Arizona
power plants.
Arizona has 114 operating power plants in the catalog, 27,994 MW in all. The catalog also marks 3 plants as Retired, with 1,131 MW of capacity. Its operating fleet leans on natural gas, which accounts for 58.8% of operating capacity, with nuclear second at 15.2%. The largest operating plant in the catalog is Palo Verde Nuclear Power Plant (4,242 MW, recorded start year 1986).
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Arizona electricity mix
Operating installed capacity by fuel. Each row gives megawatts and its share of the operating total.
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Largest plants in Arizona
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Newest plants in Arizona
This table includes 1 of the 2 operating plants with a recorded start year of 2018, largest first. The catalog records years, not full commissioning dates.
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Frequently asked questions
Where does Arizona get its electricity?
Across the 114 operating plants in the catalog, capacity is led by natural gas at 58.8%, then nuclear at 15.2%. These are installed-capacity shares, not live generation.
What is the largest power plant in Arizona?
The largest operating plant in the catalog for Arizona is Palo Verde Nuclear Power Plant, a nuclear facility with 4,242 MW and a recorded start year of 1986.
How many power plants are in Arizona?
The catalog tracks 114 operating power plants in Arizona, with 27,994 MW in all. It also marks 3 plants as Retired, with 1,131 MW of capacity.