APS (Arizona Public Service) electric rates and bills
APS's 1,287,097 residential customers in Arizona paid an average of 17.03¢ per kWh in 2025, for an average bill of $164.54 a month on 966 kWh.1 Over the last 12 months (Sep 2025–Aug 2026) the average was 17.10¢, and 16.86¢ in August 2026.2
EIA-861 2025 final (released October 7, 2026) and EIA's monthly utility survey through August 2026 (preliminary); next monthly update expected November 24, 2026. Averages are revenue divided by kWh, all charges included: not the rate printed in a tariff.
14 of 15 Arizona counties served (EIA-861 2025)
APS homes paid an average of 17.03¢ per kWh in 2025, the 2nd highest1 among Arizona's large utilities, yet the average bill fell because use per home dropped. What sets APS apart is how its customers buy power: 58.0% of its homes were on a time-of-use plan, and it reported 148.06 net-metered rooftop solar systems per 1,000 residential customers.
APS price per kWh, by period
Arizona Public Service Company, an investor-owned utility, delivered and sold electricity to 1,287,097 residential customers in 2025, 40.7% of Arizona's total and more than any other utility in the state. Those customers paid an average of 17.03¢ per kWh1 that year. The figure is average revenue per kWh: everything billed to homes, including the basic service charge and adjustors, divided by the kWh they used. It is not the charge printed on any one plan, and households on different plans pay different effective prices.
EIA's monthly survey gives two more recent readings. Over the last 12 months (September 2025 to August 2026) APS homes paid 17.10¢ per kWh. In August 20263 alone they paid 16.86¢ per kWh, +0.8%2 against the same month a year earlier; 2026 months are preliminary, and a single summer month weighs differently from a full year.
Second-highest among Arizona's large utilities
Of the 12 Arizona utilities with 10,000 or more residential customers, APS had the 2nd highest average residential price in 2025, 11.6% above the Arizona average. Only City of Mesa averaged more (20.56¢ per kWh). Customers of the two other large utilities paid less on average: Salt River Project, the public power district that shares the Phoenix area with APS, at 13.98¢ per kWh, and Tucson Electric Power at 14.88¢ per kWh1.
Source: EIA-861 annual electric power industry report, 2025 final. Utilities with 10,000 or more bundled (full-service) residential customers. Revenue divided by kWh sold, all charges included, EIA-861 2025 final. Darker bars have their own page.
Show the numbers
| Utility | ¢/kWh |
|---|---|
| Mohave Electric Cooperative | 11.27¢ |
| Navopache Electric Cooperative | 13.48¢ |
| Salt River Project | 13.98¢ |
| Electrical Dist No3 Pinal County | 14.02¢ |
| Trico Electric Cooperative | 14.26¢ |
| Sulphur Springs Valley E C | 14.61¢ |
| Tucson Electric Power | 14.88¢ |
| Arizona average | 15.26¢ |
| USBIA-San Carlos Project | 16.37¢ |
| Navajo Tribal Utility Authority | 16.54¢ |
| UNS Electric | 16.99¢ |
| APS | 17.03¢ |
| City of Mesa | 20.56¢ |
Nationally APS looks less expensive. It ranked 59th highest of 177 among utilities with 100,000 or more residential customers, above their median of 15.07¢ per kWh but 4.2% below the national average for investor-owned utilities (17.78¢ per kWh). Arizona's state average is lower because its public power and cooperative customers paid less: 14.08¢ per kWh and 13.37¢ per kWh on average in 2025, against 16.59¢ per kWh1 for the state's investor-owned utilities.
Smaller bills on lower use
The average APS bill was $164.54 a month in 2025, down from $170.02 in 2024 (−3.2%), although the average price rose 3.5%, from 16.45¢ per kWh. The difference is consumption: use per home fell from 1,034 kWh4 to 966 kWh1 a month. The trailing 12 months (September 2025 to August 2026) show use back up at 999 kWh and the bill at $170.882.
An APS home used less than an SRP home in 2025 (1,143 kWh), so the gap in bills ($164.54 against $159.711) is much narrower than the gap in price per kWh.
