Power plants planned and retiring in Arizona
Arizona plans 15,166 MW, 36% of its 41,591 MW in service (6th of 51). 6,544 MW is being built or tested; storage leads at 6,797 MW.
Arizona: planned against running
Arizona planned, by fuel
- Solar 6,435 MW (42%)
- Storage 6,797 MW (45%)
- Natural gas 1,934 MW (13%)
Arizona operating, by fuel
- Solar 8,537 MW (21%)
- Storage 6,862 MW (16%)
- Wind 1,734 MW (4%)
- Natural gas 15,131 MW (36%)
- Coal 2,556 MW (6%)
- Nuclear 3,937 MW (9%)
- Hydro 2,719 MW (7%)
- Oil 86 MW (0%)
- Other 28 MW (0%)
When Arizona capacity arrives and leaves
MW due online and retiring in Arizona, 2026 to 2035: 7 rows
| Year | Arizona planned MW | Arizona retiring MW |
|---|---|---|
| 2026 | 2734 | No data |
| 2027 | 6370 | 381 |
| 2028 | 3963 | No data |
| 2029 | 600 | No data |
| 2030 | 1500 | No data |
| 2032 | No data | 1168 |
| 2035 | No data | 3 |
7 rows from EIA-860M.
CSVArizona projects dated after 2035 or without a year: 0 MW.
Where the Arizona projects are
Arizona: 8 counties shaded, darker for more planned MW.
Filter Arizona planned projects
Filter the 59 planned project lines in Arizona.
15,166 MW across 59 project lines, 36% of the 41,591 MW operating in Arizona.
- Saddleback Generation Station, Maricopa: 1,150 MW natural gas, online 2030
- Maricopa Solar, Maricopa: 550 MW storage, online 2026
- Snowflake A Solar and BESS, Navajo: 475 MW solar, online 2027
- Snowflake A Solar and BESS, Navajo: 475 MW storage, online 2027
- CO Bar Solar and BESS, Coconino: 400 MW storage, online 2027
What the Arizona numbers say
Arizona runs 41,591 MW today. The planned list would add 15,166 MW (36%) while 1,552 MW (4%) of operating units carry a retirement date. Through 2035, Arizona has 15,166 MW due online and 1,552 MW due to retire there.
Arizona planned mix: 87% solar, storage and wind, 13% natural gas. Arizona stages: 6,544 MW under construction or in testing, 25 MW permits received, not started, 3,972 MW permits pending, 4,625 MW early planning, no approvals started. Arizona retired 388 MW from 2021 to 2026 and has 6,957 MW on the canceled or postponed list.
Arizona capacity by fuel and status
| Arizona fuel | Operating MW | Planned MW | Retiring MW | Retired MW | Canceled in Arizona, MW |
|---|---|---|---|---|---|
| Solar | 8,537 | 6,435 | 3 | 2 | 350 |
| Storage | 6,862 | 6,797 | – | – | 600 |
| Wind | 1,734 | – | – | – | 300 |
| Natural gas | 15,131 | 1,934 | – | – | 5,331 |
| Coal | 2,556 | – | 1,549 | 383 | 375 |
| Nuclear | 3,937 | – | – | – | – |
| Hydro | 2,719 | – | – | – | – |
| Oil | 86 | – | – | 3 | – |
| Other | 28 | – | – | – | 1 |
| All fuels | 41,591 | 15,166 | 1,552 | 388 | 6,957 |
Arizona counties with the most planned capacity
| Arizona county | Planned, MW | Generators | Largest fuel |
|---|---|---|---|
| Maricopa County | 3,660 | 21 | Storage |
| La Paz County | 3,013 | 14 | Solar |
| Coconino County | 2,700 | 8 | Solar |
| Pinal County | 2,227 | 15 | Storage |
| Navajo County | 1,900 | 6 | Solar |
| Yuma County | 1,118 | 4 | Solar |
| Cochise County | 351 | 4 | Storage |
| Mohave County | 197 | 5 | Natural gas |
Largest planned projects in Arizona
| Arizona plant | County | Fuel | Stage | Due | MW |
|---|---|---|---|---|---|
| Saddleback Generation Station | Maricopa | Natural gas | Early planning, no approvals started | 2030 | 1,150 |
| Maricopa Solar | Maricopa | Storage | Under construction or in testing | 2026 | 550 |
| Snowflake A Solar and BESS | Navajo | Solar | Permits pending | 2027 | 475 |
| Snowflake A Solar and BESS | Navajo | Storage | Permits pending | 2027 | 475 |
| CO Bar Solar and BESS | Coconino | Storage | Early planning, no approvals started | 2027 | 400 |
| CO Bar Solar and BESS | Coconino | Solar | Early planning, no approvals started | 2027 | 400 |
| Eagle Eye Solar and Storage | La Paz | Solar | Permits pending | 2028 | 400 |
| Eagle Eye Solar and Storage | La Paz | Storage | Permits pending | 2028 | 400 |
| Red Antelope Solar & Energy Storage Farm | Coconino | Solar | Early planning, no approvals started | 2028 | 400 |
| Valley Farms Energy Center | Pinal | Storage | Under construction or in testing | 2027 | 400 |
Arizona against its neighbors
Arizona: planned MW equal 36% of operating. Bordering states: California plans 19% of what it runs (18 points below Arizona); Colorado plans 29% of what it runs (7 points below Arizona); New Mexico plans 20% of what it runs (16 points below Arizona); Nevada plans 37% of what it runs (1 points above Arizona); Utah plans 32% of what it runs (4 points below Arizona).
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Sources
EIA-860M inventory for Arizona: 466 operating generators, 59 planned lines, edition August 2026, retrieved 5 Oct 2026. Sources for {e(sn)}.
More on Arizona
Questions
Arizona: how much new power plant capacity is planned?
15,166 MW, 36% of the 41,591 MW Arizona runs. 6,544 MW is being built or tested in Arizona.
Arizona: what kind of power plants are planned?
Storage leads Arizona with 6,797 of 15,166 planned MW.
Arizona: which power plants are retiring?
1,552 MW of Arizona units have a retirement date, of which 1,549 MW is coal and 0 MW natural gas.
Will Arizona get all the planned plants?
Not necessarily. Arizona has 6,957 MW canceled or postponed, and 388 MW (coal the largest group) retired from 2021 to 2026.