massoutage

County annual report · FIPS 55089

2024 Ozaukee County, WI Power Outage Report

In 2024, customers in Ozaukee County, WI went without power for an average of 8.5 hours, a total of 291K customer-hours (Wisconsin average 4.6 hours). That ranks 14th worst of 72 Wisconsin counties and 1067th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
8.5
34,422 customers
Customer-hours out
291K
Peak customers out
10,592
Outages ≥1,000 out
13
1 of 10,000+ · 404 total
Longest outage
3d 7h
began January 12, 2024
Rank in state
14th/72
1067th of 2,990 US

Compared with WI, the US and 2023

Ozaukee County, WI average hours without power per customer compared with state and national averages, 2024Ozaukee County 8.5 hours, Wisconsin average 4.6 hours, US average 12.6 hours, Ozaukee County, 2023 4.3 hoursOzaukee CountyOzaukee County8.5hWisconsin averageWisconsin average4.6hUS averageUS average12.6hOzaukee County, 2023Ozaukee County, 20234.3h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

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Ozaukee County, WI customer-hours without power by month, 2024Jan 187K, Feb 706, Mar 2,633, Apr 1,557, May 21K, Jun 16K, Jul 13K, Aug 26K, Sep 1,064, Oct 7,225, Nov 6,350, Dec 9,784050k100k150k200k187KJan706Feb2,633Mar1,557Apr21KMay16KJun13KJul26KAug1,064Sep7,225Oct6,350Nov9,784Dec
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Customer-hours; January was the worst month.

Ozaukee County year over year

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Ozaukee County, WI: average hours without power per customer by year2015: 1.6h; 2016: 1.8h; 2017: 1.7h; 2018: 3.7h, coverage 83%; 2019: 4.2h, coverage 84%; 2020: 2.8h, coverage 84%; 2021: 7.1h, coverage 85%; 2022: 10.0h, coverage 85%; 2023: 4.3h; 2024: 8.5h; 2025: 3.7h0510150%50%100%1.6h20151.8h20161.7h20173.7h20184.2h20192.8h20207.1h202110.0h20224.3h20238.5h20243.7h2025
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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 Ozaukee County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 12, 2024 14:45January 15, 2024 22:303d 7h10,592172K
2August 27, 2024 17:30August 28, 2024 17:1523h 45m4,80120K
3May 1, 2024 06:15May 1, 2024 11:155h4,47611K
4June 25, 2024 01:30June 25, 2024 05:454h 15m3,4978,197
5May 24, 2024 22:30May 25, 2024 14:3016h3,4915,719
6July 14, 2024 02:15July 14, 2024 19:4517h 30m3,30511K
7June 17, 2024 15:45June 17, 2024 19:153h 30m2,9571,486
8December 4, 2024 20:30December 5, 2024 19:3023h2,4557,935
9December 7, 2024 23:00December 8, 2024 01:002h2,0151,010
10January 20, 2024 19:00January 21, 2024 01:006h1,5447,464

Outage episodes by size in 2024: 46 reached 100+ customers, 13 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 Ozaukee County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Wisconsin Electric Power Co20244.9 hrs1.041.8 hrs0.74
Cedarburg Light & Water Comm-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Wisconsin's customers in 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 34,422 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. Ozaukee County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Ozaukee County, WI annual power outage report, 2024, 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/2024/wisconsin/ozaukee-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON