Black Hills Power, Inc.: average electricity price and bill
- Annual file
- Form EIA-861, 2024 final
- Monthly data
- to July 2026
The average residential price of Black Hills Power, Inc. was 14.33 cents per kilowatt-hour (kWh) in July 2026. Monthly sample, Form EIA-861M
In July 2025, the price was 15.49 cents per kWh. In July 2026, the South Dakota average was 15.37 cents per kWh. EIA marks this month as preliminary.
For 2024, the newest final year, the price was 14.33 cents per kWh.
The average monthly bill of a residential customer was $110.12 in 2024, for 768 kWh each month. The South Dakota average price was 12.86 cents per kWh in 2024. The US average price was 16.48 cents per kWh in 2024.
Average price of electricity to ultimate consumers represents the cost per unit of electricity sold and is calculated by dividing electric revenue from ultimate consumers by the corresponding sales of electricity.
The average price of electricity to ultimate consumers reported in this publication by sector represents a weighted average of consumer revenue and sales, and does not equal the per kWh rate charged by the electric power industry participant to the individual consumers.
EIA's words. Source: U.S. Energy Information Administration, Electric Power Monthly, Technical notes, section "Form EIA-861" (March 2024). "This publication" is the Electric Power Monthly.
In plain words: the average price is revenue divided by sales. It is not the rate on a rate schedule. The annual figures on this page are for 2024. Monthly data through .
Since the last EIA release: no tracked figure of Black Hills Power, Inc. changed. The record of changes starts with the next release. EIA releases and changes
Price and bill beside South Dakota, the ownership type and the US
Form EIA-861, 2024
| Figure | This utility | Investor-owned utilities, US median | South Dakota | United States |
|---|---|---|---|---|
| Average residential price (cents per kWh) | 14.33 | 16.17 | 12.86 | 16.48 |
| Average monthly bill (dollars per month) | $110.12 | $131.47 | $127.81 | $142.26 |
| Average monthly use (kWh per month) | 768 | 787 | 994 | 863 |
| Change of the price in 1 year (percent) | +5.1% | n/a | +4.4% | +3.0% |
| Change of the price in 5 years (percent) | +9.1% | n/a | +11.3% | +26.7% |
State and US figures are EIA's own averages for all customers. The ownership column is a median of utilities with 1,000 or more residential customers, from the final 2024 file.
The average monthly bill is residential revenue divided by customers and by 12 months. The use is residential sales divided by customers and by 12 months. These figures are for bundled service only.
14.33 cents per kWh, Black Hills Power, Inc., 2024
Figures for each state, 2024
| State | Residential customers | Average price cents per kWh | State average cents per kWh | Average bill dollars per month | SAIDI minutes, with major event days |
|---|---|---|---|---|---|
| South Dakota | 60,951 | 14.37 | 12.86 | $110.22 | 57.4 |
| Wyoming | 2,018 | 13.13 | 12.47 | $107.54 | 2.2 |
| Montana | 12 | n/a | 12.66 | n/a | 59.4 |
Sales by sector
Form EIA-861, 2024
| Sector | Customers | Sales | Share of sales percent | Revenue dollars | Average price, bundled cents per kWh |
|---|---|---|---|---|---|
| Residential | 62,981 | 580.8 GWh | 31 | 83,227,700 | 14.33 |
| Commercial | 14,518 | 822.2 GWh | 44 | 108,044,500 | 13.14 |
| Industrial | 23 | 467 GWh | 25 | 38,812,800 | 8.31 |
Customers, sales and revenue include each service type that the utility reported. The price column uses bundled service only. Sources of energy: 2.6 TWh in total. The utility generated 72.8% and bought 802.7 GWh. Summer peak demand: 388 MW.
