Power Out Map
– 0% of Sevier out 0 customers out in Utah

Power outage history

Sevier County Utah

3.1hours

without power for the average customer in a typical year, 2018–2025

14th most of 23 in Utah 53% below the national median

Worst outage on record Mar 29, 2017 83% of customers out · 90% back in 1.2 hours
Hours without power, average customer per year 3.1h / yr State average 3.2 h · national median 6.6 h
Major outages a year 3.0 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 2hours Median across major outages, from the peak
Longest single outage 8hours Sep 28, 2020, over 1% of customers out
Outage hours on storm days 6% Share falling on days with a NOAA storm report here
Worst year 2024 5.6 hours without power, average customer
Electricity customers 8,108 ORNL customer model · 8 well-covered years

Every day since 2015

Eleven years, one night at a time

Each cell is a day. The brighter it is, the larger the share of Sevier's customers who were without power at that day's worst moment.

20152016201720182019202020212022202320242025
0%100% of customers out

Year by year

Hours in the dark, per customer

2024 was the worst well-recorded year, at 5.6 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Sevier, hours without power per customer

SevierUS median countyUtah average
0 2 4 6 8 1.5 ’17 2.1 ’18 1.9 ’19 3.1 ’20 5.1 ’21 1.3 ’22 0.9 ’23 5.6 ’24 4.5 ’25 US 6.6 UT 3.2

The record

The biggest outages since 2015

Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.

Began Storm Peak out Share Lasted 90% restored Customer-hours
Mar 29, 2017 No storm report 6,708 83% 1.5 h 1.2 h 9.8k
May 14, 2021 No storm report 1,784 22% 5.0 h 5.8 h 8.9k
Sep 2, 2018 No storm report 1,774 22% 6.5 h 7.8 h 7.9k
Aug 3, 2020 No storm report 2,023 25% 4.8 h 3.8 h 7.9k
Oct 12, 2021 No storm report 2,084 26% 7.5 h 3.5 h 6.9k
Apr 17, 2019 No storm report 3,225 40% 2.5 h 30 min 5.0k
Jul 16, 2025 No storm report 2,040 25% 2.5 h 4.0 h 4.4k
Mar 3, 2021 No storm report 746 9% 5.8 h 3.8 h 4.3k
Jan 15, 2024 Winter storm 1,708 21% 2.5 h 2.5 h 4.3k
Dec 6, 2021 No storm report 1,745 22% 4.8 h 1.2 h 3.9k
Jun 10, 2024 No storm report 1,109 14% 3.2 h 7.0 h 3.6k
Oct 28, 2020 No storm report 753 9% 4.2 h 4.0 h 3.2k

After the peak

How fast the lights come back

Each line is one major outage, from its peak. The amber line is the typical path.

0% 25% 50% 75% 100% peak+24h+48h+72h+96h half back by +4h 90% by +4h

When it happens

The outage clock

Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.

00061218 Jan inside

What was happening

Weather behind the outages

Each outage is matched to NOAA storm reports for Sevier from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • No storm on record 94%
  • Winter storm 3.3%
  • Thunderstorms 1.7%
  • Windstorm 0.6%

Who keeps the lights on

Utilities serving Sevier

As each utility reports to the Energy Information Administration for its whole Utah territory, not this county alone. Outage minutes include major storm days.

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
PacifiCorp Investor Owned 118 102 0.90 13.5 969k
Garkane Energy Coop, Inc Cooperative 899 575 – 11.6 12k
City of Monroe UT – – – – 8.7k

EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.

Next door

Neighbouring counties

Across Utah

Where it is darkest

Hours / yr64+

All Utah counties →

About these numbers

Notes

Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 8,108 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →