Cost to Run a Aquarium in South Dakota
South Dakota's average residential electricity rate is 15.7¢/kWh as of May 2026 — the 21st cheapest in the country, 15% below the U.S. average. At typical usage (24 hours/day (always on)), a aquarium here costs $11.45 per month.
Per hour
1.6¢
at 50–300 W
Per day
$0.38
24 hours/day (always on)
Per month
$11.45
73 kWh
Per year
$138
876 kWh
By usage level in South Dakota
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (12 hrs/day) | $0.19 | $5.73 | $68.77 |
| Typical (24 hrs/day) | $0.38 | $11.45 | $138 |
| Heavy (24 hrs/day) | $0.75 | $22.91 | $275 |
South Dakota vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a aquarium in South Dakota?
At South Dakota's current average residential rate of 15.7¢/kWh (May 2026), a aquarium with typical usage costs about $0.38 per day, $11.45 per month, or $138 per year.
Is running a aquarium in South Dakota more expensive than average?
No — it's cheaper. South Dakota's rate is about 15% below the U.S. average: $11.45 per month here versus $13.42 nationally.
What does electricity cost in South Dakota right now?
South Dakota residents pay an average of 15.7¢ per kWh as of May 2026 — the 21st cheapest rate of the 51 U.S. jurisdictions we track.