Phoenix Office
Arizona Corporation Commission
1200 W. Washington St.
Phoenix, AZ 85007
(602) 542-4251
(800) 222-7000

Utilities Division
Steven M. Olea - Director

Tucson Office
Arizona Corporation Commission
400 W. Congress, Ste. 218
Tucson, AZ 85701
(520) 628-6550
(800) 535-0148


Renewable Energy Standard & Tariff

In 2006, the Commission approved the Renewable Energy Standard and Tariff (REST). These rules require that regulated electric utilities must generate 15 percent of their energy from renewable resources by 2025. Each year, Arizona's utility companies are required to file annual implementation plans describing how they will comply with the REST rules. The proposals include incentives for customers who install solar energy technologies for their own homes and businesses. The Commission’s Renewable Energy Standards encourage utilities to use solar, wind, biomass, biogas, geothermal and other similar technologies to generate “clean” energy to power Arizona’s future.


Renewable Energy Standard and Tariff (REST)

 News Release on the Passage of the REST Rules

 Arizona Goes Solar


Utility EPS/REST Compliance Reports (Calendar Year 2014)

Arizona Public Service Company

Utility EPS/REST Compliance Reports (Calendar Year 2013)

Arizona Public Service Company
AJO Improvement Company
Duncan Valley Electric Coop
Graham County Electric Coop
Mohave Electric Coop
Morenci Water and Electric
Sulphur Springs Valley Electric Coop
Tucson Electric Power Company
Trico Electric Coop
UNS Electric 

Utility EPS/REST Compliance Reports (Calendar Year 2012)

Utility EPS/REST Compliance Reports (Calendar Year 2011)



 Utility EPS/REST Compliance Reports (Calendar Year 2009)


Utility EPS/REST Compliance Reports (Calendar Year 2008)


Utility EPS/REST Compliance Reports (Calendar Year 2007)
















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