From July 2025 through June 2026, low-carbon sources supplied just over half of Arizona’s electricity, while fossil fuels supplied roughly half. Nuclear provided about 25%, solar nearly 19%, hydropower 4%, and wind 3%. Solar included about 14% from utility-scale facilities and 5% from behind-the-meter systems, such as rooftop panels. Among fossil fuels, gas dominated at about 43% of electricity, with coal contributing roughly 7%. These reported source shares total slightly more than 100%, so they should be treated as approximate rather than an exact breakdown.

Is Electricity Growing in Arizona?

Arizona’s electricity consumption per person is growing, although only modestly. The latest 2026 figure reached about 16,100 kWh per person, exceeding the previous record set in 2024 by 81 kWh, or about 0.5%. Low-carbon electricity generation grew faster, reaching roughly 8,250 kWh per person—about 300 kWh, or nearly 4%, above its 2025 record. These new highs are encouraging, especially the stronger growth in clean electricity, but sustained expansion will be important to support electrification and additional demand from AI. These figures measure growth per person; they do not establish the change in statewide electricity consumption.

Suggestions

Arizona can build on its substantial nuclear and solar generation by expanding both technologies, strengthening transmission, and adding storage to make greater use of solar electricity. Nearby examples are particularly useful: the US states of Nevada and California generate about 35% and 31% of their electricity from solar, respectively, compared with Arizona’s 19%. For nuclear, the US states of South Carolina and Illinois demonstrate the potential for a much larger contribution, at about 52% and 49%; France provides another example at 67%. Wind could also complement Arizona’s clean electricity supply, informed by the neighboring US state of New Mexico, where wind supplies 36% of electricity. Expanding these low-carbon sources would help meet growing demand while reducing reliance on fossil fuels and their climate and air-pollution impacts.

History

The supplied history covers 2024 through 2026 and highlights several contributions to Arizona’s low-carbon electricity growth. In 2024, nuclear generation increased by 0.9 TWh and wind added 0.8 TWh. Wind then delivered further gains of 0.6 TWh in 2025 and 0.2 TWh in 2026, adding about 1.6 TWh across the three years. Hydropower contributed an additional 0.2 TWh in 2026, while low-carbon biofuel generation remained unchanged throughout the period. Together, the nuclear increase in 2024 and sustained wind additions illustrate the value of expanding multiple clean electricity sources alongside Arizona’s already substantial solar contribution.

Electricity Imports and Exports

Balance of Trade

* 12M = Last 12 months (Jul 2025 – Jun 2026) — a rolling 12-month period, not a calendar year.