Official data · U.S. Energy Information Administration, Form EIA-861 · 2024 data · Synced
Black Hills Power, Inc. · Montana
Investor-owned utility · EIA utility no. 19545 · 12 residential customers reported
In 2024, Black Hills Power, Inc.'s Montana customers averaged 1.2 outages and 59 minutes without power, and paid about $60 a month for electricity (7.0¢/kWh). These are Black Hills Power, Inc.'s own filings to EIA, under the IEEE reliability standard, including major storm days.
- Outages / yr (SAIFI)
- 1.2
- Time out / yr (SAIDI)
- 59 min
- Avg residential bill / mo
- $60
- Price / kWh
- 7.0 ¢
Outage history
Minutes without power per customer · storm days shown separately
| Year | With storm days | Without storm days | Outages / yr | Relative duration |
|---|---|---|---|---|
| 2024 | 59 | 59 | 1.2 | |
| 2023 | 143 | 143 | 1.4 | |
| 2022 | 217 | 217 | 1.7 | |
| 2021 | 320 | 63 | 1.3 | |
| 2020 | 13 | 8 | 0.1 | |
| 2019 | 437 | 437 | 3.0 | |
| 2018 | 584 | 584 | 2.6 | |
| 2017 | 1,023 | 129 | 4.4 | |
| 2016 | 223 | 21 | 3.1 | |
| 2015 | 138 | 93 | 1.6 |
Storm-heavy years look worse with major storm days included; with them removed, the underlying year is comparable. We always show both so a single storm season is not mistaken for a trend. What is a Major Event Day?
About these numbers
Source
U.S. Energy Information Administration, Annual Electric Power Industry Report (Form EIA-861), 2024 data. The monthly bill and price per kWh are computed by CheckedHome from EIA residential revenue and sales. View the source. Synced from EIA on .
Self-reported
Utilities report these figures to EIA themselves; EIA does not audit every submission, and outages from recent months appear only in the next annual release. Major storm days
Outage figures can be shown with or without Major Event Days (severe storms). We show both on utility pages and never cherry-pick. A correction?
We republish the official record verbatim. If a figure looks wrong, see Corrections; we re-check it against EIA.
Reporting standard
Black Hills Power, Inc. reports under the IEEE 1366 method. The standard used is shown so figures are not mixed silently.
We show EIA values as published, reformatting only for a consistent house style. How we display these figures.