Boysen — Plant Summary
- EIA Plant ID
- 505
- Capacity
- 15 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Fremont, WY
- Operating Since
- 1952
- Generators
- 2
- Operator
- U S Bureau of Reclamation
- Parent Company
- —
- Annual Generation
- 70,298 MWh
- Capacity Factor
- 53.4%
- Balancing Authority
- Western Area Power Administration UGP West
- ISO/RTO
- —
- NERC Region
- WECC
Boysen
OperatingHydro
Ranked #7 of 16 Hydro plants in WY#543 of 1454 nationally
15 MW Hydro operating in Fremont, WY — Western Area Power Administration UGP West
EIAWD
15 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1952
Operating Since
Location
Coordinates
43.4179, -108.1775
County
Fremont, WY
Ownership & Operator
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | U S Bureau of Reclamation | — | United States Bureau of Reclamation |
| Owner(s) | U S Bureau of Reclamation | — | United States Bureau of Reclamation |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The Boysen Dam is a rockfill dam on the Wind River in the U.S. state of Wyoming. The dam lies at the head of Wind River Canyon through the Owl Creek Mountains in western Wyoming and creates Boysen Reservoir. It is owned by the U.S. Bureau of Reclamation and furnishes irrigation water supply to the Bighorn Basin as well as providing flood control and hydroelectric power.
Read more on WikipediaBoysen is a 15 MW hydroelectric power plant located in Fremont County, Wyoming. The plant, which began operating in 1952, is owned and operated by the U.S. Bureau of Reclamation. It utilizes conventional hydroelectric technology with two generators and its primary fuel source is water (WAT). Boysen is connected to the Western Area Power Administration UGP West balancing authority within the Western Electricity Coordinating Council (WECC) NERC region.
In the most recent year of record, Boysen generated 70,298 MWh of electricity, achieving a capacity factor of 53.4%. The plant is ranked as the 7th largest in Wyoming out of 16 plants and 555th nationally out of 1464 plants. There have been two news articles related to the plant, both categorized under hazards. A Wikipedia extract is available for the plant.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Western Area Power Administration UGP West
Grid Voltage
115 kV
Regulatory Status
RE
Entity Type
Federal
Sector
Electric Utility
Generation
3.6K MWh
Latest Month
70.3K MWh
Annual Generation
53.4%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
General
For Wyoming Collectors, Vintage Glass Power Line Insulators Are Prized Finds
Those funky glass blobs that used to hang on and around power lines are highly prized by Wyoming collectors. These vintage glass insulators...
Cowboy State Daily·10 months ago
General
Fantastic Fishing: 2025 Fishing Forecast
Whether you pursue trout, walleye, kokanee salmon or even channel catfish, Wyoming has angling opportunities for you.
Wyoming Game and Fish (.gov)·10 months ago
Hazards·flooding
There’s something in the water – Historical floods
The effects of the flood were felt throughout Fremont County from Dubois to Lysite and north into the Big Horn Basin, as told in newspapers of the era.
Fremont County (other)
County 10·1 years ago
General
Boysen State Park’s Abandoned Tunnel Is Last Reminder Of Fierce Railroad Fight
A crumbling abandoned tunnel in Boysen State Park is all that's left of one man's fierce fight with the railroad in the early 1900s.
Cowboy State Daily·1 years ago
Last updated 2026-03-26
View all 10 articles