State Overview

Arizona

National Solar Capacity Ranking: 4th

National Energy Storage Capacity Ranking: 3rd

Updated May 2026

 

Arizona State Solar Overview

Arizona is one of the sunniest states and a leading solar market — with huge growth potential. SEIA is working with local stakeholders and policymakers to encourage stability and transparency so that the market can continue to grow.

 

 

Arizona Policy Priorities:

  • SEIA works collaboratively with AriSEIA to engage regulators and lawmakers, focusing on reducing market barriers across industry sectors.
  • At the Arizona Corporation Commission, SEIA advocates for policies and programs that accurately reflect the benefits of solar and storage resources, including piloting Virtual Power Plant programs, opposing discriminatory fees for solar customers, and competitive resource procurement.

Arizona Major Solar and Storage Projects

SEIA’s Major Solar Projects List is a database of all U.S. ground-mounted solar projects, 1 MW and above, that are either operating, under construction or under development.

 

Official SEIA State Affiliate

ariSEIA

 

Just The Facts

  • Solar Capacity:

    11,414 MWdc

  • Storage Capacity

    20,245 MWh

  • National Solar Ranking:

    4th (5th in 2025 additions)

  • Enough Solar Installed to Power:

    1,710,328 homes

  • Percentage of State's Electricity from Solar:

    16.76%

  • Solar Jobs:

    9,768

  • Solar and Storage Companies in State:

    365 (74 Manufacturers, 157 Installers/Developers, 134 Others)

  • Total Solar Investment in State:

    $23.7 billion

  • Growth Projection and Ranking:

    13,816 MW over the next 5 years (ranks 3rd)

  • Number of Solar Installations:

    329,529

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Arizona State Solar Policy Resources

 

 

Arizona Consumer Protection

Arizona law contains detailed consumer protection provisions, including regulations on door-to-door sales, advertising requirements, prohibition of deceptive practices, and a construction recovery fund.

Specific to the solar industry, A.R.S. § 44-1763 details contract requirements and disclosures for distributed generation. Companies who lease or sell solar systems to consumers in Arizona must provide a certificate that the system complies with Arizona law and must receive specific acknowledgment from customers on contract terms, including warranty information, cost, payment schedule, utility rates, and others.

Arizona Energy Storage Policy and Market Overview

Arizona is a leading energy storage market, supported by rapid solar expansion and strong market fundamentals.

Streamlined interconnection processes and supportive policies are enabling faster deployment, while utilities continue to procure storage to maintain reliability as solar penetration increases. Arizona’s hundreds of solar and storage companies invest billions in the state annually, positioning the state as a key hub for both deployment and manufacturing.

 

 

Arizona Energy Storage Policy Resources

 

 

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