15.12¢
per kWh, 2025
[ Black Hills Power / SD ]
Black Hills Power electricity rates in South Dakota
NO RATE CASE ON FILE · DATA 2025
change in average rate, 2024→2025
+5.2%
vs 2024
67,608
residential customers
+13.1%
since 2020
What your bill becomes
Bill today
No change on file
Difference / month · / year
Estimated at Black Hills Power's average effective residential rate (15.12¢/kWh, EIA, all charges included). Your tariff, fees and taxes differ.
Rate history 2015–2025
| Year | ¢/kWh | Change | Customers |
|---|---|---|---|
| 2015 | 13.99¢ | — | 54,809 |
| 2016 | 13.89¢ | −0.7% | 55,637 |
| 2017 | 13.86¢ | −0.2% | 56,430 |
| 2018 | 13.81¢ | −0.4% | 56,835 |
| 2019 | 13.15¢ | −4.8% | 57,178 |
| 2020 | 13.37¢ | +1.7% | 57,626 |
| 2021 | 15.15¢ | +13.3% | 58,083 |
| 2022 | 13.92¢ | −8.1% | 58,892 |
| 2023 | 13.67¢ | −1.8% | 59,756 |
| 2024 | 14.37¢ | +5.1% | 60,951 |
| 2025 | 15.12¢ | +5.2% | 67,608 |
How this compares
13.32¢
South Dakota average, 2025
+13.5%
Black Hills Power vs SD 2025 average
−12.3%
vs US 2025 average
#3
priciest in SD
Serves 6 counties in South Dakota: Butte, Custer, Fall River, Lawrence, Meade, Pennington. 28 ZIP codes.
What the numbers show
Since 2015, Black Hills Power's average residential rate has gone from 13.99¢ to 15.12¢ per kWh: +8.1% over 10 years, or about +0.8% a year. It rose in 4 of the 10 years we can compare, and the biggest one-year increase was +13.3% in 2021. The largest drop was −8.1% in 2022.
For a home using 984 kWh a month, the South Dakota average, Black Hills Power's 2025 rate works out to about $1,785 a year, $213 more than at South Dakota's average rate of 13.32¢. Of the 21 South Dakota utilities in our data with a 2025 price, it is the 3rd most expensive.
Black Hills Power served 54,809 homes in 2015 and 67,608 in 2025 (+23.4%), about 15% of South Dakota's residential electricity customers.
Who sets Black Hills Power's rates
Black Hills Power is investor-owned, so it can change its base rates only by filing a rate case with the South Dakota Public Utilities Commission. The commission holds hearings and takes public comment before it rules, and it usually approves less than the company asks for. Fuel and other pass-through charges can change between rate cases.
Commission contact: South Dakota Public Utilities Commission. How we calculate every figure on this page: methodology.
Questions
Is Black Hills Power raising rates in 2026?
No rate case for Black Hills Power is on file with the South Dakota Public Utilities Commission in our tracker. Its average residential rate moved +5.2% from 2024 to 2025. We check the commission docket monthly.
What does Black Hills Power charge per kWh?
Black Hills Power's average effective residential rate was 15.12¢ per kWh in 2025 (EIA-861, revenue divided by sales, all charges included). South Dakota's 2025 average was 13.32¢.
How much have Black Hills Power rates gone up in five years?
+13.1% between 2020 and 2025, against +19.8% for South Dakota as a whole over the latest five-year window.
How many customers does Black Hills Power have in South Dakota?
67,608 residential customers in 2025, across 6 counties including Butte, Custer, Fall River, according to the EIA-861 survey.
Where do these numbers come from?
Rates and customer counts are from the US Energy Information Administration's annual EIA-861 survey, which every US utility files. Nothing here is a utility bill; use it to understand the direction and size of changes.
Sources
- EIA-861 Sales to Ultimate Customers, 2015–2025 (released 2026-10-07)
- EIA-861M monthly state averages through Jul 2026
- NREL utility-by-ZIP lookup (2024)