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Cost to run an electric water heater in Delaware
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$0.75/hour
Electric Water Heater at 4,000 W in Delaware (18.70¢/kWh) · $68.22/month at 3 h/day
By hours of use
| Use | Per day | Per month | Per year |
|---|---|---|---|
| 1 h/day | $0.75 | $22.74 | $273.02 |
| 2 h/day | $1.50 | $45.48 | $546.04 |
| 3 h/day | $2.24 | $68.22 | $819.06 |
| 4 h/day | $2.99 | $90.96 | $1,092.08 |
| 8 h/day | $5.98 | $181.91 | $2,184.16 |
| 12 h/day | $8.98 | $272.87 | $3,276.24 |
| 24 h/day | $17.95 | $545.74 | $6,552.48 |
Tank water heaters use 3,000-5,500 W elements; a family typically runs them 2-4 hours a day. Heat-pump models use about a third.
Same appliance, nearby states
FAQ
How much does it cost to run an electric water heater in Delaware?
At 4,000 W and 18.70¢/kWh: $0.75 per hour, $2.24 per day and $68.22 per month at 3 h/day.
How does Delaware compare with other states?
The same use costs $46.40/month in Nevada (cheapest) and $172.11/month in Hawaii (most expensive); the US average is $66.25.
Price: EIA Electric Power Monthly, Table 5.6.A (residential, August 2026 preliminary; released October 23, 2026).
Electric Water Heater cost calculator · Electricity cost in Delaware
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