massoutage

2020 Wisconsin Power Outage Report

In 2020, the average Wisconsin customer went without power for about 1.8 hours — the 44th worst of any US state that year, below the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
1.8
Peak customers out
28,485
Rank (worst state)
44th
Counties affected
20

Wisconsin outages over the decade

Average hours without power per customer, 2020 highlighted.

1.5h20151.9h20162.9h20171.7h20184.4h20191.8h20204.7h20214.6h20223.4h20234.6h20243.9h2025

Hardest-hit Wisconsin counties in 2020

By peak customers out during the year's worst event.

1Calumet County28,4852Manitowoc County27,1353Racine County18,5874Vilas County14,3795Brown County12,7386Milwaukee County12,3767Forest County12,1688Marathon County11,3699Waukesha County11,00410La Crosse County9,90411Columbia County8,27112Kenosha County8,11013Winnebago County7,68214Walworth County7,53015Sheboygan County7,10116St. Croix County6,59017Shawano County6,27118Oconto County6,02819Jefferson County5,92620Burnett County5,604

Biggest Wisconsin outages of 2020

CountyBeganPeak customers out
Calumet CountyMay 8, 202028,485
Manitowoc CountyMay 8, 202027,135
Racine CountyJune 19, 202018,587
Racine CountyAugust 10, 202014,758
Vilas CountyJune 10, 202014,379
Brown CountyMarch 10, 202012,738
Milwaukee CountyNovember 10, 202012,376
Forest CountyMay 16, 202012,168
Marathon CountyJune 19, 202011,369
Waukesha CountyAugust 9, 202011,004
Wisconsin by year:20252024202320222021201920182017
Other states in 2020:LAMEOKIAALNC

Part of the 2020 US Power Outage Report. Source: DOE/ORNL EAGLE-I. “Avg hours per customer” is a SAIDI-like measure (outage customer-minutes ÷ tracked customers); coverage varies by year.