Spindle Hill Energy Center
Natural gas power plant · Weld County, Colorado
Nameplate capacity
420 MW
Rank in Colorado
#15
of 326 plants
In service since
2007
May 2007
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combustion Turbine
- Operator
- Invenergy Services LLC
- County
- Weld County
- Generating units
- 2
- Share of state capacity
- 1.83%
- Rank among natural gas plants in Colorado
- #7 of 30
- EIA plant code
- 56445
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN1 | Natural Gas Fired Combustion Turbine | 210 MW | 135 MW | 2007 | Operating |
| GEN2 | Natural Gas Fired Combustion Turbine | 210 MW | 135 MW | 2007 | 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
| Neptune Energy Center Hybrid | Solar | 450 MW |
| Pueblo Airport Generating Station | Natural gas | 440 MW |
| Blue Spruce Energy Center | Natural gas | 398 MW |
| JM Shafer Generating Station | Natural gas | 397 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 420 MW solar plant and a 420 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