Cost to Run a Aquarium in Maryland
Maryland's average residential electricity rate is 21.8¢/kWh as of May 2026 — the 37th cheapest in the country, 18% above the U.S. average. At typical usage (24 hours/day (always on)), a aquarium here costs $15.91 per month.
Per hour
2.2¢
at 50–300 W
Per day
$0.52
24 hours/day (always on)
Per month
$15.91
73 kWh
Per year
$191
876 kWh
By usage level in Maryland
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (12 hrs/day) | $0.26 | $7.95 | $95.48 |
| Typical (24 hrs/day) | $0.52 | $15.91 | $191 |
| Heavy (24 hrs/day) | $1.05 | $31.81 | $382 |
Maryland vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a aquarium in Maryland?
At Maryland's current average residential rate of 21.8¢/kWh (May 2026), a aquarium with typical usage costs about $0.52 per day, $15.91 per month, or $191 per year.
Is running a aquarium in Maryland more expensive than average?
Yes. Maryland's electricity costs about 18% more than the U.S. average, so the same usage costs $15.91 per month here versus $13.42 nationally.
What does electricity cost in Maryland right now?
Maryland residents pay an average of 21.8¢ per kWh as of May 2026 — the 37th cheapest rate of the 51 U.S. jurisdictions we track.