Nameplate capacity
574 MW
Rank in Arizona
#29
of 200 plants
In service since
1952
July 1952
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Salt River Project
- County
- Maricopa County
- Generating units
- 7
- Share of state capacity
- 1.34%
- Rank among natural gas plants in Arizona
- #20 of 33
- EIA plant code
- 147
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| KY7 | Natural Gas Fired Combined Cycle | 170 MW | 165 MW | 2002 | Operating |
| KY7A | Natural Gas Fired Combined Cycle | 122 MW | 106 MW | 2002 | Operating |
| KY2 | Natural Gas Steam Turbine | 74 MW | 72 MW | 1954 | Out of service and NOT expected to return to service in next calendar year |
| KY5 | Natural Gas Fired Combustion Turbine | 60 MW | 53 MW | 1973 | Operating |
| KY6 | Natural Gas Fired Combustion Turbine | 60 MW | 53 MW | 1973 | Operating |
| KY4 | Natural Gas Fired Combustion Turbine | 53 MW | 59 MW | 1971 | Operating |
| KY1 | Natural Gas Steam Turbine | 35 MW | 34 MW | 1952 | Out of service and NOT expected to return to service in next calendar year |
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
| Harquahala 2 | Battery storage | 600 MW |
| Sun Streams 4 | Solar | 600 MW |
| H Wilson Sundt Generating Station | Natural gas | 529 MW |
| West Camp Wind Farm | Wind | 500 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 574 MW solar plant and a 574 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