Cost to Run a Heat Pump Water Heater in Maine
Maine's average residential electricity rate is 32.4¢/kWh as of July 2026 — the 49th cheapest in the country, 77% above the U.S. average. At typical usage (3 hours/day), a heat pump water heater here costs $29.55 per month.
Per hour
$0.32
at 400–1,500 W
Per day
$0.97
3 hours/day
Per month
$29.55
91 kWh
Per year
$355
1,095 kWh
By usage level in Maine
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (1.5 hrs/day) | $0.49 | $14.77 | $177 |
| Typical (3 hrs/day) | $0.97 | $29.55 | $355 |
| Heavy (6 hrs/day) | $1.94 | $59.10 | $710 |
Maine vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a heat pump water heater in Maine?
At Maine's current average residential rate of 32.4¢/kWh (July 2026), a heat pump water heater with typical usage costs about $0.97 per day, $29.55 per month, or $355 per year.
Is running a heat pump water heater in Maine more expensive than average?
Yes. Maine's electricity costs about 77% more than the U.S. average, so the same usage costs $29.55 per month here versus $16.69 nationally.
What does electricity cost in Maine right now?
Maine residents pay an average of 32.4¢ per kWh as of July 2026 — the 49th cheapest rate of the 51 U.S. jurisdictions we track.