The policies of the various electric utilities in Arizona vary, select the utility that serves your area.
On November 2, the Arizona Corporation Commission voted its final approval to eliminate Arizona Public Service (APS) company’s “grid access charge,” ending a decade-old unfair practice of charging residential solar customers a discriminatory fee. The grid access fee, a monthly fee based on $0.93 per kW-dc of generation. This fee averaged about $100 per year per solar customer. The Arizona Solar Energy Industries Association (AriSEIA) and the Solar Energy Industries Association (SEIA) argued that the fee unfairly targeted solar customers under the pretense that it cost more to provide them with electricity.
APS is also reducing the "on peak" hours for time-of-use electricity plans eventually will shift to 4 to 7 p.m. Today, those rate plans use on-peak hours of 3 to 8 p.m. APS said it could take 10 months to implement the change.
The changes regulators made to APS revenue will affect bills starting in December, but the company said it would take several months to adjust the new on-peak hours on time-of-use energy plans.
Arizona Public Service Co. has introduced a Residential Battery Pilot Program, starting October 4, 2021.
The pilot will be available to APS residential customers who install residential battery systems, enroll in a TOU (Time of Use) or TOU-plus-demand service plan and commit to discharging their batteries during on-peak periods. (Note: Rate requirements are waived for customers on grandfathered solar rates.) The pilot will help APS learn about battery performance in a variety of conditions and how batteries may create value for customers through improved management of energy demand at their residence and help reduce stress on the electric grid.