Cost to Run a Heat Pump in Washington
Washington's average residential electricity rate is 15¢/kWh as of May 2026 — the 16th cheapest in the country, 18% below the U.S. average. At typical usage (8 hours/day), a heat pump here costs $109 per month.
Per hour
$0.45
at 1,000–5,000 W
Per day
$3.60
8 hours/day
Per month
$109
730 kWh
Per year
$1,314
8,760 kWh
By usage level in Washington
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $1.80 | $54.72 | $657 |
| Typical (8 hrs/day) | $3.60 | $109 | $1,314 |
| Heavy (16 hrs/day) | $7.20 | $219 | $2,628 |
Washington vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a heat pump in Washington?
At Washington's current average residential rate of 15¢/kWh (May 2026), a heat pump with typical usage costs about $3.60 per day, $109 per month, or $1,314 per year.
Is running a heat pump in Washington more expensive than average?
No — it's cheaper. Washington's rate is about 18% below the U.S. average: $109 per month here versus $134 nationally.
What does electricity cost in Washington right now?
Washington residents pay an average of 15¢ per kWh as of May 2026 — the 16th cheapest rate of the 51 U.S. jurisdictions we track.