Cost to Run a Electric Water Heater in Arizona
Arizona's average residential electricity rate is 15.5¢/kWh as of April 2026 — the 20th cheapest in the country, 18% below the U.S. average. At typical usage (2.9 hours/day), a electric water heater here costs $61.49 per month.
Per hour
$0.70
at 3,500–5,500 W
Per day
$2.02
2.9 hours/day
Per month
$61.49
397 kWh
Per year
$738
4,763 kWh
By usage level in Arizona
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (1.45 hrs/day) | $1.01 | $30.75 | $369 |
| Typical (2.9 hrs/day) | $2.02 | $61.49 | $738 |
| Heavy (5.8 hrs/day) | $4.05 | $123 | $1,477 |
Arizona vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a electric water heater in Arizona?
At Arizona's current average residential rate of 15.5¢/kWh (April 2026), a electric water heater with typical usage costs about $2.02 per day, $61.49 per month, or $738 per year.
Is running a electric water heater in Arizona more expensive than average?
No — it's cheaper. Arizona's rate is about 18% below the U.S. average: $61.49 per month here versus $74.58 nationally.
What does electricity cost in Arizona right now?
Arizona residents pay an average of 15.5¢ per kWh as of April 2026 — the 20th cheapest rate of the 51 U.S. jurisdictions we track.