Jim Bridger
Sweetwater County, Wyoming · EIA plant ID 8066 · Operator: PacifiCorp
Nameplate2,326MWSummer 2,119 MW
Generators4in service
Net generation7,252GWh12 mo to Aug 2026
Capacity factor39%gas/coal/oil units, summer MW
Heat rate11,405Btu/kWhfossil units, electric fuel, HHV
First online1974Runs as baseload
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 15,266.4 | 82.2% | 10,450 |
| 2002 | 14,593.1 | 78.6% | 10,310 |
| 2003 | 14,494.7 | 78.0% | 10,715 |
| 2004 | 14,771.2 | 79.3% | 10,595 |
| 2005 | 14,789.5 | 79.6% | 10,582 |
| 2006 | 15,053.9 | 81.1% | 10,396 |
| 2007 | 15,119.4 | 81.4% | 10,352 |
| 2008 | 15,303.4 | 82.2% | 10,350 |
| 2009 | 15,188.2 | 81.9% | 10,140 |
| 2010 | 14,828.9 | 79.9% | 10,232 |
| 2011 | 12,771.6 | 68.8% | 10,392 |
| 2012 | 13,625.1 | 73.5% | 10,308 |
| 2013 | 14,817 | 80.1% | 10,217 |
| 2014 | 14,015.9 | 75.8% | 10,285 |
| 2015 | 13,439.3 | 72.7% | 10,404 |
| 2016 | 11,685.8 | 63.0% | 10,445 |
| 2017 | 11,642.8 | 63.0% | 10,483 |
| 2018 | 10,966.7 | 59.3% | 10,512 |
| 2019 | 11,255 | 60.5% | 10,568 |
| 2020 | 10,458.6 | 56.2% | 10,973 |
| 2021 | 10,342.8 | 55.7% | 10,817 |
| 2022 | 10,662 | 57.4% | 10,778 |
| 2023 | 8,320.1 | 44.8% | 11,150 |
| 2024 | 7,806.8 | 41.9% | 10,923 |
| 2025 | 7,596.8 | 40.9% | 11,255 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Natural Gas Steam Turbine | ST | 577.9 | 531 | Nov 1974 | Operating | — | coming soon |
| 2 | Natural Gas Steam Turbine | ST | 586.2 | 539 | Dec 1975 | Operating | — | coming soon |
| 3 | Conventional Steam Coal | ST | 577.9 | 523 | Sep 1976 | Operating | — | coming soon |
| 4 | Conventional Steam Coal | ST | 584 | 526 | Nov 1979 | Operating | — | coming soon |
Owner / operator
Operator: PacifiCorp. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| PacifiCorp | 66.7% | 1,551 MW |
| Idaho Power Co | 33.3% | 775 MW |
Nearby plants
Within 80 km.
| Simplot Phosphates | 12 MW | 36 km |
| Sweetwater Solar | 92 MW | 75.4 km |