1st largest plant in Wyoming · 52nd nationally
Jim Bridger is a coal power plant in Wyoming with a nameplate capacity of 2,326 MW. It generates roughly 8.3M MWh per year — enough to power about 792,388 average U.S. homes.
Its capacity factor of 41% puts it in the middle range — running steadily but not full-time. At 2359 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (2,326 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.
| Plant Name | Jim Bridger |
|---|---|
| Operator | Pacificorp |
| City | Point Of Rocks |
| County | Sweetwater County |
| State | Wyoming |
| ZIP | 82942 |
| Coordinates | 41.73780, -108.78750 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 2 | Natural Gas Steam Turbine | Natural Gas | 586 MW | Operating | 1975 |
| 4 | Conventional Steam Coal | Subbituminous Coal | 584 MW | Operating | 1979 |
| 1 | Natural Gas Steam Turbine | Natural Gas | 578 MW | Operating | 1974 |
| 3 | Conventional Steam Coal | Subbituminous Coal | 578 MW | Operating | 1976 |
| Owner | Location | Share |
|---|---|---|
| Pacificorp | Portland, OR | 6667.0% |
| Idaho Power Co | Boise, ID | 3333.0% |
Ownership reported to EIA Form 860. Percentages reflect reported generator-level ownership share, averaged when a plant has multiple generators.
| CO₂ | 9.8M metric tons |
|---|---|
| SO₂ | 6.7k metric tons |
| NOₓ | 5.5k metric tons |
| CO₂ Rate | 2359 lb/MWh |
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
| NERC Region | WECC |
|---|---|
| Balancing Authority | Pacificorp - East |
Coal plants burn pulverized coal to boil water and spin steam turbines. They emit substantial CO₂, SO₂, and NOₓ along with mercury and particulate matter. Modern units include scrubbers and selective catalytic reduction; older units are increasingly being retired or converted to natural gas as economics shift.