Arizona has surpassed 10 gigawatts of installed solar energy capacity, cementing its position as the third-largest solar state in the nation and marking a milestone that industry leaders say reflects both the state’s abundant sunshine and a maturing market for clean energy.
The milestone, confirmed by the Arizona Corporation Commission using data through the end of 2025, includes rooftop solar installations on more than 350,000 homes and businesses, as well as dozens of utility-scale solar farms spread across the state’s sun-drenched deserts.
“Arizona was made for solar, and this milestone proves the industry has come of age,” said Court Rich, executive director of the Arizona Solar Energy Industries Association. “Ten gigawatts is enough to power roughly 2 million homes during peak production.”
The growth has been driven by falling panel costs, federal tax incentives, and strong consumer demand. Arizona ranks second nationally in per-capita rooftop solar installations, trailing only Hawaii. Major utility-scale projects in Maricopa, Pinal, and Yuma counties have added thousands of megawatts of capacity in recent years.
Salt River Project and Arizona Public Service, the state’s two largest utilities, have both announced plans to add significant additional solar capacity over the next decade, coupled with battery storage systems that address the challenge of generating power when the sun isn’t shining.
“Storage is the key to unlocking solar’s full potential,” said APS spokesperson Alan Bunnell. “We’re investing in battery systems that can store daytime solar energy and deliver it during evening peak demand hours.”
The solar industry employs an estimated 11,000 workers in Arizona, making it one of the state’s fastest-growing job sectors. Industry advocates are pushing for expanded workforce training programs at community colleges to meet growing demand for installers, electricians, and maintenance technicians.
Despite the growth, debates continue over net metering policies, grid interconnection costs, and land-use conflicts between solar development and desert conservation. Environmental groups have called for stronger siting guidelines to protect sensitive desert habitats.
Looking ahead, industry projections suggest Arizona could reach 15 gigawatts of installed solar capacity by 2030.
