Comanche (CO)
Comanche (CO) is a coal plant in Pueblo County, Colorado, operated by Public Service Co of Colorado. It ranks second by nameplate capacity among Colorado’s 320 power plants. Its biggest unit, rated at 857 MW, is the largest single generator in Colorado. The operator has reported planned retirement dates for 1,253 MW of it, between 2026 and 2030. Ownership is shared by three organizations; the largest stake, 46%, is held by Public Service Co of Colorado.
Nameplate capacity, 2025
1,253 MW
1,080 MW net summer capacity
2 operable units
- Coal steam1,253 MW100%
Unit by unit, 1973 to 2025
operating in 2025retiredreported planned retirementbar height follows unit size
Among Colorado’s plants
Largest plants in the state by nameplate capacity, with the plants ranked next to this one.
- 1Craig (CO)1,428 MW
- 2Comanche (CO)this plant
- 3Fort St Vrain1,148 MW
- 4Cherokee1,006 MW
Other rankings
- All US power plants
- 203rd of 14,286
- US coal plants
- 66th of 195
- Coal plants in Colorado
- 2nd of 5
- Plants in the WAPA Rocky Mountain balancing area
- 3rd of 166
- Plants run by Public Service Co of Colorado
- 1st of 22
Operable units
By the year its oldest working unit started, it is the second-oldest of Colorado’s 5 coal plants.
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 2 | Coal steam | 396 MW | 330 MW | 1975 | Operating, retirement planned for 2026 |
| 3 | Coal steam | 857 MW | 750 MW | 2010 | Operating, retirement planned for 2030 |
Retired units
Retired capacity here totals 382 MW, mostly coal units.
| Unit | Technology | Nameplate | In service |
|---|---|---|---|
| 1 | Coal steam | 382 MW | 1973–2022 |
Who owns it
Shares are weighted by the nameplate capacity of each unit an owner holds.
| Owner | Share of capacity |
|---|---|
| Public Service Co of Colorado | 45.6% |
| CORE Electric Cooperative | 17.3% |
| Holy Cross Electric Assn, Inc | 5.5% |
| Public Service Co of Colorado (sole owner of the other units) | 31.6% |
Grid and site
- Balancing area
- WAPA Rocky Mountain
- Reliability region
- Western Electricity Coordinating Council
- Highest grid connection voltage
- 345 kV
- Water source
- Arkansas River
- Nearest town on record
- Pueblo
- Operator type
- Utility
- Coordinates
- 38.208°N, 104.575°W
Closest plants
| Plant | Runs on | Capacity | Distance |
|---|---|---|---|
| Comanche Solar | Solar | 120 MW | 0.5 mi southeast |
| Bighorn Solar 1 | Solar | 240 MW | 1.2 mi west |
| Vestas Towers America, Inc. | Wind | 1.8 MW | 3.5 mi southwest |
| CSWIND America Inc. | Solar | 12.3 MW | 3.6 mi southwest |
| Sun Mountain Solar 1 | Solar | 200 MW | 3.6 mi southeast |
| Rocky Mountain Solar | Solar | 325 MW | 3.8 mi south |
| Airport Industrial | Oil and petroleum | 10 MW | 5.8 mi northeast |
| CEC Solar #1117, LLC | Solar | 1.5 MW | 5.9 mi northeast |