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Electric vehicles (EVs) cost less to fuel, leave the atmosphere cleaner and help make us energy independent without compromising comfort safety or performance. As the only vehicles that produce zero tailpipe emissions, EVs make environmental sense.

decades of expertise

​Our EV expertise dates back to the 1960s when we were the first utility to commercialize quick-charging capabilities, reducing charging time from hours to minutes. We remain committed to helping EV owners get up to speed and safely plugged in.


ev time-of-use plan

In 2011, the Arizona Corporation Commission approved a residential time-of-use plan to support customers purchasing EVs. The 3-year pilot, recently extended to 5 years, lets you save money by charging your EV at night and other times of low demand. We’re working with EV owners to study how and where you prefer to charge your car.

rate impact
We’ve compiled information to help you understand how owning an EV will affect your current service plan.
​plan super off-peak​ ​off-peak on-peak​
ev time-of-use​ $196/year​ $302/year​ $1052/year​
standard​ -​ $642/year​ ​$642/year
time advantage 7-noon​ -​ ​$306/year ​$1007/year

combined advantage 7-noon​

-​ $215-$858/year​ $347-$896/year​
time advantage super peak​ -​ $263/year​ $1105/year​
time advantage 9-9​ -​ $283/year​ ​$743/year
combined advantage 9-9​ -​ $203-$650/year​ $311-$758/year​
Nissan Leaf achieves 100 miles per full charge (24 kWh) source
Results based on driving 400 miles/week, every week. (70 miles per weekday, 25 on Saturday and Sunday. source
Combined Advantage rates include a demand charge. The yearly cost range reflects zero impact on demand to a 6.6 kW demand increase.
The ET-EV rate will be available until December 31, 2015. This rate may be discontinued after the research period is complete. ​

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thinking about buying an ev?
If you’re thinking about buying a plug-in EV, you’ll want to consider the electric impact on your home or business.
Some things to consider:
  • plug-in hybrid or battery electric car
  • how much you drive on a typical day
  • whether your home’s electrical panel and wiring are configured for charging your car battery
  • the best service plan for charging your car
  • the best time of day to charge your car
  • whether you need to hire a contractor or secure permits for any electrical upgrades

common terms

Our list of common terms will help you navigate the language of electric vehicles.

electric vehicle (ev)
a vehicle using a battery charged solely by the electric grid
hybrid electric vehicle (hev)
a vehicle that combines a battery recharged by a combination of dynamic braking with a traditional internal combustion engine
internal combustion engine
a traditional gas-powered vehicle
plug-in hybrid electric vehicle (phev)
an HEV that also can have its battery recharged from the grid
time-of-use service plan
an electric service plan designed to reward customers for shifting electric use away from times of peak demand, encouraging EV charging at night
vehicle-to-building (v2b)
a concept encouraging use of a vehicle’s battery as a source of back-up power or offset to a building’s electric load
kilowatt (kW)
a standard measure of electricity usage: 1kW = 1,000 watts; a typical home uses 5 to 6 kW of power on peak days
alternating current (ac)
a type of electric flow that periodically changes direction; electrical outlets in a typical U.S. home are AC.
direct current (dc)
a direct flow of electric charge
electric vehicle supply equipment (evse)
a power control station or equipment required to charge an EV
level 1 charge
basic charging type using a standard household plug (120 volts AC, 15-20 amp circuit); charging typically takes 8 to 12 hours at 1 to 2 kW of peak demand
level 2 charge
240 volts AC, 40 amp circuit charging station; charging typically takes 4 to 6 hours at 6 to 8 kW of peak demand (expected to be the primary residential application)
level 3 charge or dc fast charge
480 volts AC, three-phase service where 50% of a battery can be recharged within 10 to 15 minutes, up to 200 kW of peak demand.
ev initiatives
From supporting the installation of charging stations throughout Arizona to helping you locate and install your own charging station, we are committed initiatives promoting the adoption of EVs.

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contact us
To contact us about your electric vehicle questions, email us and include:
  • your name
  • address
  • phone number

If you are interested in enrolling in the electric vehicle time-of-use plan, please attach a copy of your vehicle registration.

An electric vehicle specialist will contact you within 24 hours (Monday – Friday).

learn more about electric vehicles was established by leading automakers, utilities (including APS), battery and charging manufacturers to educate consumers, policymakers and key industry sectors on the benefits of plug-in electric vehicles. You’ll find all the information you need about owning and operating an electric car, including types of plug-in electric vehicles, charging, costs, incentives, benefits and more.

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