Nameplate capacity
108 MW
Rank in Arizona
#82
of 200 plants
In service since
1972
December 1972
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combustion Turbine
- Operator
- Tucson Electric Power Co
- County
- Pima County
- Generating units
- 4
- Share of state capacity
- 0.25%
- Rank among natural gas plants in Arizona
- #27 of 33
- EIA plant code
- 6088
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | 27 MW | 25 MW | 1972 | Operating |
| 2 | Natural Gas Fired Combustion Turbine | 27 MW | 25 MW | 1972 | Operating |
| 3 | Natural Gas Fired Combustion Turbine | 27 MW | 25 MW | 1972 | Operating |
| 4 | Natural Gas Fired Combustion Turbine | 27 MW | 20 MW | 2001 | 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
| Sierra Pinta BESS | Battery storage | 113 MW |
| Valencia | Natural gas | 108 MW |
| Central Line Solar, LLC | Solar | 100 MW |
| East Line Solar | Solar | 100 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 108 MW solar plant and a 108 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