Cost to Run a CPAP Machine 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 (8 hours/day), a cpap machine here costs $1.53 per month.
Per hour
0.6¢
at 30–90 W
Per day
5.0¢
8 hours/day
Per month
$1.53
9.7 kWh
Per year
$18.34
117 kWh
By usage level in South Dakota
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | 2.5¢ | $0.76 | $9.17 |
| Typical (8 hrs/day) | 5.0¢ | $1.53 | $18.34 |
| Heavy (16 hrs/day) | $0.10 | $3.05 | $36.68 |
South Dakota vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a cpap machine in South Dakota?
At South Dakota's current average residential rate of 15.7¢/kWh (May 2026), a cpap machine with typical usage costs about 5.0¢ per day, $1.53 per month, or $18.34 per year.
Is running a cpap machine in South Dakota more expensive than average?
No — it's cheaper. South Dakota's rate is about 15% below the U.S. average: $1.53 per month here versus $1.79 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.