, 2021.
  12. Web site: Mossyrock Dam . Tacoma Public Utilities . January 22, 2021.
  13. Web site: U.S. Wind Energy Projects - Washington . Staff . . July 2010 . July 28, 2010 . dead . https://web.archive.org/web/20081231005535/http://www.awea.org/PROJECTS/projects.aspx?s=Washington . December 31, 2008 .
  14. Web site: The Wind Power - Wind Farms. Staff. December 15, 2016.
  15. Web site: Puget Sound Energy. Lower Snake River Wind Facility Fact Sheet. January 16, 2013. dead. https://web.archive.org/web/20120307125608/http://www.pse.com/aboutpse/psenewsroom/MediaKit/054_Lower_Snake_River.pdf. March 7, 2012.
  16. Web site: Juniper Canyon - Phase 1 Renewable Northwest . www.rnp.org . dead . https://web.archive.org/web/20151117030912/http://www.rnp.org/node/juniper-canyon-phase-1 . November 17, 2015.
  17. http://www.rnp.org/node/vantage-wind-energy-project Vantage Wind Energy Project
  18. https://www.portlandgeneral.com/our_company/energy_strategy/power_generation/tucannon_river/default.aspx Tucannon River Wind Farm
  19. http://www.rnp.org/project_map Renewable Project Northwest
  20. Web site: Skookumchuck Wind Facility in Washington is Operational. December 1, 2020. www.southerncompany.com. en.
  21. https://www.gonzaga.edu/news-events/stories/2019/1/11/harvesting-the-sun-lind-solar-farm Adams Nielson Solar Farm
  22. Web site: Form EIA-860 detailed data with previous form data (EIA-860A/860B) . EIA.
  23. https://www.dnr.wa.gov/news/franz-announces-was-first-solar-farm-lease-state-trust-lands-solar-development-klickitat-county Lund Hill Solar Project
  24. Web site: Washington Solar SEIA . August 19, 2023 . www.seia.org . en.
  25. https://my.spokanecity.org/solidwaste/waste-to-energy/ Spokane's Waste to Energy (WTE) Facility