How many power plants does Avista operate?

EIA-860M lists 13 operating plants against “Avista Corp” for 2026-07, totalling 2 GW of nameplate capacity in 4 states.

Is Avista 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.

Avista power plants

Every generating plant EIA-860M files against Avista for 2026-07: 13 plants, 2 GW of nameplate capacity, across 4 states and 3 energy sources.

EIA files this entity as “Avista Corp”.

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: 13
Nameplate capacity: 2 GW
States: 4; ID, MT, OR, WA
Energy sources: 3

Avista plants by energy source

Biomass1 plants · 58 MW
Hydro8 plants · 943 MW
Natural gas4 plants · 540 MW

Full list of Avista power plants

Power plants operated by Avista Corp

Noxon RapidsConventional Hydroelectric	Avista Corp	Sanders	487.8	5	1959	Operating
Coyote Springs IINatural Gas Fired Combined Cycle	Avista Corp	Morrow	287	2	2003	Operating
Cabinet GorgeConventional Hydroelectric	Avista Corp	Bonner	265.2	4	1952	Operating
RathdrumNatural Gas Fired Combustion Turbine	Avista Corp	Kootenai	166.4	2	1994	Operating
Long LakeConventional Hydroelectric	Avista Corp	Lincoln	70	4	1915	Operating
Northeast (WA)Natural Gas Fired Combustion Turbine	Avista Corp	Spokane	61.8	1	1978	Operating
Kettle Falls Generating Station2 technologies	Avista Corp	Stevens	57.9	2	1983	Operating
Little Falls (WA)Conventional Hydroelectric	Avista Corp	Lincoln	43.2	4	1910	Operating
Nine MileConventional Hydroelectric	Avista Corp	Spokane	37.6	4	1908	Operating
Boulder ParkNatural Gas Internal Combustion Engine	Avista Corp	Spokane	24.6	6	2002	Operating
Monroe StreetConventional Hydroelectric	Avista Corp	Spokane	14.8	1	1992	Operating
Post FallsConventional Hydroelectric	Avista Corp	Kootenai	14.5	6	1906	Operating
Upper FallsConventional Hydroelectric	Avista Corp	Spokane	10	1	1922	Operating

Avista: FAQ

How many power plants does Avista operate?: EIA-860M lists 13 operating plants against “Avista Corp” for 2026-07, totalling 2 GW of nameplate capacity in 4 states.
Is Avista 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.