Cost to Run a Heat Pump Water Heater in Delaware
Delaware's average residential electricity rate is 18.5¢/kWh as of July 2026 — the 33rd cheapest in the country, 1% above the U.S. average. At typical usage (3 hours/day), a heat pump water heater here costs $16.87 per month.
Per hour
$0.18
at 400–1,500 W
Per day
$0.55
3 hours/day
Per month
$16.87
91 kWh
Per year
$203
1,095 kWh
By usage level in Delaware
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (1.5 hrs/day) | $0.28 | $8.44 | $101 |
| Typical (3 hrs/day) | $0.55 | $16.87 | $203 |
| Heavy (6 hrs/day) | $1.11 | $33.74 | $405 |
Delaware 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 Delaware?
At Delaware's current average residential rate of 18.5¢/kWh (July 2026), a heat pump water heater with typical usage costs about $0.55 per day, $16.87 per month, or $203 per year.
Is running a heat pump water heater in Delaware more expensive than average?
It's almost exactly the U.S. average: $16.87 per month here versus $16.69 nationally.
What does electricity cost in Delaware right now?
Delaware residents pay an average of 18.5¢ per kWh as of July 2026 — the 33rd cheapest rate of the 51 U.S. jurisdictions we track.