How many power plants does City of Seattle - (WA) operate?

EIA-860M lists 7 operating plants against “City of Seattle - (WA)” for 2026-07, totalling 2 GW of nameplate capacity in 1 state.

Is City of Seattle - (WA) 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.

City of Seattle - (WA) power plants

Every generating plant EIA-860M files against City of Seattle - (WA) for 2026-07: 7 plants, 2 GW of nameplate capacity, across 1 state and 1 energy source.

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: 7
Nameplate capacity: 2 GW
States: 1; WA
Energy sources: 1

City of Seattle - (WA) plants by energy source

Hydro7 plants · 2,049 MW

Full list of City of Seattle - (WA) power plants

Power plants operated by City of Seattle - (WA)

BoundaryConventional Hydroelectric	City of Seattle - (WA)	Pend Oreille	1,159.7	6	1967	Operating
RossConventional Hydroelectric	City of Seattle - (WA)	Whatcom	450	4	1952	Operating
GorgeConventional Hydroelectric	City of Seattle - (WA)	Whatcom	207.3	4	1924	Operating
DiabloConventional Hydroelectric	City of Seattle - (WA)	Whatcom	182.4	4	1936	Operating
Cedar Falls (WA)Conventional Hydroelectric	City of Seattle - (WA)	King	30	2	1921	Operating
South Fork ToltConventional Hydroelectric	City of Seattle - (WA)	King	16.8	1	1995	Operating
NewhalemConventional Hydroelectric	City of Seattle - (WA)	Whatcom	2.3	1	1970	Out of service and NOT expected to return to service in next calendar year

City of Seattle - (WA): FAQ

How many power plants does City of Seattle - (WA) operate?: EIA-860M lists 7 operating plants against “City of Seattle - (WA)” for 2026-07, totalling 2 GW of nameplate capacity in 1 state.
Is City of Seattle - (WA) 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.