APS Asks To Raise Grid Access Charges For Residential PV, Launches Pilot Home Energy Storage

Arizona’s largest utility APS proposed that regulator Arizona Corporation Commission (ACC) increase its grid access charge from 70cents/kW to $3/kW, or about $21 per month for future residential storage customers.

The Commission had initially decided on this $3/kW charge in 2013 but set it at 70cents instead with the acknowledgement that it could be changed in the future. APS and Arizona’s regulators have long held the belief that grid-tied solar customers must pay for the grid services they use.

Under this proposal, future solar customers would still save about 10cents/kWh on solar they produce, and have the option of choosing a demand-based rate and avoid grid access charge.

APS has also agreed to provide $1billion in upfront rebate incentive funding for a solar-plus-storage system pilot project. Under this project, 75 homes will be test-beds for solar-plus-storage and “all-in” sites for new technologies while another 100 homes will get solar-plus-storage at a single rate with a demand charge.

Results of the pilot will help APS determine future investment in residential energy storage.

If you want to know more about this and other topics directly from end users of energy storage technologies join us at one of these annual events: The Energy Storage World Forum (Grid Scale Applications), or The Residential Energy Storage Forum, or one of our Training Courses.


Annual Installed Capacity Significantly Increases

While the global market was under the haze of the epidemic and many countries were still in lockdown, the energy storage market showed extremely strong resilience and began to recover and grow since Q3 and Q4 of 2020. According to the BloombergNEF report, the global energy storage market in 2020 has developed faster than expected,…

Read More


“Probably the most interactive and well organized storage event on the calendar.”


Sales Director, S&C

“Great topics, competent speakers, good networking: keep it like that.”



“High scientific content, well targeted, perfect organization.”


Expert Technical & Governance, Elia

Excellent networking event. The sponsorship was well worth it.”


Manager, ATL

View More