Data through April 2026
Cost to run · Maine · 28.4¢/kWh residential average
How much does it cost to run an electric water heater in Maine?
$308/yr · median certified model
At 28.4¢/kWh, Maine ranks among the priciest states for power. The typical certified electric water heater runs about $308 annually here, which makes choosing an efficient model worth actual dollars, not rounding error.
Maine ranks 46 of 51 jurisdictions for electric water heater running costs — solidly mid-table. Model choice matters as much as geography: at Maine rates the most efficient certified model (Friedrich PROH40 T2 FD400-15) costs $183 a year while the most power-hungry (Smart Solar SSG2-ES 120) costs $495 — a spread of $312 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 Maine rates
| # | Model | kWh/yr | $/yr in ME |
|---|---|---|---|
| 1 | Friedrich PROH40 T2 FD400-15 | 643 | $183 |
| 2 | Rheem PROPH40 T2 RH375-15 | 643 | $183 |
| 3 | Rheem PROPH40 T2 RH400-15 | 643 | $183 |
| 4 | Rheem XE40T10H22U0 | 643 | $183 |
| 5 | Rheem XE40T10H22U1 | 643 | $183 |
| 6 | Richmond 10E40-HP515 | 643 | $183 |
| 7 | Richmond 10E40-HP5U15 | 643 | $183 |
| 8 | Ruud PROUH40 T2 RU375-15 | 643 | $183 |
| 9 | Ruud PROUH40 T2 RU400-15 | 643 | $183 |
| 10 | Eco-Logical OMNI-50HP1-1A | 681 | $194 |
Price any model at Maine rates
Your rate, your numbers
- Per day
- 84¢
- Per month
- $25.63
- Per year
- $308
1,082 kWh/yr × 28.4¢/kWh = $308/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 Maine?
- About $308 a year for the median ENERGY STAR certified electric water heater, at Maine's average residential rate of 28.4¢/kWh — that's $25.63 a month.
- Is electricity expensive in Maine?
- Maine's residential average of 28.4¢/kWh is 51% above the U.S. average of 18.8¢/kWh, ranking 46 of 51 jurisdictions (1 = cheapest).
- What's the cheapest electric water heater to run in Maine?
- Among currently certified models, the Friedrich PROH40 T2 FD400-15 costs the least at about $183 a year at Maine rates (643 kWh/yr).
- How does Maine 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). Maine sits at $308.
Keep digging
- All certified water heaters (electric) compared
- Water Heaters (Electric) costs in Alaska (rank 44 of 51)
- Water Heaters (Electric) costs in Rhode Island (rank 45 of 51)
- Water Heaters (Electric) costs in Massachusetts (rank 47 of 51)
- Water Heaters (Electric) costs in New York (rank 48 of 51)
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Rate source: US EIA, average residential price of electricity, see methodology.