Rates by state / South Dakota / Otter Tail Power Co
Investor Owned · 9,094 residential customers
Otter Tail Power Co electricity rates
Residential customers paid an average of 11.4¢ per kWh in 2025, 20% below the South Dakota average of 14.2¢ for the latest 12 months.
Average rate
11.4¢/kWh
2025, all residential revenue ÷ kWh
Average bill
$123/mo
At 1,080 kWh a month
1-year change
+4.5%
5 years: +14.9%
Average rate by year
20209.9¢
202110.7¢
202211.1¢
202311.1¢
202410.9¢
202511.4¢
Otter Tail Power Co bill at different usage levels
Estimated monthly bill at Otter Tail Power Co's 2025 average rate of 11.4¢ per kWh. Actual bills vary with your plan, fixed charges and taxes.
| Monthly use | Otter Tail Power Co | South Dakota average |
|---|---|---|
| 500 kWh | $57 | $71 |
| 750 kWh | $86 | $107 |
| 1,000 kWh (about average here) | $114 | $142 |
| 1,500 kWh | $171 | $213 |
| 2,000 kWh | $228 | $284 |
Other utilities in South Dakota
| Utility | Customers | Rate |
|---|---|---|
| Northern States Power Co - Minnesota | 94,137 | 13.1¢ |
| Black Hills Power, Inc. | 67,608 | 15.1¢ |
| NorthWestern Energy - (SD) | 51,787 | 13.3¢ |
| Sioux Valley SW Elec Coop | 22,989 | 13.9¢ |
| Southeastern Electric Coop Inc - (SD) | 20,959 | 13.0¢ |
| West River Electric Assn Inc | 18,975 | 15.2¢ |
| Watertown Municipal Utilities | 11,775 | 9.3¢ |
| City of Brookings - (SD) | 10,769 | 10.7¢ |
Otter Tail Power Co: common questions
- How much does Otter Tail Power Co charge per kWh?
- Otter Tail Power Co residential customers paid an average of 11.4¢ per kWh in 2025, counting all charges, according to EIA Form 861 data.
- What is the average Otter Tail Power Co electric bill?
- The average Otter Tail Power Co household used 1,080 kWh a month in 2025, which works out to about $123 a month at the average rate.
- Is Otter Tail Power Co cheaper than other utilities in South Dakota?
- Otter Tail Power Co's average rate is 20% below the South Dakota average of 14.2¢. 6 of 21 utilities in South Dakota have a lower average rate.
- Did Otter Tail Power Co raise rates?
- Otter Tail Power Co's average residential rate changed +4.5% from 2024 to 2025 and +14.9% since 2020.
- Is my Otter Tail Power Co bill too high?
- Enter the kWh and amount from your bill in the free bill check on AverageElectricBill.com. It compares your use with similar South Dakota homes and your rate with Otter Tail Power Co's average.
Got a Otter Tail Power Co bill?
Check my billSource: U.S. EIA Form EIA-861, 2025 final data.