Cost to Run a Pool Heater (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 (4 hours/day), a pool heater (heat pump) here costs $91.20 per month.
Per hour
$0.75
at 4,000–11,000 W
Per day
$3.00
4 hours/day
Per month
$91.20
608 kWh
Per year
$1,095
7,300 kWh
By usage level in Washington
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (2 hrs/day) | $1.50 | $45.60 | $548 |
| Typical (4 hrs/day) | $3.00 | $91.20 | $1,095 |
| Heavy (8 hrs/day) | $6.00 | $182 | $2,190 |
Washington vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a pool heater (heat pump) in Washington?
At Washington's current average residential rate of 15¢/kWh (May 2026), a pool heater (heat pump) with typical usage costs about $3.00 per day, $91.20 per month, or $1,095 per year.
Is running a pool heater (heat pump) in Washington more expensive than average?
No — it's cheaper. Washington's rate is about 18% below the U.S. average: $91.20 per month here versus $112 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.