WattCost

Data through April 2026

Cost to run · Arizona · 15.5¢/kWh residential average

How much does it cost to run a room air conditioner in Arizona?

$82/yr · median certified model

Residential electricity in Arizona runs 15.5¢/kWh — 18% under the U.S. average — putting the median certified room air conditioner at about $82 a year, versus $100 nationally.

In the national ranking, Arizona lands at 20 of 51 for what a room air conditioner costs to run. Model choice matters as much as geography: at Arizona rates the most efficient certified model (TCL T05WV9M) costs $42 a year while the most power-hungry (Friedrich KCVL36B30A) costs $325 — a spread of $282 every year. For reference, the national extremes are North Dakota (12.3¢/kWh) and Hawaii (46.6¢/kWh); the same median room air conditioner would cost $66 and $248 a year there.

Arizona
$82
US average
$100
North Dakota
$66
Hawaii
$248
Median certified room air conditioner (532 kWh/yr) per year, at each rate

The cheapest room air conditioners to run at Arizona rates

Top 10 by certified kWh, priced at 15.5¢/kWh
#ModelkWh/yr$/yr in AZ
1TCL T05WV9M274$42
2TCL T05WV9MB274$42
3TCL T05WV9R274$42
4TCL T05WV9RB274$42
5TCL W5WC72274$42
6TCL W5WC72-B274$42
7TCL W5WC72M274$42
8TCL W5WC72M-B274$42
9LG LW6023IVSMmost efficient290$45
10Midea MAW06U1QWTmost efficient298$46

Price any model at Arizona rates

Your rate, your numbers

Per day
23¢
Per month
$6.86
Per year
$82

532 kWh/yr × 15.5¢/kWh = $82/yr

Prefilled with the median certified room air conditioner (532 kWh/yr). Every model page on this site carries its exact certified figure.

Questions, answered with the data

How much does it cost to run a room air conditioner in Arizona?
About $82 a year for the median ENERGY STAR certified room air conditioner, at Arizona's average residential rate of 15.5¢/kWh — that's $6.86 a month.
Is electricity expensive in Arizona?
Arizona's residential average of 15.5¢/kWh is 18% below the U.S. average of 18.8¢/kWh, ranking 20 of 51 jurisdictions (1 = cheapest).
What's the cheapest room air conditioner to run in Arizona?
Among currently certified models, the TCL T05WV9M costs the least at about $42 a year at Arizona rates (274 kWh/yr).
How does Arizona compare with other states?
The same median room air conditioner costs $66 a year in North Dakota (the cheapest state) and $248 in Hawaii (the priciest). Arizona sits at $82.

Keep digging

Rate source: US EIA, average residential price of electricity, see methodology.