Twin Buttes II Wind
Wind power plant · Prowers County, Colorado
Nameplate capacity
75 MW
Rank in Colorado
#69
of 326 plants
In service since
2017
December 2017
Details
- Primary fuel
- Wind
- Technology
- Onshore Wind Turbine
- Operator
- Avangrid Power LLC
- County
- Prowers County
- Generating units
- 1
- Share of state capacity
- 0.33%
- Rank among wind plants in Colorado
- #22 of 33
- EIA plant code
- 61040
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| WT1 | Onshore Wind Turbine | 75 MW | 75 MW | 2017 | 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 Colorado
| Pioneer Solar (CO), LLC | Solar | 80 MW |
| Hunter Solar, LLC (CO) | Solar | 75 MW |
| Twin Buttes Wind Project | Wind | 75 MW |
| Spring Canyon Expansion Wind Energy Ctr | Wind | 63 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 75 MW solar plant and a 75 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 Colorado power plants · What Colorado actually generates