Data through June 2026
Cost to run · Washington · 14.9¢/kWh residential average
How much does it cost to run a room air conditioner in Washington?
$79/yr · median certified model
Washington's 14.9¢/kWh rate undercuts the national average by 19%, so the typical certified room air conditioner costs roughly $79 a year here instead of $98.
Washington ranks 13 of 51 jurisdictions for room air conditioner running costs — solidly mid-table. Model choice matters as much as geography: at Washington rates the most efficient certified model (Brothers 102372) costs $39 a year while the most power-hungry (Friedrich KCVL36B30A) costs $313 — a spread of $274 every year. For reference, the national extremes are Nevada (13.1¢/kWh) and Hawaii (52.7¢/kWh); the same median room air conditioner would cost $70 and $280 a year there.
The cheapest room air conditioners to run at Washington rates
| # | Model | kWh/yr | $/yr in WA |
|---|---|---|---|
| 1 | Brothers 102372 | 260 | $39 |
| 2 | Midea MWEUWA-05CRFN8-BCN4 | 260 | $39 |
| 3 | Vissani VAW05V1KWT | 260 | $39 |
| 4 | TCL T05WV9M | 274 | $41 |
| 5 | TCL T05WV9MB | 274 | $41 |
| 6 | TCL T05WV9R | 274 | $41 |
| 7 | TCL T05WV9RB | 274 | $41 |
| 8 | TCL W5WC72 | 274 | $41 |
| 9 | TCL W5WC72-B | 274 | $41 |
| 10 | TCL W5WC72M | 274 | $41 |
Price any model at Washington rates
Your rate, your numbers
- Per day
- 22¢
- Per month
- $6.61
- Per year
- $79
532 kWh/yr × 14.9¢/kWh = $79/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 Washington?
- About $79 a year for the median ENERGY STAR certified room air conditioner, at Washington's average residential rate of 14.9¢/kWh — that's $6.61 a month.
- Is electricity expensive in Washington?
- Washington's residential average of 14.9¢/kWh is 19% below the U.S. average of 18.3¢/kWh, ranking 13 of 51 jurisdictions (1 = cheapest).
- What's the cheapest room air conditioner to run in Washington?
- Among currently certified models, the Brothers 102372 costs the least at about $39 a year at Washington rates (260 kWh/yr).
- How does Washington compare with other states?
- The same median room air conditioner costs $70 a year in Nevada (the cheapest state) and $280 in Hawaii (the priciest). Washington sits at $79.
Keep digging
- All certified room air conditioners compared
- Room Air Conditioners costs in North Carolina (rank 11 of 51)
- Room Air Conditioners costs in Mississippi (rank 12 of 51)
- Room Air Conditioners costs in New Mexico (rank 14 of 51)
- Room Air Conditioners costs in Florida (rank 15 of 51)
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Rate source: US EIA, average residential price of electricity, see methodology.