Otter Tail Power Co Rates: Average Bill & Price per kWh
Residential rates for Otter Tail Power Co and how they compare to the South Dakota average — 2024 EIA-861 annual data.
Residential customers of Otter Tail Power Co average $111.78/month at 10.93¢/kWh — below the South Dakota average of $133.30.
Where Otter Tail Power Co rates are heading
Annual residential figures from Form EIA-861, 2019–2024.
| Year | Rate | Avg bill | Res. customers |
|---|---|---|---|
| 2019 | 10.44¢/kWh | $121.60/mo | 8,800 |
| 2020 | 9.94¢/kWh | $110.57/mo | 8,858 |
| 2021 | 10.66¢/kWh | $114.55/mo | 8,945 |
| 2022 | 11.05¢/kWh | $125.13/mo | 8,972 |
| 2023 | 11.12¢/kWh | $121.87/mo | 9,006 |
| 2024 | 10.93¢/kWh | $111.78/mo | 9,048 |
Rate context in South Dakota
Statewide residential price trend (12 months) — context for Otter Tail Power Co's 2024 annual figure.
Otter Tail Power Co vs its state
Annual utility averages next to the latest statewide monthly figure — different windows, both labeled.
| Measure | Otter Tail Power Co | South Dakota (latest month) |
|---|---|---|
| Avg bill | $111.78/mo | $133.30/mo |
| Rate | 10.93¢/kWh | 15.36¢/kWh |
Common questions
How much is the average electric bill with Otter Tail Power Co?
Otter Tail Power Co residential customers averaged $111.78 per month in 2024 (EIA-861 annual data) — about $1,341.37 per year.
What does Otter Tail Power Co charge per kWh?
Otter Tail Power Co averaged 10.93¢ per kWh for residential service in 2024 (annual revenue divided by sales, EIA-861). Actual rates depend on your plan and season.
How does Otter Tail Power Co compare to the South Dakota average?
Otter Tail Power Co bills average $111.78 — lower than the South Dakota average of $133.30 (latest EIA month).
How many customers does Otter Tail Power Co serve?
Otter Tail Power Co served 9,048 residential customers in 2024, per EIA-861 — one of the largest utilities we track in SD.
Data: Form EIA-861, 2024 annual residential figures for Otter Tail Power Co. Bill = residential revenue ÷ customers ÷ 12; rate = revenue ÷ sales. State context uses the latest EIA monthly data. See methodology.