Where is American Falls?

In Power County, Idaho (ID). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.

How big is American Falls?

92 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.

Who owns American Falls?

EIA-860M names Idaho Power Co as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.

Is this the same as American Falls LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Idaho Power Co here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "American Falls LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is American Falls still running?

EIA-860M files it as "Standby/Backup" for 2026-07. Statuses change monthly, and this page follows the monthly release.

American Falls

American Falls is a 92 MW hydroelectric power plant in Power County, Idaho, operated by Idaho Power Co. EIA-860M lists 3 generating units here. Its units entered service in 1978.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Nameplate capacity: 92.4 MW; 86.9 MW net summer
Generating units: 3
In service: 1978
EIA plant ID: 809

Where it is

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County: Power County, Idaho
Coordinates: 42.7778, -112.8764
Balancing authority: IPCO
Sector: Electric Utility

Units, technology and status

Operator of record: Idaho Power Co
Primary energy source: Hydro
Technologies: Conventional Hydroelectric
Status: Standby/Backup (2) · Out of service but expected to return to service in next calendar year (1)

Every plant Idaho Power Co reports to EIA →

American Falls: FAQ

Where is American Falls?: In Power County, Idaho (ID). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is American Falls?: 92 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
Who owns American Falls?: EIA-860M names Idaho Power Co as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as American Falls LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Idaho Power Co here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "American Falls LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is American Falls still running?: EIA-860M files it as "Standby/Backup" for 2026-07. Statuses change monthly, and this page follows the monthly release.