The rate case before the Corporation Commission
APS's prices are set by the Arizona Corporation Commission, which regulates investor-owned utilities in the state. A general rate case is pending. According to the commission's July 2026 update, the hearing ran from May 18 to July 7, 2026, and also covered a proposed formula rate adjustment mechanism; the administrative law judge's recommended order was expected by late November 2026, the commission must vote on it by December 31, 2026, and approved rates would likely take effect in early 2027. The docket on the commission's site holds the filings and, once issued, the order.
Rates from this case are not yet in what customers pay. EIA's monthly figures track the average price APS homes actually paid:
Source: EIA-861M monthly sales and revenue by utility; EIA, Electric Power Monthly / EIA-861M sales and revenue by state. Residential revenue divided by kWh in each month, as reported to EIA's monthly survey (EIA-861M; months since January 2026 preliminary).
Show the numbers
| Month | APS (¢/kWh) | kWh per customer | Bill per customer |
|---|---|---|---|
| January 2025 | 16.37¢ | 806 | $131.88 |
| February 2025 | 16.72¢ | 605 | $101.20 |
| March 2025 | 17.45¢ | 679 | $118.54 |
| April 2025 | 18.67¢ | 679 | $126.79 |
| May 2025 | 17.97¢ | 910 | $163.43 |
| June 2025 | 16.94¢ | 1,287 | $217.94 |
| July 2025 | 16.79¢ | 1,582 | $265.68 |
| August 2025 | 16.72¢ | 1,653 | $276.34 |
| September 2025 | 16.98¢ | 1,207 | $204.88 |
| October 2025 | 17.12¢ | 807 | $138.16 |
| November 2025 | 16.97¢ | 667 | $113.28 |
| December 2025 | 16.36¢ | 710 | $116.10 |
| January 2026 | 16.96¢ | 734 | $124.50 |
| February 2026 | 17.38¢ | 607 | $105.50 |
| March 2026 | 18.20¢ | 814 | $148.14 |
| April 2026 | 17.49¢ | 746 | $130.37 |
| May 2026 | 17.46¢ | 973 | $169.87 |
| June 2026 | 17.12¢ | 1,350 | $231.11 |
| July 2026 | 16.80¢ | 1,642 | $275.92 |
| August 2026 | 16.86¢ | 1,727 | $291.13 |
August bills against February bills
Air conditioning took 36% of household electricity in Arizona in EIA's 2020 household energy survey, the highest5 share among the states. APS's monthly data show what that means for a bill. In the 12 months September 2025 to August 2026, the lightest month was February 2026, at 607 kWh per home and an average bill of $105.50; the heaviest was August 2026, at 1,727 kWh and $291.132. The annual average hides that swing: a household budgeting on $164.541 a month will pay much more than that at the summer peak.
Source: EIA-861M monthly sales and revenue by utility. kWh per residential customer in each month (EIA-861M; months since January 2026 preliminary). The table adds the average bill and price for the month.
Show the numbers
| Month | kWh per customer | Bill per customer | ¢/kWh |
|---|---|---|---|
| September 2025 | 1,207 | $204.88 | 16.98¢ |
| October 2025 | 807 | $138.16 | 17.12¢ |
| November 2025 | 667 | $113.28 | 16.97¢ |
| December 2025 | 710 | $116.10 | 16.36¢ |
| January 2026 | 734 | $124.50 | 16.96¢ |
| February 2026 | 607 | $105.50 | 17.38¢ |
| March 2026 | 814 | $148.14 | 18.20¢ |
| April 2026 | 746 | $130.37 | 17.49¢ |
| May 2026 | 973 | $169.87 | 17.46¢ |
| June 2026 | 1,350 | $231.11 | 17.12¢ |
| July 2026 | 1,642 | $275.92 | 16.80¢ |
| August 2026 | 1,727 | $291.13 | 16.86¢ |
A majority on time-of-use plans
APS reported 746,931 residential customers on time-of-use pricing in 2025, 58.0% of its homes. Across the US, 11.3% of residential customers were on a time-varying rate; at SRP the share was 33.6% and at Tucson Electric Power 16.4%. Advanced meters, which record when electricity is used, were installed at 88.3%6 of APS homes.
