massoutage

2018 Utah Power Outage Report

In 2018, the average Utah customer went without power for about 1.9 hours, the 41st worst of 51 states (US average 5.3 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer
1.9
vs prior year
▲ 96%
vs 2017
Customer-hours out
2.5M
Peak customers out
53,306
across the state at once
EAGLE-I coverage
80%
of UT customers
Counties reporting
26

Utah year over year

Utah: average hours without power per customer by year2015: no data; 2016: no data; 2017: 1.0h; 2018: 1.9h, coverage 80%; 2019: 2.5h, coverage 80%; 2020: 8.6h, coverage 79%; 2021: 2.6h, coverage 79%; 2022: 2.7h, coverage 80%; 2023: 2.5h; 2024: 3.0h; 2025: 3.1h02.557.5100%50%100%n/a2015n/a20161.0h20171.9h20182.5h20198.6h20202.6h20212.7h20222.5h20233.0h20243.1h2025
Use the arrow keys to read values.
Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Month by month, 2018

Customer-hours without power across Utah; August was the worst.

CSVJSON
Utah customer-hours without power by month, 2018Jan 114K, Feb 176K, Mar 215K, Apr 241K, May 178K, Jun 169K, Jul 267K, Aug 299K, Sep 216K, Oct 208K, Nov 237K, Dec 152K0100k200k300k114KJan176KFeb215KMar241KApr178KMay169KJun267KJul299KAug216KSep208KOct237KNov152KDec
Use the arrow keys to read values.

All 26 Utah counties, 2018

Ranked by average hours without power per customer. Each county links to its annual report.

CSVJSON
#CountyHrs / customerCustomer-hoursCustomersPeak outEvents
1Rich County14.714K980980136
2Beaver County9.213K1,434477178
3Piute County6.74,33264364344
4Carbon County5.923K3,8492,975172
5Grand County5.622K3,9983,019228
6Morgan County5.616K2,9011,448148
7Sanpete County5.326K4,9982,243170
8Summit County5.192K18,1062,669533
9Emery County3.915K3,8532,605171
10Juab County3.25,3451,6541,48597
11Millard County2.913K4,388753254
12Weber County2.9296K103,52835,083800
13Tooele County2.882K28,8853,6861,018
14Iron County2.874K26,6734,688387
15Garfield County2.611K4,0651,67039
16Box Elder County2.456K23,0643,220416
17Salt Lake County2.21.1M494,04715,378509
18Sevier County2.117K8,1081,992205
19San Juan County1.78,5405,13740984
20Washington County1.5119K78,8835,751308
21Davis County1.5189K129,09516,562823
22Uintah County1.012K11,3742,429267
23Utah County0.9224K239,28911,160584
24Cache County0.945K49,7443,833475
25Wasatch County0.510K19,6261,634104
26Duchesne County0.0486,214435

Biggest Utah outages of 2018

Up to 25 county outage episodes with the most customers out at once.

CSVJSON
#CountyStarted (UTC)Ended (UTC)DurationPeak outCustomer-hours
1Weber County, UTJune 12, 2018 06:00June 12, 2018 06:1515m35,0838,771
2Davis County, UTJune 12, 2018 06:00June 12, 2018 06:1515m16,5624,141
3Salt Lake County, UTApril 9, 2018 19:30April 10, 2018 09:4514h 15m15,3788,819
4Salt Lake County, UTAugust 19, 2018 05:15August 20, 2018 08:151d 3h15,24686K
5Davis County, UTDecember 17, 2018 18:30December 18, 2018 00:005h 30m12,38115K
6Utah County, UTJanuary 10, 2018 15:00January 11, 2018 11:3020h 30m11,16016K
7Weber County, UTNovember 2, 2018 01:30November 2, 2018 02:451h 15m10,61413K
8Salt Lake County, UTOctober 8, 2018 04:45October 15, 2018 01:156d 20h9,88235K
9Davis County, UTMarch 1, 2018 22:45March 2, 2018 00:452h9,1762,297
10Salt Lake County, UTApril 16, 2018 13:30April 18, 2018 09:301d 20h7,62132K
11Salt Lake County, UTApril 30, 2018 05:00May 1, 2018 06:151d 1h7,5213,886
12Salt Lake County, UTFebruary 18, 2018 12:15February 20, 2018 21:152d 9h7,21450K
13Weber County, UTJune 10, 2018 11:45June 10, 2018 18:457h6,3766,383
14Salt Lake County, UTSeptember 15, 2018 15:30September 17, 2018 05:151d 13h6,07120K
15Salt Lake County, UTMay 16, 2018 11:45May 18, 2018 11:001d 23h5,90815K
16Salt Lake County, UTMarch 1, 2018 12:15March 3, 2018 22:002d 9h5,82831K
17Weber County, UTMarch 22, 2018 15:30March 23, 2018 15:451d5,80021K
18Washington County, UTNovember 9, 2018 07:30November 9, 2018 13:155h 45m5,75131K
19Davis County, UTMay 15, 2018 21:30May 15, 2018 21:4515m5,7491,437
20Salt Lake County, UTSeptember 21, 2018 13:45September 22, 2018 08:4519h5,7357,820
21Washington County, UTDecember 18, 2018 07:15December 18, 2018 14:457h 30m5,73425K
22Davis County, UTNovember 7, 2018 18:00November 7, 2018 21:003h5,5801,399
23Weber County, UTApril 18, 2018 14:30April 18, 2018 23:309h5,5692,843
24Weber County, UTAugust 1, 2018 12:45August 2, 2018 08:4520h5,3799,410
25Salt Lake County, UTApril 6, 2018 14:00April 6, 2018 23:309h 30m5,3435,408
EAGLE-I tracked about 80% of Utah's electricity customers in 2018; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
Utah by year:2025202420232022202120202019201720162015
Other states in 2018:NCVAWVMARIVTMEMI

Part of the 2018 US Power Outage Report.

Data from DOE EAGLE-I, every source we read.