Cost to Run a Ductless Mini-Split in Washington
Washington's average residential electricity rate is 14.7¢/kWh as of July 2026 — the 13th cheapest in the country, 20% below the U.S. average. At typical usage (8 hours/day), a ductless mini-split here costs $28.60 per month.
Per hour
$0.12
at 400–2,000 W
Per day
$0.94
8 hours/day
Per month
$28.60
195 kWh
Per year
$343
2,336 kWh
By usage level in Washington
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.47 | $14.30 | $172 |
| Typical (8 hrs/day) | $0.94 | $28.60 | $343 |
| Heavy (16 hrs/day) | $1.88 | $57.20 | $687 |
Washington vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a ductless mini-split in Washington?
At Washington's current average residential rate of 14.7¢/kWh (July 2026), a ductless mini-split with typical usage costs about $0.94 per day, $28.60 per month, or $343 per year.
Is running a ductless mini-split in Washington more expensive than average?
No — it's cheaper. Washington's rate is about 20% below the U.S. average: $28.60 per month here versus $35.60 nationally.
What does electricity cost in Washington right now?
Washington residents pay an average of 14.7¢ per kWh as of July 2026 — the 13th cheapest rate of the 51 U.S. jurisdictions we track.