Cost to Run a Aquarium 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 (24 hours/day (always on)), a aquarium here costs $10.73 per month.
Per hour
1.5¢
at 50–300 W
Per day
$0.35
24 hours/day (always on)
Per month
$10.73
73 kWh
Per year
$129
876 kWh
By usage level in Washington
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (12 hrs/day) | $0.18 | $5.36 | $64.39 |
| Typical (24 hrs/day) | $0.35 | $10.73 | $129 |
| Heavy (24 hrs/day) | $0.71 | $21.45 | $258 |
Washington vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a aquarium in Washington?
At Washington's current average residential rate of 14.7¢/kWh (July 2026), a aquarium with typical usage costs about $0.35 per day, $10.73 per month, or $129 per year.
Is running a aquarium in Washington more expensive than average?
No — it's cheaper. Washington's rate is about 20% below the U.S. average: $10.73 per month here versus $13.35 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.