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

Montana-Dakota Utilities Co · Montana

Investor-owned utility · EIA utility no. 12199 · 19,616 residential customers reported

In 2024, Montana-Dakota Utilities Co's Montana customers averaged 2.0 outages and 360 minutes without power, and paid about $98 a month for electricity (12.9¢/kWh). These are Montana-Dakota Utilities Co's own filings to EIA, under the IEEE reliability standard, including major storm days.

Outages / yr (SAIFI)
2.0
Time out / yr (SAIDI)
360 min
Avg residential bill / mo
$98
Price / kWh
12.9 ¢

Outage history

Minutes without power per customer · storm days shown separately
Montana-Dakota Utilities Co annual outage history in Montana: 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 360 177 2.0
2023 112 n/r 1.3
2022 121 n/r 1.2
2021 685 n/r 3.1
2020 137 n/r 1.7
2019 85 n/r 0.9
2018 263 n/r 2.6
2017 171 n/r 2.0
2016 103 n/r 1.3
2015 242 n/r 2.8
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
Montana-Dakota Utilities Co reports under the IEEE 1366 method. The standard used is shown so figures are not mixed silently.
Counties served
Custer, Daniels, Dawson, Fallon, McCone, Prairie, and 5 more.

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