Energy Rules


Docket Number is  RU-00000A-18-0284


Commissioners voted 3-2 to advance an amended energy rules package at its May 26 Open Meeting that will move Arizona’s regulated utilities to 100% carbon-free energy by 2070. The vote to move the rules forward comes after the energy rules failed at the Commission’s May 5 Open Meeting.

The Commission’s vote is the result of nearly three years of work by Commissioners and Commission Staff, including several workshops, and input from myriad stakeholders, including regulated utilities, clean energy advocacy groups, public health advocates, consumer advocates, and concerned ratepayers. The amended energy rules will now go back through the formal rulemaking process which allows for additional opportunities for public comment before eventually coming back before the Commission for a final vote.

Several amendments were adopted during the May 26 Open Meeting.  The result of the compromises made between Commissioners helped to garner the necessary 3 votes to advance the rules package. Notable among the amendments was a joint amendment from Commissioner Anna Tovar and Commissioner Jim O’Connor which extended the deadline by which utilities must reach 100% carbon-free emissions from 2050 to 2070, with interim standards beginning with a 50% reduction by 2032, a 65% reduction by 2040, an 80% reduction by 2050, and a 95% reduction by 2060.

Commissioners Tovar and O’Connor offered three additional amendments which were adopted that will add a Ratepayer Impact Measure Test, make changes to the portfolio options utilities must put forth in their Integrated Resource Plans, and add the definition of ‘All Source’ which includes supply-side and demand-side resources.

Chairwoman Lea Márquez Peterson offered an amendment that was adopted, which will allow a utility to seek a fair return on the fair value of the reasonable and prudent, used and useful investments made in demand-side resources, such as energy efficiency and demand response.


Arizona Corporation Commission Special Open Meeting regarding Ascend and Workshop

The Arizona Corporation Commission's Special Open Meeting regarding Ascend and Workshop September 28 and 29, 2021 can be viewed here.  


For more information on the matter of possible modifications to the Arizona Corporation Commission's Energy Rules