South Dakota · Investor Owned
Black Hills Power, Inc.
15.12¢ per kWh, bundled, EIA-861 2025. Average bill $105.88 at 700.2 kWh a month, across 67,608 customers on that row.
South Dakota averaged 13.32¢/kWh and $131.10 a month. The United States averaged 17.23¢/kWh and $150.68. State and national figures come from EIA's Average Bill file.
Revenue divided by sales, EIA-861 Sales to Ultimate Customers, 2025, released October 7, 2026. Texas wires utilities come from the Delivery Companies file. The price and bill use bundled service. Customer count: 67,608, the largest residential count across service types.
Estimate a bill
The figure below is this utility's 2025 EIA residential average.
2025 EIA average
$151.20
15.12¢/kWh × 1,000 kWh. Bundled residential average, EIA-861 2025. The customer charge is already folded into this average, so it stands beside a tariff total rather than being added to it.
Annual history
| Year | ¢/kWh | Avg. bill | Avg. kWh | Customers |
|---|---|---|---|---|
| 2015 | 13.99¢ | $106.31 | 759.9 | 54,809 |
| 2016 | 13.89¢ | $104.20 | 750.2 | 55,637 |
| 2017 | 13.86¢ | $103.84 | 749.4 | 56,430 |
| 2018 | 13.81¢ | $106.75 | 772.7 | 56,835 |
| 2019 | 13.15¢ | $102.62 | 780.4 | 57,178 |
| 2020 | 13.37¢ | $103.97 | 777.4 | 57,626 |
| 2021 | 15.15¢ | $120.43 | 794.9 | 58,083 |
| 2022 | 13.92¢ | $112.95 | 811.7 | 58,892 |
| 2023 | 13.67¢ | $104.09 | 761.6 | 59,756 |
| 2024 | 14.37¢ | $110.22 | 766.8 | 60,951 |
| 2025 | 15.12¢ | $105.88 | 700.2 | 67,608 |
EIA-861, 2015–2025, using the same service type as the 2025 figure. A blank year means that service was not in the file.
Counties
Butte, Custer, Fall River, Lawrence, Meade, Pennington.
EIA-861 Service Territory, 2025. A listed county is the county EIA recorded. It does not mean every address in the county is served. Open this utility in the bill calculator · Rate history tool