Apache Station
Natural gas power plant · Cochise County, Arizona
Nameplate capacity
782 MW
Rank in Arizona
#11
of 200 plants
In service since
1963
February 1963
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Steam Turbine
- Operator
- Arizona Electric Pwr Coop Inc
- County
- Cochise County
- Generating units
- 9
- Share of state capacity
- 1.83%
- Rank among natural gas plants in Arizona
- #6 of 33
- EIA plant code
- 160
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| ST2 | Natural Gas Steam Turbine | 204 MW | 175 MW | 1979 | Operating |
| ST3 | Conventional Steam Coal | 204 MW | 175 MW | 1979 | Operating |
| ST1 | Natural Gas Steam Turbine | 82 MW | 72 MW | 1964 | Standby/Backup: available for service but not normally used |
| GT3 | Natural Gas Fired Combustion Turbine | 79 MW | 60 MW | 1975 | Standby/Backup: available for service but not normally used |
| GT4 | Natural Gas Fired Combustion Turbine | 61 MW | 38 MW | 2002 | Standby/Backup: available for service but not normally used |
| GT5 | Natural Gas Fired Combustion Turbine | 61 MW | 38 MW | 2025 | Operating |
| GT6 | Natural Gas Fired Combustion Turbine | 61 MW | 38 MW | 2025 | Operating |
| GT2 | Natural Gas Fired Combustion Turbine | 20 MW | 19 MW | 1972 | Standby/Backup: available for service but not normally used |
| GT1 | Natural Gas Fired Combustion Turbine | 12 MW | 10 MW | 1963 | Standby/Backup: available for service but not normally used |
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 Arizona
| Coronado | Coal | 822 MW |
| Ocotillo | Natural gas | 806 MW |
| Sonoran Solar Energy | Solar | 750 MW |
| Desert Basin | Natural gas | 745 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 782 MW solar plant and a 782 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 Arizona power plants · What Arizona actually generates