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27.2 MW Hydro operating in Ada, ID
27.2 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1994
Operating Since
Coordinates
43.2435, -116.3791
County
Ada, ID
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Idaho Power Co | Idaho Power | — |
| Owner(s) | Idaho Power Co | IDACORP | — |
| Status | Operating | — | — |
The Swan Falls hydroelectric plant is located in Ada County, Idaho. The plant has a total capacity of 27.2 MW across two generators, and it began operating in 1994. Idaho Power Company operates the facility, which is owned by IDACORP. Swan Falls utilizes conventional hydroelectric technology with water (WAT) as its primary fuel source. The plant is ranked 18th out of 76 power plants in Idaho and 428th out of 1464 nationally.
In the most recent year with available data, Swan Falls generated 121,927 MWh of electricity, achieving a capacity factor of 51.0%. The plant operates within the Idaho Power Company balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Financial data indicates an installed cost of $2,857.66 per kW.
Generated from EIA, GEM, and public data sources
Grid Region
Mountain West
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Idaho Power Company (IPCO)
Grid Voltage
138.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
9.5K MWh
Latest Month
121.9K MWh
Annual Generation
51.0%
Capacity Factor
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Run-of-river hydro · Idaho Power Company · Data from 2015–2024
$2,940/kW
Installed Cost
$22.9/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
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Market Position
LMP Node
SWPO_1_TOT_GEN-APND
Pricing Hub
—
175 buyers • 333 active contracts
+ 170 more offtakers in the full bridge. Top 5 shown.
Browse source data on FERC EQRLast updated 2026-03-26
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