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Arizona   Arizona Profile

State Profile and Energy Estimates

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Profile Overview

Quick Facts

  • Arizona's Palo Verde Nuclear Generating Station is the largest nuclear power plant, the largest net generator of electricity, and, with a net summer capacity of 3,937 megawatts, the second-largest power plant of any kind in the nation.
  • In 2021, Arizona ranked fifth in the nation in solar-powered electricity generation at utility-scale and small-scale installations. Solar energy provided the state with more power than all of Arizona's other renewable energy sources combined.
  • In part because of its large population, low industrial sector energy use, and mild winter climate, Arizona consumed less energy per capita than all but five other states. 
  • In 2021, 99% of Arizona's total electricity net generation was provided from 6 sources: natural gas (43%); nuclear power (28%); coal (13%); solar energy (9%); hydroelectric power (5%): and wind (1%). Hydroelectric pumped storage, petroleum, and biomass supplied the rest.
  • In 2021, hydroelectric power supplied about 5% of Arizona's in-state electricity generation, in part because of a prolonged (27-year) drought. The Glen Canyon Dam and Hoover Dam in northern Arizona provide most of the state's hydroelectric generation.

Last Updated: April 21, 2022

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