Data through April 2026
Cost to run · Maine · 28.4¢/kWh residential average
How much does it cost to run a room air conditioner in Maine?
$151/yr · median certified model
At 28.4¢/kWh, Maine ranks among the priciest states for power. The typical certified room air conditioner runs about $151 annually here, which makes choosing an efficient model worth actual dollars, not rounding error.
In the national ranking, Maine lands at 46 of 51 for what a room air conditioner costs to run. At local rates, certified models span $78 (TCL T05WV9M) to $596 (Friedrich KCVL36B30A) per year — $518 of annual headroom that depends entirely on which unit you buy. For reference, the national extremes are North Dakota (12.3¢/kWh) and Hawaii (46.6¢/kWh); the same median room air conditioner would cost $66 and $248 a year there.
The cheapest room air conditioners to run at Maine rates
| # | Model | kWh/yr | $/yr in ME |
|---|---|---|---|
| 1 | TCL T05WV9M | 274 | $78 |
| 2 | TCL T05WV9MB | 274 | $78 |
| 3 | TCL T05WV9R | 274 | $78 |
| 4 | TCL T05WV9RB | 274 | $78 |
| 5 | TCL W5WC72 | 274 | $78 |
| 6 | TCL W5WC72-B | 274 | $78 |
| 7 | TCL W5WC72M | 274 | $78 |
| 8 | TCL W5WC72M-B | 274 | $78 |
| 9 | LG LW6023IVSMmost efficient | 290 | $83 |
| 10 | Midea MAW06U1QWTmost efficient | 298 | $85 |
Price any model at Maine rates
Your rate, your numbers
- Per day
- 41¢
- Per month
- $12.60
- Per year
- $151
532 kWh/yr × 28.4¢/kWh = $151/yr
Prefilled with the median certified room air conditioner (532 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 a room air conditioner in Maine?
- About $151 a year for the median ENERGY STAR certified room air conditioner, at Maine's average residential rate of 28.4¢/kWh — that's $12.60 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 room air conditioner to run in Maine?
- Among currently certified models, the TCL T05WV9M costs the least at about $78 a year at Maine rates (274 kWh/yr).
- How does Maine compare with other states?
- The same median room air conditioner costs $66 a year in North Dakota (the cheapest state) and $248 in Hawaii (the priciest). Maine sits at $151.
Keep digging
- All certified room air conditioners compared
- Room Air Conditioners costs in Alaska (rank 44 of 51)
- Room Air Conditioners costs in Rhode Island (rank 45 of 51)
- Room Air Conditioners costs in Massachusetts (rank 47 of 51)
- Room Air Conditioners costs in New York (rank 48 of 51)
- Running an air purifier in Maine
- Running a clothes dryer in Maine
- Running a clothes washer in Maine
- Running a computer monitor in Maine
Rate source: US EIA, average residential price of electricity, see methodology.