Dave Johnston
Coal power plant · Converse County, Wyoming
Nameplate capacity
817 MW
Rank in Wyoming
#3
of 71 plants
In service since
1959
February 1959
Details
- Primary fuel
- Coal
- Technology
- Conventional Steam Coal
- Operator
- PacifiCorp
- County
- Converse County
- Generating units
- 4
- Share of state capacity
- 6.41%
- Rank among coal plants in Wyoming
- #2 of 10
- EIA plant code
- 4158
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 4 | Conventional Steam Coal | 360 MW | 330 MW | 1972 | Operating |
| 3 | Conventional Steam Coal | 230 MW | 220 MW | 1964 | Operating |
| 1 | Conventional Steam Coal | 114 MW | 93 MW | 1959 | Operating |
| 2 | Conventional Steam Coal | 114 MW | 102 MW | 1961 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Wyoming
| Jim Bridger | Natural gas | 2,326 MW |
| Laramie River Station | Coal | 1,863 MW |
| Naughton | Natural gas | 707 MW |
| Rock Creek Wind | Wind | 590 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 817 MW solar plant and a 817 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Wyoming power plants · What Wyoming actually generates