Electricity rates in Tucson, AZ
Tucson (population 548,371) is served by Tucson Electric Power. A typical home on its cheapest plan open to any household, TRREST, pays about $170 a month, 16.21¢ per kWh all-in: 5% above the Arizona average of the last 12 months.
Utility TEPPopulation Census 2025 estimateState average EIA, 12 months to July 2026
Typical all-in priceTRREST
TEP plans for a Tucson home
| Plan | Typical bill | All-in ¢/kWh | Summer weekday windows | EV, 1,000 mi |
|---|---|---|---|---|
| TRRESChecked | $175/mo | 16.60 | Same price all day | $42/mo |
| TRRESTChecked | $170/mo | 16.21 | Peak 3 pm–7 pm | $39/mo |
Typical bill: average Arizona use of 1,052 kWh a month, shaped hour by hour (NREL ResStock), averaged over the year. EV: Tesla Model Y Long Range AWD, 275 kWh a month from the wall, charging from its cheapest start hour. Full TEP tariff details and sources.
Tucson electricity: common questions
Who provides electricity in Tucson, AZ?
Tucson Electric Power serves Tucson, according to About TEP – Tucson Electric Power. The name on your bill is the authority.
How much is electricity per kWh in Tucson?
On TEP’s TRREST plan, a typical Arizona home using 1,052 kWh a month pays about 16.21¢ per kWh all-in before taxes, or $170 a month. The Arizona average over the last 12 months was 15.40¢ (EIA).
How much does it cost to charge an EV in Tucson?
Driving 1,000 miles a month in a Tesla Model Y Long Range AWD adds about $39 a month on TEP’s TRREST plan when charging starts at its cheapest hour (12 am), against about $185 of gasoline for a 25.5 mpg car.
When is electricity cheapest in Tucson?
Only on a time-of-use plan does the hour matter. On TEP’s TRREST, summer weekday prices are highest in these windows: TRREST: Peak 3 pm–7 pm. Running dishwashers, laundry and EV charging outside them costs less. Find the cheapest hour for an appliance.
Calculators with TEP preloaded
Utility for Tucson: About TEP – Tucson Electric Power. Sources: population, Census Bureau Vintage 2025 estimates; city location, Census Gazetteer; service territory, Electric Retail Service Territories (HIFLD/ORNL, from EIA-861); tariffs, see the TEP page.