massoutage

2020 Wyoming Power Outage Report

In 2020, the average Wyoming customer went without power for about 3.4 hours, the 37th worst of 51 states (US average 8.0 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer
3.4
vs prior year
▲ 163%
vs 2019
Customer-hours out
1.1M
Peak customers out
19,371
across the state at once
EAGLE-I coverage
71%
of WY customers
Counties reporting
23

Wyoming year over year

Wyoming: average hours without power per customer by year2015: 0.4h; 2016: 0.6h; 2017: 0.9h; 2018: 1.2h, coverage 62%; 2019: 1.3h, coverage 68%; 2020: 3.4h, coverage 71%; 2021: 2.2h, coverage 71%; 2022: 2.4h, coverage 71%; 2023: 2.0h; 2024: 2.4h; 2025: 3.7h012340%50%100%0.4h20150.6h20160.9h20171.2h20181.3h20193.4h20202.2h20212.4h20222.0h20232.4h20243.7h2025
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, 2020

Customer-hours without power across Wyoming; September was the worst.

CSVJSON
Wyoming customer-hours without power by month, 2020Jan 14K, Feb 23K, Mar 135K, Apr 26K, May 31K, Jun 253K, Jul 43K, Aug 130K, Sep 315K, Oct 87K, Nov 33K, Dec 23K0100k200k300k400k14KJan23KFeb135KMar26KApr31KMay253KJun43KJul130KAug315KSep87KOct33KNov23KDec
Use the arrow keys to read values.

All 23 Wyoming counties, 2020

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

CSVJSON
#CountyHrs / customerCustomer-hoursCustomersPeak outEvents
1Crook County14.265K4,5452,560275
2Albany County10.9255K23,3039,746805
3Johnson County9.853K5,4482,053312
4Converse County8.061K7,6242,9591,312
5Sweetwater County6.8173K25,4756,789585
6Weston County4.919K3,9331,176270
7Carbon County4.245K10,7675,403851
8Big Horn County2.911K3,9302,279187
9Campbell County2.877K28,0602,923531
10Laramie County2.4125K52,98719,300613
11Natrona County2.1103K47,99212,288970
12Sublette County2.010K5,123690288
13Hot Springs County1.94,4402,310687123
14Lincoln County1.317K12,8201,080265
15Sheridan County1.322K17,6181,008245
16Uinta County1.214K12,3681,585236
17Park County1.014K14,005989277
18Fremont County0.925K26,8235,264457
19Teton County0.11,79818,592297124
20Goshen County0.12773,8968214
21Niobrara County-1,568-16299
22Platte County-12K-408121
23Washakie County-1,600-588150

Biggest Wyoming outages of 2020

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

CSVJSON
#CountyStarted (UTC)Ended (UTC)DurationPeak outCustomer-hours
1Laramie County, WYMarch 14, 2020 12:15March 19, 2020 05:154d 17h19,30086K
2Natrona County, WYJune 27, 2020 06:00June 27, 2020 11:005h12,28842K
3Albany County, WYDecember 18, 2020 18:30December 18, 2020 18:4515m9,7462,437
4Albany County, WYAugust 1, 2020 00:15August 1, 2020 07:157h9,72365K
5Albany County, WYJune 9, 2020 02:45June 12, 2020 04:303d 1h9,664101K
6Albany County, WYOctober 25, 2020 10:30October 25, 2020 18:458h 15m9,44419K
7Albany County, WYSeptember 13, 2020 16:30September 13, 2020 19:453h 15m7,61217K
8Albany County, WYNovember 14, 2020 05:30November 14, 2020 07:302h7,5917,601
9Sweetwater County, WYSeptember 8, 2020 02:30September 11, 2020 03:153d6,789135K
10Albany County, WYOctober 27, 2020 01:45October 27, 2020 07:005h 15m6,7349,265
11Carbon County, WYAugust 6, 2020 11:15August 6, 2020 13:001h 45m5,4038,089
12Fremont County, WYAugust 20, 2020 21:45August 20, 2020 23:001h 15m5,2641,322
13Fremont County, WYJune 11, 2020 13:15June 11, 2020 15:452h 30m3,5115,055
14Carbon County, WYOctober 8, 2020 15:15October 8, 2020 19:154h3,1553,204
15Converse County, WYSeptember 7, 2020 20:00September 12, 2020 04:154d 8h2,95928K
16Campbell County, WYJune 29, 2020 03:00June 29, 2020 07:004h2,9236,316
17Campbell County, WYJune 6, 2020 22:45June 9, 2020 21:152d 22h2,90911K
18Fremont County, WYSeptember 8, 2020 01:30September 10, 2020 15:302d 14h2,8808,770
19Natrona County, WYSeptember 8, 2020 02:15September 11, 2020 13:303d 11h2,72820K
20Campbell County, WYJune 27, 2020 21:45June 28, 2020 22:451d 1h2,6904,519
21Converse County, WYJune 6, 2020 22:15June 8, 2020 03:151d 5h2,5785,634
22Crook County, WYMarch 20, 2020 20:15March 20, 2020 22:152h2,5602,271
23Laramie County, WYFebruary 3, 2020 13:45February 3, 2020 19:005h 15m2,3611,774
24Campbell County, WYFebruary 3, 2020 02:15February 3, 2020 07:155h2,3474,239
25Big Horn County, WYAugust 1, 2020 19:45August 1, 2020 22:453h2,2795,477
EAGLE-I tracked about 71% of Wyoming's electricity customers in 2020; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.

Part of the 2020 US Power Outage Report.

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