Cost to Run a Aquarium in Hawaii
Hawaii's average residential electricity rate is 48¢/kWh as of July 2026 — the 51st cheapest in the country, 162% above the U.S. average. At typical usage (24 hours/day (always on)), a aquarium here costs $35.02 per month.
Per hour
4.8¢
at 50–300 W
Per day
$1.15
24 hours/day (always on)
Per month
$35.02
73 kWh
Per year
$420
876 kWh
By usage level in Hawaii
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (12 hrs/day) | $0.58 | $17.51 | $210 |
| Typical (24 hrs/day) | $1.15 | $35.02 | $420 |
| Heavy (24 hrs/day) | $2.30 | $70.04 | $841 |
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 48¢/kWh (July 2026), a aquarium with typical usage costs about $1.15 per day, $35.02 per month, or $420 per year.
Is running a aquarium in Hawaii more expensive than average?
Yes. Hawaii's electricity costs about 162% more than the U.S. average, so the same usage costs $35.02 per month here versus $13.35 nationally.
What does electricity cost in Hawaii right now?
Hawaii residents pay an average of 48¢ per kWh as of July 2026 — the 51st cheapest rate of the 51 U.S. jurisdictions we track.