Arizona Public Service (APS)
Arizona Public Service serves about 1.4 million customers across much of Arizona as a vertically integrated investor-owned utility regulated by the Arizona Corporation Commission. APS offers a residential EV-specific time-of-use plan, EV Overnight Charging 11pm-5am Weekdays, offers Level 2 smart chargers through the APS Marketplace without a published rebate amount, and runs the SmartCharge program, which pays bill credits for sharing home charging data. APS says business EV charging incentives and make-ready programs are not currently available.
At a glance
Investor-owned- Serves
- Arizona
- Customers
- 1,400,037
- EV rate plan
- Yes
- EVSE rebate
- –
- Managed-charging program
- Yes
EV time-of-use rate plans
EV Overnight Charging 11pm-5am Weekdays (Rate Schedule R-EV)
Verified Oct 2026
- Peak
- 4pm-7pm weekdays, year-round
- Varies
- Off-peak
- 11pm-5am weekdays (overnight), plus winter super off-peak 10am-3pm weekdays on November through April bills; all other hours, weekends, and listed holidays are off-peak
- Varies
Residential customers who own a qualified electric vehicle (neighborhood electric vehicles do not qualify), with annual proof of EV ownership and an AMI (smart) meter on the APS network. Energy price varies by time of day, day of week, and season; no demand charge. Current tariff took effect March 8, 2024 under ACC Decision No. 79293; a new APS rate case is pending before the ACC, so prices and windows can change after it is decided.
Time-of-Use 4pm-7pm Weekdays with Demand Charge (Rate Schedule R-3)
Verified Oct 2026
- Peak
- 4pm-7pm weekdays
- Varies
- Off-peak
- All hours outside 4pm-7pm weekdays, including weekends and listed holidays, plus winter super off-peak 10am-3pm weekdays on November through April bills
- Varies
Available to all residential customers. Not EV-restricted but suits EV owners who can keep charging out of the 4pm-7pm peak; includes a monthly demand charge on the highest one-hour on-peak demand. Current tariff took effect March 8, 2024 under ACC Decision No. 79293.
Managed-charging programs
APS SmartCharge: EV Charging Assistant Rewards
APS makes small adjustments to the timing or speed of home charging during periods of high demand or abundant clean energy. The customer sets a charge-by time and target percentage and can opt out of adjustments. New enrollments are paused; APS runs a waitlist.
$25 enrollment bill credit plus $5 monthly participation bill credit (new enrollments paused, waitlist open)
APS SmartCharge: EV Data Rewards
Customers share home EV charging data with APS without giving up control of when they charge. APS uses the data to plan for EV growth on the grid. Works through a supported vehicle or a supported connected charger; the enrollment page lists eligible makes. Customers can enroll in only one SmartCharge option.
Up to $85 in bill credits in the first year: $25 for enrolling plus $5 per month for staying enrolled
APS offers an EV-specific time-of-use plan, EV Overnight Charging 11pm-5am Weekdays. On-peak hours run 4 p.m. to 7 p.m. Monday through Friday year-round. The overnight window, 11 p.m. to 5 a.m. on weekdays, is priced below regular off-peak hours, and on November through April bills a super off-peak window of 10 a.m. to 3 p.m. on weekdays is cheaper still. Weekends and listed holidays are off-peak all day. The plan suits drivers who can charge overnight and stay out of the late-afternoon peak. Enrollment requires owning an EV, and per-kWh prices change by season. APS also offers a time-of-use plan with a demand charge that is open to any residential customer, where a high-power charging session during the peak can raise the monthly bill.
APS does not publish a home charger rebate. The APS Marketplace offers Level 2 smart chargers and shows any instant rebate a customer qualifies for after the customer enters an APS account number, but neither the marketplace nor the APS EV page lists a rebate amount. The SmartCharge program pays a $25 enrollment credit plus $5 per month and works through a supported vehicle or connected charger. Its EV Charging Assistant Rewards option, where APS adjusts charging, is paused for new enrollments with a waitlist. The enrollment page still offers sign-up for EV Data Rewards, which only shares charging data, though the APS EV page describes the program as full, so check the enrollment page before planning on it. APS says business EV charging incentives and make-ready programs are not currently available, so business sites plan projects through an APS EV charging site review and the APS construction process.
APS is a vertically integrated utility that generates and delivers power, and the Arizona Corporation Commission approves its retail rates. A new APS rate case is pending before the Commission, so the prices and time windows above can change once it is decided. APS does not serve all of Arizona: much of metro Phoenix is served by Salt River Project and much of the Tucson area by Tucson Electric Power, so check the bill or the APS service area map before relying on these plans.
Service territory
Arizona
- Apache
- Cochise
- Coconino
- Gila
- Graham
- Greenlee
- Maricopa
- Mohave
- Navajo
- Pima
- Pinal
- Santa Cruz
- Yavapai
- Yuma
Cost to charge
Other utilities in Arizona
State guides
Sources
- APS, EV Overnight Charging 11pm-5am Weekdays service planRetrieved Oct 2026
- APS, Rate Schedule R-EV tariff (Decision No. 79293, effective March 8, 2024)Retrieved Oct 2026
- APS, Time-of-Use 4pm-7pm Weekdays with Demand Charge service planRetrieved Oct 2026
- APS, Rate Schedule R-3 tariff (Decision No. 79293, effective March 8, 2024)Retrieved Oct 2026
- APS, Electric Vehicles and APS (EV programs hub)Retrieved Oct 2026
- APS, About Us (customer count)Retrieved Oct 2026
- APS, 2025 rate case (Docket E-01345A-25-0105)Retrieved Oct 2026
- Arizona Corporation Commission, What is next in the APS rate caseRetrieved Oct 2026
- APS SmartCharge program enrollment pageRetrieved Oct 2026
- APS Marketplace, EV chargingRetrieved Oct 2026
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