Afton Generating Station
Natural gas power plant · Dona Ana County, New Mexico
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Public Service Co of NM
- County
- Dona Ana County
- Generating units
- 2
- Share of state capacity
- 1.60%
- Rank among natural gas plants in New Mexico
- #5 of 19
- EIA plant code
- 55210
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 0001 | Natural Gas Fired Combined Cycle | 177 MW | 144 MW | 2002 | Operating |
| 0002 | Natural Gas Fired Combined Cycle | 110 MW | 95 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 New Mexico
| San Juan Solar I | Solar | 300 MW |
| El Cabo Wind | Wind | 298 MW |
| Tecolote Wind LLC | Wind | 272 MW |
| Roosevelt County | Wind | 250 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 287 MW solar plant and a 287 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 New Mexico power plants · What New Mexico actually generates