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92.4 MW Hydro operating in Power, ID — Idaho Power Company
92.4 MW
Nameplate Capacity
3
Generators
units
Conventional Hydroelectric
Technology
1978
Operating Since
Coordinates
42.7778, -112.8764
County
Power, ID
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Idaho Power Co | Idaho Power | — |
| Owner(s) | Idaho Power Co | IDACORP | — |
| Status | Operating | operating | — |
The American Falls Dam is a concrete gravity-type dam in the western United States, located near American Falls, Idaho, on river mile 714.7 of the Snake River. The dam and reservoir are a part of the Minidoka Project on the Snake River Plain and are used primarily for flood control, irrigation, and recreation. When the original dam was built in the 1920s by the U.S. Bureau of Reclamation, the residents of American Falls were forced to relocate three-quarters of their town to make room for the reservoir.
Read more on WikipediaThe American Falls hydroelectric plant is located in Power County, Idaho. The plant has a total capacity of 92.4 MW across three generators, and it began operating in 1978. The primary fuel source is water (WAT), and the plant utilizes conventional hydroelectric technology. The owner and operator is Idaho Power Co, a subsidiary of IDACORP. American Falls ranks as the 6th largest of 76 power plants in Idaho, and 205th out of 1464 plants nationally.
In the most recent year with available data, American Falls generated 242,769 MWh, achieving a capacity factor of 29.8%. The plant operates within the Idaho Power Company balancing authority, and is part of the Western Electricity Coordinating Council (WECC) NERC region. Financial data indicates an installed cost of $556.77 per kW. The plant's operations have been mentioned in four news articles, covering topics such as hazards, regulatory matters, and grid issues.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
0 MWh
Latest Month
242.8K MWh
Annual Generation
29.8%
Capacity Factor
Run-of-river hydro · Idaho Power Company · Data from 2015–2024
$663/kW
Installed Cost
$8.0/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Market Position
LMP Node
AFPR_1_TOT_GEN-APND
Pricing Hub
—
Last updated 2026-03-14
View all 5 articlesNo ask pi reports yet for this entity.
ask pi about American FallsIdaho Power Company (IPCO)
Grid Voltage
138.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility