Rate case 2019: serving customers with clean, reliable and affordable energy

Most companies set their own prices for products. Regulated utilities like APS are different. To adjust our prices, we file a request with the Arizona Corporation Commission (ACC), which opens a public process called a rate case to examine the filing. Our 2019 request, submitted at the direction of the ACC, is designed to recover investments made to make the system cleaner and better able to integrate renewables, and to build out the system to continue to reliably serve the needs of a growing Arizona.


The process

A rate case seeks to balance the needs of customers and the utility. It determines the price customers pay for safe, reliable electricity. It also authorizes a profit target (but not a guarantee) to support a financially sound utility, which in turn helps attract more affordable investment in the energy system. A utility’s request to set new rates undergoes an extensive examination over a period of many months. It typically takes 12-18 months before new rates go into effect.

October 2019
APS filed rate case request at the direction of the ACC

July 2020 - February 2021
Public comment meetings held

January 2021 - March 2021
Rate case hearing; customer advocates and others participate

Likely timeframe for ACC to approve new rates to take effect


Reliable power
APS trucks below transmission tower in Arizona landscape.

Infrastructure upgrades

Customers count on us for safe, reliable power, and we’re investing more than $1 billion on average each year to expand and maintain the electric grid.


Clean energy
APS employees walk through solar power plant with Arizona mountains in background.

Supporting renewables

To integrate more solar and meet peak energy needs, we modernized the Ocotillo Power Plant to add flexibility and maintain reliability.

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Cleaner air

Significant improvements to the Four Corners Power Plant are reducing nitrous oxide emissions by nearly 90 percent.

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Woman looking at her laptop on the kitchen table with paperwork.

Cost management

We have a responsibility to operate in the most cost-effective way for customers. That’s why we’re driving to streamline processes and use data to improve efficiency.
Man taking clean laundry out of the dryer.

Fewer fees, simpler bills

Certain fees would be eliminated, such as the start service fee, and stakeholder and customer feedback would help shape an easier-to-understand bill.
Father and son engage in imaginative play with a cardboard box.

Limited-income support

More funding for crisis bill assistance and an easier enrollment process for limited-income programs would extend this support to more customers.


Fact sheets

For residential customers

We're proposing options that make it easier to manage your account while supporting reliability and clean energy. (This fact sheet is based on our original testimony filed on October 31, 2019.)
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For business customers

See how the rate case impacts your business, strengthens the state's electric grid and supports cleaner air. (This fact sheet is based on our original testimony filed on October 31, 2019.)
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Rate case explained

Through an open, public process, rate cases determine the price customers pay for safe, reliable electricity.
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Different plans, different ways to save

Today you have a variety of plans to choose from based on how you use energy. Explore all of your options and find the one that works best for you. Each plan offers ways to save on your energy bill.

Arizona Corporation Commission

The ACC is the body that regulates public utilities in Arizona. On their site, you can view documents related to the rate case using the e-docket function (docket no. E-01345A-19-0236).
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