Maricopa Solar
Solar power plant · Maricopa County, Arizona
Nameplate capacity
550 MW
Rank in Arizona
#30
of 205 plants
In service since
2026
July 2026
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- —
- County
- Maricopa County
- Generating units
- 1
- Share of state capacity
- 1.22%
- Rank among solar plants in Arizona
- #5 of 119
- EIA plant code
- 69684
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 70124 | Solar Photovoltaic | 550 MW | 550 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
| Sun Streams 4 | Solar | 600 MW |
| Kyrene | Natural gas | 596 MW |
| H Wilson Sundt Generating Station | Natural gas | 529 MW |
| Centennial Flats | Solar | 511 MW |
About this data
From EIA’s inventory of operable generators, August 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 550 MW solar plant and a 550 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