How many power plants does Puget Sound Energy operate?

EIA-860M lists 18 operating plants against “Puget Sound Energy Inc” for 2026-07, totalling 3 GW of nameplate capacity in 2 states.

Is Puget Sound Energy the owner of these plants?

EIA-860M names one reporting entity per generator. That entity operates the plant on the survey; ownership can sit with a parent, a partnership or a tax-equity structure that the form does not record.

Why are affiliates listed separately?

Because EIA files them separately. Rolling subsidiaries into a parent would need an ownership map EIA-860M does not publish, so this page does not invent one.

Puget Sound Energy power plants

Every generating plant EIA-860M files against Puget Sound Energy for 2026-07: 18 plants, 3 GW of nameplate capacity, across 2 states and 5 energy sources.

EIA files this entity as “Puget Sound Energy Inc”.

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: 18
Nameplate capacity: 3 GW
States: 2; MT, WA
Energy sources: 5

Puget Sound Energy plants by energy source

Battery1 plants · 2 MW
Hydro4 plants · 260 MW
Natural gas8 plants · 1,932 MW
Petroleum1 plants · 3 MW
Wind4 plants · 1,020 MW

Full list of Puget Sound Energy power plants

Power plants operated by Puget Sound Energy Inc

Fredonia (WA)Natural Gas Fired Combustion Turbine	Puget Sound Energy Inc	Skagit	376	4	1984	Standby/Backup
Lower Snake River Wind Energy ProjectOnshore Wind Turbine	Puget Sound Energy Inc	Garfield	342.7	1	2012	Operating
Mint Farm Generating StationNatural Gas Fired Combined Cycle	Puget Sound Energy Inc	Cowlitz	319	2	2008	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
Wild Horse2 technologies	Puget Sound Energy Inc	Kittitas	273.1	3	2006	Operating
Beaver Creek Wind FacilityOnshore Wind Turbine	Puget Sound Energy Inc	Stillwater	248	1	2025	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
Hopkins Ridge WindOnshore Wind Turbine	Puget Sound Energy Inc	Columbia	156.6	2	2005	Operating
Sumas Power PlantNatural Gas Fired Combined Cycle	Puget Sound Energy Inc	Whatcom	125.5	2	1993	Operating
Upper BakerConventional Hydroelectric	Puget Sound Energy Inc	Whatcom	104.8	2	1959	Operating
Lower BakerConventional Hydroelectric	Puget Sound Energy Inc	Skagit	103.9	2	1960	Operating
Snoqualmie 2Conventional Hydroelectric	Puget Sound Energy Inc	King	38.7	2	1957	Operating
SnoqualmieConventional Hydroelectric	Puget Sound Energy Inc	King	12.8	5	1898	Operating
Crystal MountainPetroleum Liquids	Puget Sound Energy Inc	Pierce	2.7	1	1969	Standby/Backup
Glacier Battery StorageBatteries	Puget Sound Energy Inc	Whatcom	2	1	2016	Operating

Puget Sound Energy: FAQ

How many power plants does Puget Sound Energy operate?: EIA-860M lists 18 operating plants against “Puget Sound Energy Inc” for 2026-07, totalling 3 GW of nameplate capacity in 2 states.
Is Puget Sound Energy the owner of these plants?: EIA-860M names one reporting entity per generator. That entity operates the plant on the survey; ownership can sit with a parent, a partnership or a tax-equity structure that the form does not record.
Why are affiliates listed separately?: Because EIA files them separately. Rolling subsidiaries into a parent would need an ownership map EIA-860M does not publish, so this page does not invent one.