Price history
Form EIA-861, 2013 to 2024
Black Hills Power, Inc.South Dakota averageUS average
Table of the figures by year, 2013 to 2024
| Year | Average price cents per kWh | South Dakota average cents per kWh | Average bill dollars per month | Average use kWh per month | Residential customers | Sales, all sectors |
|---|---|---|---|---|---|---|
| 2024 | 14.33 | 12.86 | $110.12 | 768 | 62,981 | 1.9 TWh |
| 2023 | 13.63 | 12.32 | $104.01 | 763 | 61,784 | 1.8 TWh |
| 2022 | 13.87 | 12.09 | $112.76 | 813 | 60,929 | 1.9 TWh |
| 2021 | 15.10 | 12.22 | $120.14 | 796 | 60,118 | 1.8 TWh |
| 2020 | 13.35 | 11.75 | $103.94 | 779 | 59,668 | 1.8 TWh |
| 2019 | 13.13 | 11.55 | $102.66 | 782 | 59,218 | 1.8 TWh |
| 2018 | 13.77 | 11.59 | $106.62 | 774 | 58,869 | 1.7 TWh |
| 2017 | 13.81 | 11.77 | $103.70 | 751 | 58,474 | 1.8 TWh |
| 2016 | 13.84 | 11.47 | $104.09 | 752 | 57,712 | 1.8 TWh |
| 2015 | 13.92 | 11.08 | $106.40 | 764 | 56,906 | 1.8 TWh |
| 2014 | 11.85 | 10.47 | $94.63 | 799 | 56,563 | 1.8 TWh |
| 2013 | 11.21 | 10.26 | $90.89 | 811 | 56,782 | 1.7 TWh |
Price by month
Black Hills Power, Inc. (SD)South Dakota average
Reliability: SAIDI and SAIFI
Form EIA-861, 2024
- SAIDI with major event days: 55.5 minutes without power for each customer in 2024, 56 minutes.
- SAIDI without major event days: 55.5 minutes for each customer in 2024, 56 minutes.
- SAIFI with major event days: 0.84 interruptions for each customer in 2024.
| Figure | This utility | South Dakota, median of 14 utilities | South Dakota, EIA total | US, median of 893 utilities |
|---|---|---|---|---|
| SAIDI with major event days (minutes per customer per year) | 55.5 | 73.7 | 84.7 | 184.5 |
| SAIDI without major event days (minutes per customer per year) | 55.5 | 65.1 | 62.1 | 99.8 |
| SAIFI with major event days (interruptions per customer per year) | 0.84 | 0.87 | 0.82 | 1.40 |
| SAIFI without major event days (interruptions per customer per year) | 0.84 | 0.70 | 0.72 | 1.01 |
The utility reported these figures to EIA with the IEEE 1366 standard. Methods differ between utilities. What SAIDI and SAIFI mean
For utilities using the IEEE method, a Major Event Day is any day that exceeds a daily SAIDI threshold called Tmed. Tmed is a duration statistic calculated from daily SAIDI values from the past five years. For utilities not using IEEE methods, Major Events are self-determined by the reporting utility.
EIA's words. Source: U.S. Energy Information Administration, Electric Power Annual with data for 2024, Table 11.1, notes (October 2025).
Table of SAIDI and SAIFI by year, 2013 to 2024
| Year | SAIDI minutes, with major event days | SAIDI minutes, without major event days | SAIFI interruptions per customer, with major event days | SAIFI interruptions per customer, without major event days | Method |
|---|---|---|---|---|---|
| 2024 | 55.5 | 55.5 | 0.84 | 0.84 | IEEE 1366 |
| 2023 | 48.8 | 41.9 | 0.78 | 0.70 | IEEE 1366 |
| 2022 | 83.5 | 63.2 | 0.85 | 0.77 | IEEE 1366 |
| 2021 | 110.5 | 51.4 | 1.48 | 0.60 | IEEE 1366 |
| 2020 | 126.7 | 56.3 | 1.10 | 0.70 | IEEE 1366 |
| 2019 | 153.7 | 70.3 | 1.61 | 1.29 | IEEE 1366 |
| 2018 | 75.8 | 62.8 | 0.91 | 0.80 | IEEE 1366 |
| 2017 | 77.1 | 67.9 | 1.06 | 1.03 | IEEE 1366 |
| 2016 | 84.9 | 75.7 | 1.00 | 0.92 | IEEE 1366 |
| 2015 | 96.1 | 77.4 | 1.08 | 0.91 | IEEE 1366 |
| 2014 | 90.7 | 81.0 | 1.05 | 0.97 | IEEE 1366 |
| 2013 | 2,642.3 | 63.0 | 2.35 | 0.89 | IEEE 1366 |
Generation at plants that the utility operates
Form EIA-923, 2025
- Coal 84.6% 1.8 TWh
- Natural gas 15.4% 320.1 GWh
Net generation: 2.1 TWh. This is not the mix that customers get. Utilities also buy and sell power.
