Swan Falls — Plant Summary
- EIA Plant ID
- 819
- Capacity
- 27.2 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Ada, ID
- Operating Since
- 1994
- Generators
- 2
- Operator
- Idaho Power Co
- Parent Company
- IDACORP
- Annual Generation
- 121,927 MWh
- Capacity Factor
- 51.0%
- Balancing Authority
- Idaho Power Company
- ISO/RTO
- —
- NERC Region
- WECC
Swan Falls
OperatingHydro
Ranked #18 of 76 Hydro plants in ID#423 of 1454 nationally
27.2 MW Hydro operating in Ada, ID — Idaho Power Company
EIAWD
27.2 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1994
Operating Since
Location
Coordinates
43.2435, -116.3791
County
Ada, ID
Nearby Plants
- Murphy Flat SolarSolar20 MW · 6.3 km
- Melba BESSBESS2 MW · 20.5 km
- ID SolarSolar40 MW · 21.9 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Idaho Power Co | Idaho Power | — |
| Owner(s) | Idaho Power Co | IDACORP | — |
| Status | Operating | — | — |
Ownership Chain
About
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
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Idaho Power Company
Grid Voltage
138 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
9.5K MWh
Latest Month
121.9K MWh
Annual Generation
51.0%
Capacity Factor
Jan 2022 – Dec 2024
Financial DataBeta
Source: FERC Form 1HIGH
$2,940/kW
Installed Cost
$22.9/MWh
Operating Cost
Idaho Power Company
Reporting Utility
Cumulative Installed Cost
Per-Unit Cost Trends
Pricing & Market Data
Market Position
LMP Node
SWPO_1_TOT_GEN-APND
Pricing Hub
—
News & Articles (10)Beta
Regulatory·permitting
Idaho Power Company; Notice of Intent To File License Application, Filing of Pre-Application Document, and Approving Use of the Traditional Licensing Process
Idaho Power Company (other)
Federal Register (FERC)·3 days ago
General
Tony Ray Courchaine Obituary May 23, 2024
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General
Don’t Tread On Me: Liberating the Lower Snake River
A look at the economic, environmental, cultural, and sociopolitical impacts of the Lower Snake River Dams & possible solutions.
ArcGIS StoryMaps·2 years ago
Industry·technology
Irrigation canal hydropower: A case study
Hydroelectric generating plants on irrigation canal systems are focused more on generating power (and selling it) than they are on serving the irrigation needs...
Ag Proud·2 years ago
Last updated 2026-03-25
View all 10 articles