Jim Bridger — Plant Summary
- EIA Plant ID
- 8066
- Capacity
- 2326 MW
- Primary Fuel
- Natural Gas
- Technology
- Conventional Steam Coal, Natural Gas Steam Turbine
- Status
- Operating
- Location
- Sweetwater, WY
- Operating Since
- 1974
- Generators
- 4
- Operator
- PacifiCorp
- Parent Company
- IDACORP
- Annual Generation
- 7,596,779 MWh
- Capacity Factor
- 37.2%
- Balancing Authority
- PacifiCorp - East
- ISO/RTO
- —
- NERC Region
- WECC
Jim Bridger
OperatingNatural GasSub. CoalHybrid
Ranked #1 of 10 Natural Gas plants in WY#14 of 2009 nationally
2326 MW Conventional Steam Coal (1162 MW) + Natural Gas Steam Turbine (1164 MW) operating in Sweetwater, WY — PacifiCorp - East
EIAWD
2,326 MW
Nameplate Capacity
4
Generators
units
Hybrid (2)
Technology
Conventional Steam Coal + Natural Gas Steam Turbine
1974
Operating Since
Location
Coordinates
41.7378, -108.7875
County
Sweetwater, WY
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | PacifiCorp | Idaho Power | — |
| Owner(s) | Idaho Power Co, PacifiCorp | IDACORP | — |
| Status | Operating | — | — |
Ownership Chain
About
Jim Bridger Steam Plant is a coal and gas-fired power plant in Wyoming.
Read more on WikipediaThe Jim Bridger power plant is located in Sweetwater County, Wyoming. It is owned by IDACORP and operated by PacifiCorp. The plant has a total capacity of 2326 MW across 4 generators, making it the largest of 4 power plants in Wyoming and ranking it 18th out of 945 plants nationally. The plant began operating in 1974 and utilizes both conventional steam coal and natural gas steam turbine technologies, classifying it as a hybrid plant. The primary fuel source is natural gas.
In the latest annual reporting period, Jim Bridger generated 7,596,779 MWh of electricity, achieving a capacity factor of 37.2%. The plant operates within the PacifiCorp - East balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Financial data indicates an installed cost of $814.99 per kW, based on FERC and FERC EQ data. The plant also has a PPA price of $10.78 per MWh.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
PacifiCorp - East
Grid Voltage
345 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
472.3K MWh
Latest Month
7.6M MWh
Annual Generation
37.2%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: FERC Form 1, FERC Electric Quarterly ReportsHIGH
$10.8/MWh
PPA Price
PacifiCorp
Contract Seller
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
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 (applicant)
Federal Register (FERC)·3 days ago
Regulatory·federal policy
Wyoming: Coal Comes Back In Sweetwater County
W eeks before a federal shutdown swept the nation, the U.S. Department of the Interior (DOI) announced a strategic move toward accelerating what Secretary...
U.S. Department of the Interior (regulator)
Site Selection·3 months ago
Industry·other
Wyoming power plant booming with suspected UFO, drone sightings — but still no answers after over a year
Fleets of drones and suspected UFOs have been spotted hovering over a Wyoming power plant for more than a year, while a local sheriff's...
New York Post·3 months ago
Industry·other
Wyoming power plant booming with suspected UFO, drone sightings — but still no answers after over a year
Fleets of drones and suspected UFOs have been spotted hovering over a Wyoming power plant for more than a year, while a local sheriff's...
AOL.com·3 months ago
Last updated 2026-03-25
View all 10 articles