Counties in the service territory
Form EIA-861, 2024
- Carter County MT
- Powder River County MT
- Butte County SD
- Custer County SD
- Fall River County SD
- Lawrence County SD
- Meade County SD
- Pennington County SD
- Campbell County WY
- Crook County WY
- Weston County WY
The utility listed these 11 counties on Form EIA-861. A utility can serve only a part of a county on its list.
Other utilities in South Dakota
Form EIA-861, 2024
| Utility | Type | Residential customers | Average price cents per kWh | Average bill dollars per month | SAIDI minutes, with major event days | SAIDI minutes, without major event days | |
|---|---|---|---|---|---|---|---|
| NorthWestern Energy | Investor-owned utility | 51,467 | 12.56 | $113.36 | 76.0 | 66.5 | Add |
| Sioux Valley SW Elec Coop | Electric cooperative | 25,583 | 12.87 | $172.31 | 64.4 | 64.4 | Add |
| Southeastern Electric Coop Inc | Electric cooperative | 20,160 | 12.41 | $139.98 | 71.3 | 71.3 | Add |
| West River Electric Assn Inc | Electric cooperative | 18,423 | 14.25 | $127.85 | 43.5 | 43.5 | Add |
| Watertown Municipal Utilities | Municipal utility | 11,633 | 9.30 | $79.62 | 3.3 | 3.3 | Add |
| City of Brookings | Municipal utility | 10,544 | 11.12 | $89.79 | 10.6 | 10.6 | Add |
| Black Hills Electric Coop, Inc | Electric cooperative | 9,227 | 14.76 | $163.70 | 228.7 | 102.0 | Add |
| Central Electric Coop, Inc | Electric cooperative | 6,483 | 13.64 | $201.08 | n/a | n/a | Add |
All utilities in South Dakota, Investor-owned utilities in the US
Watch or compare this utility
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Official channels
- South Dakota Public Utilities CommissionThe home page of the state utility commission of South Dakota.
- Wyoming Public Service CommissionThe home page of the state utility commission of Wyoming.
- Montana Public Service CommissionThe home page of the state utility commission of Montana.
- LIHEAP Clearinghouse: energy assistance office searchThe search page for local offices of the federal Low Income Home Energy Assistance Program (LIHEAP).
- EIA: Form EIA-861 annual data filesThe page of the annual files: revenue, sales, customers, reliability and service territories of each utility.
- EIA: Form EIA-861M monthly data filesThe page of the monthly files: the figures of each state and of the monthly sample of utilities.
EIA's files have no website for a utility. The state utility commission and the utility have the rate schedules.
Cite this page
Power Bill Facts. Black Hills Power, Inc.: average electricity price and bill. https://powerbillfacts.com/utility/black-hills-power-inc-sd-19545/ Source: U.S. Energy Information Administration, Form EIA-861 (2024) and Form EIA-861M. Data through . Page made .
Where the figures come from
Source: U.S. Energy Information Administration. Annual figures: Form EIA-861, final release for 2024, respondent "Black Hills Power, Inc.", utility number 19545. Monthly figures of the utility: Form EIA-861M sample. State and US averages: Form EIA-861M sales and revenue workbook, through July 2026. Generation by fuel: Form EIA-923, 2025 final. These are US government works in the public domain. An error in the processing of this site is corrected at the next build: report an error.
Questions about Black Hills Power, Inc.
- How does the price of Black Hills Power, Inc. compare with other utilities?
- In 2024, 64% of the 1,230 US utilities with a price had this price or a lower price. In South Dakota, 16 of the 19 other utilities with a price had a lower price.
- Did the price of Black Hills Power, Inc. change?
- The average residential price was 13.63 cents per kWh in 2023 and 14.33 cents per kWh in 2024. The 2024 price was 0.70 cents per kWh higher than the 2023 price. In 2019, the price was 13.13 cents per kWh. These prices are not adjusted for inflation.
- How many minutes without power did Black Hills Power, Inc. report?
- Black Hills Power, Inc. reported 55.5 minutes without power for each customer in 2024, with major event days. Without major event days, the figure was 55.5 minutes. EIA's name for this figure is SAIDI. The utility also reported 0.84 interruptions for each customer, with major event days (SAIFI).
- Which counties does Black Hills Power, Inc. serve?
- Black Hills Power, Inc. listed 11 counties in 3 states in its service territory on Form EIA-861 for 2024. This page has the full list. A utility can serve only a part of a county.