Rock Creek Wind
Wind power plant · Carbon County, Wyoming
Nameplate capacity
590 MW
Rank in Wyoming
#5
of 71 plants
In service since
2025
September 2025
Details
- Primary fuel
- Wind
- Technology
- Onshore Wind Turbine
- Operator
- PacifiCorp
- County
- Carbon County
- Generating units
- 2
- Share of state capacity
- 4.63%
- Rank among wind plants in Wyoming
- #1 of 28
- EIA plant code
- 67769
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| II | Onshore Wind Turbine | 400 MW | 400 MW | 2025 | Operating |
| I | Onshore Wind Turbine | 190 MW | 190 MW | 2025 | 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
| Dave Johnston | Coal | 817 MW |
| Naughton | Natural gas | 707 MW |
| TB Flats | Wind | 503 MW |
| Dry Fork Station | Coal | 484 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 590 MW solar plant and a 590 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