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In October 2022, APS filed a rate case request with the Arizona Corporation Commission – an early step in a public, collaborative process that typically takes about a year. This rate case is designed to support investments we’re making to serve you with reliable, affordable and clean energy – today and tomorrow. View our application.

Reliability and Resilience

You count on us to power your life. We’re strengthening our energy infrastructure to continue delivering the reliable service you expect.

APS lineman working on a powerline

Maintain reliability: We’re replacing aging power poles, conductors and underground cables that are at risk of failure, including replacing wood poles with steel when possible, to improve resilience.

Improve service: Advanced grid technologies, such as switches that we can operate remotely and upgraded control systems, allow us to reroute power around trouble spots until repairs can be made.

Increase resiliency: As Arizona experiences increasing risks associated with extreme weather, we’re making our system more resilient, including investing in equipment and maintenance to reduce the risk of wildfires.

Reliability investments in action: The 2022 monsoon season was one for the record books, but investments in the energy system helped minimize disruptions to customers. When power did go out, our crews worked day and night to get customers back on – replacing a record 811 damaged power poles in a four-month period. Learn more

Clean, balanced energy supply

We’re ensuring you have the energy you need when you need it, investing in affordable clean energy and protecting overall reliability.

agave solar plant

Solar after sunset: We’re adding cost-competitive solar resources, including the Agave Solar Plant in Arlington, AZ, and building battery energy storage units at our existing solar plants in order to deliver solar energy to customers after the sun sets. Learn more

Palo Verde Generating Station: By investing in the upkeep of Palo Verde – the country’s largest energy producer of any kind – customers continue to benefit from its 100% clean energy around the clock.

Flexible natural gas: Maintaining natural gas plants allows us to deliver reliable energy through the hot summer evenings.

Continuously Improving

Proposals in this rate case continue our efforts to provide programs that meet your needs and improvements that make it easier to do business with us.

APS call center agent on the phone

Eliminating payment fees: We’re listening to your feedback on how we can improve our service. During the last rate case, we extended the amount of time you have to pay your bill. This time around, we’re proposing getting rid of payment fees. Learn more

Customer resources: We offer resources, such as our Cool Rewards smart thermostat program, to help you manage energy and save money all year long. For customers who need additional support, we’re also expanding our bill assistance programs.

How to Get Involved

Customers and members of the public are invited to participate in the process by providing comments directly to the Arizona Corporation Commission. Information about public comment sessions, telephonic and written correspondence is available in the public notice and on the ACC’s website.

You also can find additional information on this rate case by viewing our application. Still have questions? Contact us directly at 602-250-2767 or by email ratecase@aps.com.


Frequently Asked Questions

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Unlike most companies that can set prices for their products, APS is a regulated utility that must file a request with the ACC to open a public process called a rate case. Utilities must file a request to recover costs the company has invested into the business.

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If approved as proposed, the monthly bill would increase 13.6 percent – about $18 or roughly 60 cents per day for an average residential customer using 1023 kWh – though the impact will vary based on individual energy use and service plan. New rates would not take effect until December 1, 2023, at the earliest.

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If approved as proposed, the general service average bill impact would be 13.6 percent.

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The rate case process generally takes about a year, depending upon the complexity of the issues and number of participants.

1. APS files a notice of intent (NOI) to file a rate case. Completed: June 2022
2. APS files its rate case, which includes details of its request. Completed: October 2022
3. Participants and ACC staff have an opportunity to provide testimony.
4. Public is invited to provide comment on the proceeding.
5. ACC administrative law judge (ALJ) hears the case.
6. ALJ issues a recommended opinion and order (ROO).
7. Commissioners hold an open meeting to discuss and vote on the ROO.

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Our rates have stayed flat since 2018 and remain below the national average. We’re requesting rates that more accurately reflect the increasing costs to deliver the service our customers expect – reliability no matter the weather, an energy supply that keeps up with Arizona’s growth, and a responsible clean energy transition.
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