On a time-of-use plan, the same kWh costs more in the on-peak window than off-peak, so the bill depends on when a home runs its air conditioner as well as how much. APS publishes its plans and their on-peak hours on its own site; the time-of-use guide explains how such plans change a bill. The average price above blends all of APS's plans, time-of-use and flat.
Rooftop solar well above the national rate
APS counted 190,456 net-metered residential solar installations in 2025, with 1,726.1 megawatts of capacity: 148.0 per 1,000 residential customers, against 38.1 nationally, 131.4 at Tucson Electric Power and 59.16 at SRP. Solar homes buy fewer kWh from the grid, which lowers the average use per home in EIA's figures for the utility.
A wide territory, every county shared
In EIA's 2025 service-territory records, APS reports service in 14 of Arizona's 15 counties, every one except La Paz County on the Colorado River. SRP reports 3 and Tucson Electric Power 2. In all 14, at least one other utility also reports customers; Maricopa County alone has 137. A city or ZIP code therefore does not settle which utility serves a home: the utilities' own maps do.
Source: EIA-861 2025, service territory; Census Bureau, Cartographic boundary file, counties. EIA-861 2025 service territory: 14 counties. Counts whole counties even where the utility serves only part of one; check the utility's own service-area map for an address.
Show the numbers
| County | Other utilities reporting service |
|---|---|
| Apache County | Navopache Electric Cooperative, Navajo Tribal Utility Authority, WAPA-- Western Area Power Administration |
| Cochise County | Tucson Electric Power, Sulphur Springs Valley E C, Columbus Electric Cooperative, WAPA-- Western Area Power Administration |
| Coconino County | Mohave Electric Cooperative, Navajo Tribal Utility Authority, Page Utility Enterprises, City of Williams - AZ, Garkane Energy Cooperative, Town of Fredonia, WAPA-- Western Area Power Administration |
| Gila County | Salt River Project, Navopache Electric Cooperative, USBIA-San Carlos Project, WAPA-- Western Area Power Administration |
| Graham County | Sulphur Springs Valley E C, USBIA-San Carlos Project, Graham County Electric Cooperative, City of Safford, Town of Thatcher, Duncan Valley Electric Cooperative |
| Greenlee County | Navopache Electric Cooperative, Duncan Valley Electric Cooperative, Morenci Water and Electric |
| Maricopa County | Salt River Project, City of Mesa, USBIA-San Carlos Project, Tohono O'Odham Utility Authority, Gila River Indian Utility Authority (GRICUA), Town of Wickenburg, Ocotillo Water Conserv. Dist., Buckeye Water C&D District, Harquahala Valley Power District, Maricopa County M W C Dist #1, Electrical Dist No8 Maricopa, WAPA-- Western Area Power Administration |
| Mohave County | UNS Electric, Mohave Electric Cooperative, Dixie Escalante R E A, Garkane Energy Cooperative, Aha Macav Power Service, WAPA-- Western Area Power Administration |
| Navajo County | Navopache Electric Cooperative, Navajo Tribal Utility Authority, WAPA-- Western Area Power Administration |
| Pima County | Tucson Electric Power, Trico Electric Cooperative, Sulphur Springs Valley E C, USBIA-San Carlos Project, Tohono O'Odham Utility Authority, Ajo Improvement Co, WAPA-- Western Area Power Administration |
| Pinal County | Salt River Project, Trico Electric Cooperative, Electrical Dist No3 Pinal County, USBIA-San Carlos Project, Electrical Dist No2 Pinal County, Tohono O'Odham Utility Authority, Electrical Dist No4 Pinal County, Gila River Indian Utility Authority (GRICUA), Hohokam Irr & Drain Dist, Ak-Chin Electric Utility Authority, WAPA-- Western Area Power Administration |
| Santa Cruz County | UNS Electric, Trico Electric Cooperative, Sulphur Springs Valley E C |
| Yavapai County | Mohave Electric Cooperative, WAPA-- Western Area Power Administration |
| Yuma County | Wellton-Mohawk Irr & Drain Dist, WAPA-- Western Area Power Administration |
Outages
APS customers averaged 73 minutes without power in 2025 including major event days, fewer than the Arizona average of 74 minutes, and 73 minutes excluding them, so major events added little. Each customer saw 0.849 interruptions on average (IEEE 1366 measures).
