How many power plants does Columbia Basin Hydropower operate?

EIA-860M lists 5 operating plants against “Columbia Basin Hydropower” for 2026-07, totalling 129 MW of nameplate capacity in 1 state.

Is Columbia Basin Hydropower 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.

Columbia Basin Hydropower power plants

Every generating plant EIA-860M files against Columbia Basin Hydropower for 2026-07: 5 plants, 129 MW 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: 5
Nameplate capacity: 129 MW
States: 1; WA
Energy sources: 1

Columbia Basin Hydropower plants by energy source

Hydro5 plants · 129 MW

Full list of Columbia Basin Hydropower power plants

Power plants operated by Columbia Basin Hydropower

Summer Falls Power PlantConventional Hydroelectric	Columbia Basin Hydropower	Grant	92	2	1985	Operating
Main Canal HeadworksConventional Hydroelectric	Columbia Basin Hydropower	Grant	26.8	1	1987	Operating
Russell D SmithConventional Hydroelectric	Columbia Basin Hydropower	Adams	6.1	1	1982	Operating
Potholes East Canal 66.0Conventional Hydroelectric	Columbia Basin Hydropower	Franklin	2.3	1	1985	Operating
Eltopia Branch Canal 4.6Conventional Hydroelectric	Columbia Basin Hydropower	Franklin	2.2	1	1983	Operating

Columbia Basin Hydropower: FAQ

How many power plants does Columbia Basin Hydropower operate?: EIA-860M lists 5 operating plants against “Columbia Basin Hydropower” for 2026-07, totalling 129 MW of nameplate capacity in 1 state.
Is Columbia Basin Hydropower 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.