Nameplate capacity
806 MW
Rank in Arizona
#10
of 200 plants
In service since
1972
May 1972
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combustion Turbine
- Operator
- Arizona Public Service Co
- County
- Maricopa County
- Generating units
- 7
- Share of state capacity
- 1.89%
- Rank among natural gas plants in Arizona
- #5 of 33
- EIA plant code
- 116
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GT3 | Natural Gas Fired Combustion Turbine | 140 MW | 104 MW | 2019 | Operating |
| GT4 | Natural Gas Fired Combustion Turbine | 140 MW | 102 MW | 2019 | Operating |
| GT5 | Natural Gas Fired Combustion Turbine | 140 MW | 104 MW | 2019 | Operating |
| GT6 | Natural Gas Fired Combustion Turbine | 140 MW | 101 MW | 2019 | Operating |
| GT7 | Natural Gas Fired Combustion Turbine | 140 MW | 104 MW | 2019 | Operating |
| GT1 | Natural Gas Fired Combustion Turbine | 53 MW | 50 MW | 1972 | Operating |
| GT2 | Natural Gas Fired Combustion Turbine | 53 MW | 50 MW | 1973 | 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 Arizona
| Hoover Dam (AZ) | Hydro | 1,039 MW |
| Coronado | Coal | 822 MW |
| Apache Station | Natural gas | 782 MW |
| Sonoran Solar Energy | Solar | 750 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 806 MW solar plant and a 806 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