Data through April 2026
Cost to run · Delaware · 18.8¢/kWh residential average
How much does it cost to run an electric water heater in Delaware?
$203/yr · median certified model
Electricity in Delaware is priced within a few percent of the U.S. average — 18.8¢/kWh — which puts the typical certified electric water heater at about $203 annually, essentially the national number.
In the national ranking, Delaware lands at 33 of 51 for what an electric water heater costs to run. Model choice matters as much as geography: at Delaware rates the most efficient certified model (Friedrich PROH40 T2 FD400-15) costs $121 a year while the most power-hungry (Smart Solar SSG2-ES 120) costs $327 — a spread of $206 every year. For reference, the national extremes are North Dakota (12.3¢/kWh) and Hawaii (46.6¢/kWh); the same median electric water heater would cost $134 and $504 a year there.
The cheapest water heaters (electric) to run at Delaware rates
| # | Model | kWh/yr | $/yr in DE |
|---|---|---|---|
| 1 | Friedrich PROH40 T2 FD400-15 | 643 | $121 |
| 2 | Rheem PROPH40 T2 RH375-15 | 643 | $121 |
| 3 | Rheem PROPH40 T2 RH400-15 | 643 | $121 |
| 4 | Rheem XE40T10H22U0 | 643 | $121 |
| 5 | Rheem XE40T10H22U1 | 643 | $121 |
| 6 | Richmond 10E40-HP515 | 643 | $121 |
| 7 | Richmond 10E40-HP5U15 | 643 | $121 |
| 8 | Ruud PROUH40 T2 RU375-15 | 643 | $121 |
| 9 | Ruud PROUH40 T2 RU400-15 | 643 | $121 |
| 10 | Eco-Logical OMNI-50HP1-1A | 681 | $128 |
Price any model at Delaware rates
Your rate, your numbers
- Per day
- 56¢
- Per month
- $16.94
- Per year
- $203
1,082 kWh/yr × 18.8¢/kWh = $203/yr
Prefilled with the median certified electric water heater (1,082 kWh/yr). Every model page on this site carries its exact certified figure.
Questions, answered with the data
- How much does it cost to run an electric water heater in Delaware?
- About $203 a year for the median ENERGY STAR certified electric water heater, at Delaware's average residential rate of 18.8¢/kWh — that's $16.94 a month.
- Is electricity expensive in Delaware?
- Delaware's residential average of 18.8¢/kWh is 0% below the U.S. average of 18.8¢/kWh, ranking 33 of 51 jurisdictions (1 = cheapest).
- What's the cheapest electric water heater to run in Delaware?
- Among currently certified models, the Friedrich PROH40 T2 FD400-15 costs the least at about $121 a year at Delaware rates (643 kWh/yr).
- How does Delaware compare with other states?
- The same median electric water heater costs $134 a year in North Dakota (the cheapest state) and $504 in Hawaii (the priciest). Delaware sits at $203.
Keep digging
- All certified water heaters (electric) compared
- Water Heaters (Electric) costs in Alabama (rank 31 of 51)
- Water Heaters (Electric) costs in Indiana (rank 32 of 51)
- Water Heaters (Electric) costs in Wisconsin (rank 34 of 51)
- Water Heaters (Electric) costs in Ohio (rank 35 of 51)
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Rate source: US EIA, average residential price of electricity, see methodology.