On May 26th 2021, the Arizona Corporation Commission reconsidered and passed a Clean Energy Rules package. The energy rules package includes 100% carbon-free energy in Arizona by 2070. And the carbon reductions are requirements and not goals.

Revised carbon emissions reductions levels by the following:
• 50% by December 31, 2032
• 65% by December 31, 2040
• 80% by December 31, 2050
• 95% by December 31, 2060
• 100% by December 31, 2070

Most importantly, the passed rules retained all the beneficial policies and requirements around storage and distributed storage. Specifically, the rules include a 35% energy efficiency requirement, which is the nation’s first distributed storage/solar requirement, preferential treatment for energy procurement from coal-impacted communities and tribes, as well as a complete rewrite of the IRP rules that will require the Commission to approve, rather than acknowledge a preferred portfolio of resources.

This is not yet final, as a result of substantive changes made to the original Recommended Opinion and Order, the amended energy rules package will be sent back through the formal rulemaking process. An updated schedule will be implemented that will allow for written comments and public comment on the record. Interested parties can submit formal written comments to the docket beginning July 9, 2021 through August 20, 2021. Public comment sessions will be held on August 16 and 19, 2021, at 10am.

The passage of the Energy Rules as they presently stand reflects a significant win for ratepayers, for the people of Arizona and for the Solar Energy Industry.

See also Materials Presented by the Joint Stakeholders at the Commission's March 2020 Energy Rules Workshop

The Nature Conservancy has submitted their report "Arizona Thrives - A Path to a Healthy and Prosperous Future" to the ACC. Interesting.

APS has submitted their report,  The Solar Center has slightly reformatted this report by rotating the pages for easier viewing.  APS has provided two presentations to address the ACC questions. Worth a read.