Cost to Run a Heat Pump Water Heater in Delaware
Delaware's average residential electricity rate is 18.8¢/kWh as of April 2026 — the 33rd cheapest in the country, 0% above the U.S. average. At typical usage (3 hours/day), a heat pump water heater here costs $17.15 per month.
Per hour
$0.19
at 400–1,500 W
Per day
$0.56
3 hours/day
Per month
$17.15
91 kWh
Per year
$206
1,095 kWh
By usage level in Delaware
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (1.5 hrs/day) | $0.28 | $8.57 | $103 |
| Typical (3 hrs/day) | $0.56 | $17.15 | $206 |
| Heavy (6 hrs/day) | $1.13 | $34.29 | $412 |
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 18.8¢/kWh (April 2026), a heat pump water heater with typical usage costs about $0.56 per day, $17.15 per month, or $206 per year.
Is running a heat pump water heater in Delaware more expensive than average?
It's almost exactly the U.S. average: $17.15 per month here versus $17.15 nationally.
What does electricity cost in Delaware right now?
Delaware residents pay an average of 18.8¢ per kWh as of April 2026 — the 33rd cheapest rate of the 51 U.S. jurisdictions we track.