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

Rocky Mountain Power · Wyoming

Investor-owned utility · EIA utility no. 14354 · reported to EIA as PacifiCorp · 118,130 residential customers reported

In 2024, Rocky Mountain Power's Wyoming customers averaged 0.9 outages and 92 minutes without power, and paid about $99 a month for electricity (13.4¢/kWh). These are Rocky Mountain Power's own filings to EIA, under the IEEE reliability standard, including major storm days.

Outages / yr (SAIFI)
0.9
Time out / yr (SAIDI)
92 min
Avg residential bill / mo
$99
Price / kWh
13.4 ¢

Outage history

Minutes without power per customer · storm days shown separately
Rocky Mountain Power annual outage history in Wyoming: 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 92 92 0.9
2023 103 84 0.8
2022 167 113 1.2
2021 120 120 1.0
2020 307 112 1.7
2019 150 135 1.4
2018 120 120 1.3
2017 197 180 1.7
2016 201 148 1.6
2015 215 191 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
Rocky Mountain Power reports under the IEEE 1366 method. The standard used is shown so figures are not mixed silently.
Counties served
Albany, Big Horn, Carbon, Converse, Fremont, Hot Springs, and 9 more.

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