Otter Tail Power Co Electricity Rates and Average Bill (Minnesota)
Data through August 2026 (the latest month EIA has published) · Updated October 31, 2026
As of August 2026, Otter Tail Power Co's residential customers in Minnesota paid an average effective rate of 14.06¢/kWh with an average monthly bill of $122.93, per EIA Form 861-M data. That rate is 3.1¢ below the Minnesota average of 17.20¢/kWh; the U.S. average is 18.16¢/kWh.
Rate trend vs the Minnesota average
View this chart as a table (last 12 months)
| Month | Rate (¢/kWh) | Avg bill ($/mo) | Avg usage (kWh/mo) |
|---|---|---|---|
| September 2025 | 13.04 | 95.49 | 732 |
| October 2025 | 9.81 | 73.38 | 748 |
| November 2025 | 11.00 | 92.88 | 845 |
| December 2025 | 12.02 | 135.17 | 1124 |
| January 2026 | 10.39 | 142.88 | 1376 |
| February 2026 | 12.38 | 135.21 | 1092 |
| March 2026 | 10.90 | 111.92 | 1027 |
| April 2026 | 11.01 | 93.17 | 846 |
| May 2026 | 12.06 | 87.67 | 727 |
| June 2026 | 12.71 | 88.83 | 699 |
| July 2026 | 14.31 | 135.10 | 944 |
| August 2026 | 14.06 | 122.93 | 875 |
Otter Tail Power Co vs Minnesota vs the U.S.
| Otter Tail Power Co | Minnesota | U.S. average | |
|---|---|---|---|
| Rate (August 2026) | 14.06¢/kWh | 17.20¢/kWh | 18.16¢/kWh |
| Average monthly bill | $122.93 | $145.27 | $209.23 |
| Average monthly usage | 875 kWh | 844 kWh | 1152 kWh |
| Rate change, 1 year | +16.7% | +1.8% | +3.4% |
Estimate a bill at Otter Tail Power Co rates
Worked example: 1,000 kWh at Otter Tail Power Co's average effective rate of 14.06¢/kWh is about $140.60. The utility's actual average usage is 875 kWh/month, which produces the $122.93 average bill. This is an all-in average (energy, delivery, fixed charges, riders); your tariff's marginal price will differ.
See the full Minnesota rate trend, look up another utility by ZIP code, or read why electric bills are rising.
Source: EIA Form 861-M (monthly utility-level sales to ultimate customers, residential), published with roughly a two-month lag. Rate = revenue ÷ sales; bill = revenue ÷ customers. Months failing basic sanity screens are excluded. See methodology.