Cogeneration 1
Natural gas power plant · Pima County, Arizona
Nameplate capacity
9.0 MW
Rank in Arizona
#151
of 200 plants
In service since
2002
November 2002
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- University of Arizona
- County
- Pima County
- Generating units
- 1
- Share of state capacity
- 0.02%
- Rank among natural gas plants in Arizona
- #31 of 33
- EIA plant code
- 56229
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| CT1 | Natural Gas Fired Combined Cycle | 9.0 MW | 8.3 MW | 2002 | 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
| Valencia Solar | Solar | 10 MW |
| Black Mountain Solar LLC | Solar | 9.0 MW |
| Tucson - CAVSARP | Solar | 7.2 MW |
| Lake Pleasant WTP | Solar | 6.5 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 9.0 MW solar plant and a 9.0 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