Planned natural gas power plants in Arizona
What EIA-860M's Planned sheet says is coming in Arizona: 4 natural gas power plants totalling 2 GW, each with the in-service year its developer reported and the construction status EIA records. A planned project is not a built one.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Planned projects
- 4
- 22 generating units
- Proposed capacity
- 2 GW
- Earliest in-service year
- 2027
- Latest in-service year
- 2030
Map of planned natural gas power plants in Arizona
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List of planned natural gas power plants in Arizona
| Saddleback Generation StationNatural Gas Fired Combined Cycle | Copia Power | Maricopa | 1,250 | 4 | 2030 | Planned for installation |
| Red HawkNatural Gas Fired Combustion Turbine | Arizona Public Service Co | Maricopa | 392 | 8 | 2027 | Under construction |
| Coolidge Generation StationNatural Gas Fired Combustion Turbine | Salt River Project | Pinal | 297 | 6 | 2027 | Under construction |
| Mohave Energy ParkNatural Gas Fired Combustion Turbine | Arizona Electric Pwr Coop Inc | Mohave | 242 | 4 | 2027 | Regulatory approvals pending. Not under construction |
Where they are in the build
- Under construction2
- Planned for installation1
- Regulatory approvals pending. Not under construction1
Planned natural gas power plants in Arizona: FAQ
- How many natural gas power plants are planned in Arizona?
- 4, for 2 GW of nameplate capacity. These are generators developers have reported to EIA, not generators that exist.
- What do the status letters mean?
- EIA files each planned generator under a status: regulatory approvals pending, under construction at or below half complete, under construction more than half complete, construction complete but not yet in commercial operation, or planned but not yet started. Each row shows its own.
- Do these projects always get built?
- No. EIA keeps a separate Canceled or Postponed sheet, and projects move between the sheets month to month. This page is the Planned sheet for 2026-07 and nothing more.