Cost to Run a Aquarium in Hawaii
Hawaii's average residential electricity rate is 52¢/kWh as of May 2026 — the 51st cheapest in the country, 183% above the U.S. average. At typical usage (24 hours/day (always on)), a aquarium here costs $37.94 per month.
Per hour
5.2¢
at 50–300 W
Per day
$1.25
24 hours/day (always on)
Per month
$37.94
73 kWh
Per year
$456
876 kWh
By usage level in Hawaii
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (12 hrs/day) | $0.62 | $18.97 | $228 |
| Typical (24 hrs/day) | $1.25 | $37.94 | $456 |
| Heavy (24 hrs/day) | $2.50 | $75.88 | $911 |
Hawaii vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a aquarium in Hawaii?
At Hawaii's current average residential rate of 52¢/kWh (May 2026), a aquarium with typical usage costs about $1.25 per day, $37.94 per month, or $456 per year.
Is running a aquarium in Hawaii more expensive than average?
Yes. Hawaii's electricity costs about 183% more than the U.S. average, so the same usage costs $37.94 per month here versus $13.42 nationally.
What does electricity cost in Hawaii right now?
Hawaii residents pay an average of 52¢ per kWh as of May 2026 — the 51st cheapest rate of the 51 U.S. jurisdictions we track.