Business customers and help with bills
Commercial customers paid 13.45¢ per kWh on average in 2025 and the 2,458 industrial accounts 10.92¢ per kWh; across all customers APS averaged 14.87¢ per kWh1.
Arizona received $35.5 million from the federal Low Income Home Energy Assistance Program for fiscal 2026, $11.67 per occupied home, the lowest10 among the states. The help paying your electric bill guide covers LIHEAP and utility discount programs. For the rest of the state, see electricity in Arizona.
APS rates: common questions
What is the APS rate per kWh?
There is no single rate: APS has several residential plans with different charges by season and time of day. What EIA reports is the average across all of them, revenue divided by kWh: 17.03¢ per kWh1 in 2025 and 17.10¢ per kWh2 over the last 12 months (September 2025 to August 2026, preliminary). The per-kWh charges printed in a plan's tariff exclude the basic service charge and some adjustors, so they differ from this average.
Are APS rates going up in 2027?
That depends on the rate case now before the Arizona Corporation Commission. According to the commission, the hearing ended on July 7, 2026, the commission must vote by December 31, 2026, and approved rates would likely take effect in early 2027. Until then, EIA's data show what customers have paid: 16.86¢ per kWh in August 20263, +0.8%2 against the same month a year earlier.
What is the average APS electric bill?
$164.54 a month in 2025, for 966 kWh1. Over the last 12 months (September 2025 to August 2026) the average was $170.88, and in EIA's monthly data it ranged from $105.50 in February 2026 to $291.13 in August 20262.
Can I choose SRP instead of APS?
No. Arizona homes have no retail choice (0.0%1 of residential customers bought from a supplier in 2025), and APS and Salt River Project each serve their own territory. The utilities' service-area maps decide by address.
Related pages
Sources
- EIA-861 annual electric power industry report, 2025 final; table Sales_Ult_Cust_2025; 2025, final; released October 7, 2026. www.eia.gov
- EIA-861M monthly sales and revenue by utility; table sales_ult_cust_2025 and _2026; released October 23, 2026. www.eia.gov
- EIA, Electric Power Monthly / EIA-861M sales and revenue by state; table sales_revenue.xlsx (EPM Table 5.6.A); January 2001 to 2026-08; months since January 2026 preliminary; released October 23, 2026. www.eia.gov
- EIA-861 annual electric power industry report, 2024 final; table Sales_Ult_Cust_2024; 2024, final (file updated December 3, 2025); released December 3, 2025. www.eia.gov
- EIA, Residential Energy Consumption Survey 2020, state data; table CE4.1.EL.ST, CE5 state tables, state highlights; released June 28, 2023. www.eia.gov
- EIA-861 2025, advanced meters, dynamic pricing and net metering; table Advanced_Meters, Dynamic_Pricing, Net_Metering 2025; 2025, final; released October 7, 2026. www.eia.gov
- EIA-861 2025, service territory; table Service_Territory_2025; 2025, final; released October 7, 2026. www.eia.gov
- Census Bureau, Cartographic boundary file, counties; table cb_2025_us_county_5m; cb_2021_us_county_5m; 2025 (2021 for Connecticut). www.census.gov
- EIA-861 2025, reliability; table Reliability_2025; 2025, final; released October 7, 2026. www.eia.gov
- HHS, LIHEAP funding releases to states; table FY2027 first release; FY2026 final; FY2027 first release (October 9, 2026); FY2026 total; released October 9, 2026. acf.gov
How every figure is built: methodology. Found an error? Write to [email protected]; corrections are listed on the updates page.