Cost to Run a Reptile Heat Lamp / Terrarium in South Dakota
South Dakota's average residential electricity rate is 15.4¢/kWh as of July 2026 — the 19th cheapest in the country, 16% below the U.S. average. At typical usage (12 hours/day), a reptile heat lamp / terrarium here costs $5.62 per month.
Per hour
1.5¢
at 50–250 W
Per day
$0.18
12 hours/day
Per month
$5.62
36 kWh
Per year
$67.45
438 kWh
By usage level in South Dakota
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (6 hrs/day) | 9.2¢ | $2.81 | $33.73 |
| Typical (12 hrs/day) | $0.18 | $5.62 | $67.45 |
| Heavy (24 hrs/day) | $0.37 | $11.24 | $135 |
South Dakota vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a reptile heat lamp / terrarium in South Dakota?
At South Dakota's current average residential rate of 15.4¢/kWh (July 2026), a reptile heat lamp / terrarium with typical usage costs about $0.18 per day, $5.62 per month, or $67.45 per year.
Is running a reptile heat lamp / terrarium in South Dakota more expensive than average?
No — it's cheaper. South Dakota's rate is about 16% below the U.S. average: $5.62 per month here versus $6.68 nationally.
What does electricity cost in South Dakota right now?
South Dakota residents pay an average of 15.4¢ per kWh as of July 2026 — the 19th cheapest rate of the 51 U.S. jurisdictions we track.