massoutage

County annual report · FIPS 55059

2021 Kenosha County, WI Power Outage Report

In 2021, customers in Kenosha County, WI went without power for an average of 4.6 hours, a total of 484K customer-hours (Wisconsin average 4.7 hours). That ranks 22nd worst of 72 Wisconsin counties and 1416th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
4.6
105,140 customers
Customer-hours out
484K
Peak customers out
10,823
Outages ≥1,000 out
28
1 of 10,000+ · 645 total
Longest outage
3d 22h
began August 11, 2021
Rank in state
22nd/72
1416th of 2,974 US

Compared with WI, the US and 2020

Kenosha County, WI average hours without power per customer compared with state and national averages, 2021Kenosha County 4.6 hours, Wisconsin average 4.7 hours, US average 8.9 hours, Kenosha County, 2020 2.1 hoursKenosha CountyKenosha County4.6hWisconsin averageWisconsin average4.7hUS averageUS average8.9hKenosha County, 2020Kenosha County, 20202.1h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Kenosha County, WI customer-hours without power by month, 2021Jan 11K, Feb 7,156, Mar 15K, Apr 662, May 7,990, Jun 13K, Jul 78K, Aug 269K, Sep 4,538, Oct 21K, Nov 3,792, Dec 53K0100k200k300k11KJan7,156Feb15KMar662Apr7,990May13KJun78KJul269KAug4,538Sep21KOct3,792Nov53KDec
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Customer-hours; August was the worst month.

Kenosha County year over year

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Kenosha County, WI: average hours without power per customer by year2015: 1.4h; 2016: 1.0h; 2017: 1.5h; 2018: 1.6h, coverage 83%; 2019: 2.9h, coverage 84%; 2020: 2.1h, coverage 84%; 2021: 4.6h, coverage 85%; 2022: 2.5h, coverage 85%; 2023: 6.3h; 2024: 2.0h; 2025: 1.9h024680%50%100%1.4h20151.0h20161.5h20171.6h20182.9h20192.1h20204.6h20212.5h20226.3h20232.0h20241.9h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.

Biggest outages in Kenosha County, 2021

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 11, 2021 00:30August 14, 2021 22:303d 22h10,823244K
2July 29, 2021 07:15July 30, 2021 19:001d 11h9,25070K
3October 7, 2021 09:15October 7, 2021 17:158h6,3742,180
4August 9, 2021 13:30August 10, 2021 01:3012h5,42315K
5December 16, 2021 01:45December 18, 2021 21:152d 19h4,87127K
6December 11, 2021 03:00December 11, 2021 18:0015h4,62015K
7January 21, 2021 17:00January 21, 2021 21:154h 15m3,7407,507
8September 24, 2021 19:30September 24, 2021 21:302h3,3421,675
9January 6, 2021 15:45January 6, 2021 17:001h 15m3,129783
10August 24, 2021 17:45August 25, 2021 14:4521h2,5694,018

Outage episodes by size in 2021: 54 reached 100+ customers, 28 reached 1,000+ customers, 1 reached 10,000+ customers.

Utility reliability filed with the EIA

SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Kenosha County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Wisconsin Electric Power Co20217.0 hrs1.131.7 hrs0.73
Wisconsin Power & Light Co-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 85% of Wisconsin's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 105,140 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
  • An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
  • Years loaded: 2015–2025. Kenosha County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Kenosha County, WI annual power outage report, 2021, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2021/wisconsin/kenosha-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON