Nameplate capacity
64 MW
Rank in Arizona
#99
of 200 plants
In service since
1971
June 1971
Details
- Primary fuel
- Hydro
- Technology
- Hydroelectric Pumped Storage
- Operator
- Salt River Project
- County
- Maricopa County
- Generating units
- 2
- Share of state capacity
- 0.15%
- Rank among hydro plants in Arizona
- #5 of 11
- EIA plant code
- 148
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| MF2 | Hydroelectric Pumped Storage | 54 MW | 57 MW | 1971 | Operating |
| MF1 | Conventional Hydroelectric | 9.2 MW | 12 MW | 2026 | 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
| Gila Bend Hybrid | Solar | 68 MW |
| Poseidon Wind, LLC | Wind | 65 MW |
| Dry Lake Wind LLC | Wind | 63 MW |
| Yuma Cogeneration Associates | Natural gas | 63 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 64 MW solar plant and a 64 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