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Official data · U.S. Energy Information Administration, Form EIA-861 · 2024 data · Synced

Black Hills Power, Inc. · South Dakota

Investor-owned utility · EIA utility no. 19545 · 60,951 residential customers reported

In 2024, Black Hills Power, Inc.'s South Dakota customers averaged 0.9 outages and 57 minutes without power, and paid about $110 a month for electricity (14.4¢/kWh). These are Black Hills Power, Inc.'s own filings to EIA, under the IEEE reliability standard, including major storm days.

Outages / yr (SAIFI)
0.9
Time out / yr (SAIDI)
57 min
Avg residential bill / mo
$110
Price / kWh
14.4 ¢

Outage history

Minutes without power per customer · storm days shown separately
Black Hills Power, Inc. annual outage history in South Dakota: minutes without power per customer with and without major storm days, and outages per year, by year, from EIA.
Year With storm days Without storm days Outages / yr Relative duration
2024 57 57 0.9
2023 50 43 0.8
2022 86 65 0.9
2021 113 53 1.5
2020 130 58 1.1
2019 159 72 1.7
2018 78 64 0.9
2017 78 70 1.1
2016 88 78 1.0
2015 99 80 1.1
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.
Counties served
Butte, Custer, Fall River, Lawrence, Meade, Pennington.

We show EIA values as published, reformatting only for a consistent house style. How we display these figures.