massoutage

County annual report · FIPS 55009

2023 Brown County, WI Power Outage Report

In 2023, customers in Brown County, WI went without power for an average of 0.7 hours, a total of 138K customer-hours (Wisconsin average 3.4 hours). That ranks 65th worst of 72 Wisconsin counties and 2774th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
0.7
201,743 customers
Customer-hours out
138K
Peak customers out
2,885
Outages ≥1,000 out
12
0 of 10,000+ · 804 total
Longest outage
5d 21h
began August 9, 2023
Rank in state
65th/72
2774th of 2,977 US

Compared with WI, the US and 2022

Brown County, WI average hours without power per customer compared with state and national averages, 2023Brown County 0.7 hours, Wisconsin average 3.4 hours, US average 7.1 hours, Brown County, 2022 5.4 hoursBrown CountyBrown County0.7hWisconsin averageWisconsin average3.4hUS averageUS average7.1hBrown County, 2022Brown County, 20225.4h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Brown County, WI customer-hours without power by month, 2023Jan 14K, Feb 21K, Mar 2,111, Apr 5,184, May 8,738, Jun 12K, Jul 25K, Aug 10K, Sep 6,784, Oct 19K, Nov 5,002, Dec 9,317010k20k30k14KJan21KFeb2,111Mar5,184Apr8,738May12KJun25KJul10KAug6,784Sep19KOct5,002Nov9,317Dec
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Customer-hours; July was the worst month.

Brown County year over year

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Brown County, WI: average hours without power per customer by year2015: 1.1h; 2016: 1.0h; 2017: 1.3h; 2018: 0.5h, coverage 83%; 2019: 2.4h, coverage 84%; 2020: 0.9h, coverage 84%; 2021: 1.5h, coverage 85%; 2022: 5.4h, coverage 85%; 2023: 0.7h; 2024: 3.7h; 2025: 1.5h02460%50%100%1.1h20151.0h20161.3h20170.5h20182.4h20190.9h20201.5h20215.4h20220.7h20233.7h20241.5h2025
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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 Brown County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1November 13, 2023 19:30November 13, 2023 23:003h 30m2,8852,946
2July 11, 2023 04:00July 11, 2023 14:4510h 45m2,7546,135
3January 24, 2023 15:30January 24, 2023 18:303h2,7437,977
4February 13, 2023 10:30February 14, 2023 00:0013h 30m2,14418K
5October 24, 2023 10:30October 24, 2023 19:008h 30m2,0904,436
6April 8, 2023 18:45April 8, 2023 20:151h 30m1,848466
7June 25, 2023 11:45June 25, 2023 21:009h 15m1,8032,992
8February 15, 2023 19:15February 16, 2023 06:4511h 30m1,6321,237
9May 31, 2023 19:15June 1, 2023 06:0010h 45m1,5952,986
10October 31, 2023 18:00October 31, 2023 19:301h 30m1,5801,042

Outage episodes by size in 2023: 89 reached 100+ customers, 12 reached 1,000+ customers, 0 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 Brown County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Wisconsin Electric Power Co20234.5 hrs1.0485 min0.68
Wisconsin Public Service Corp20232.5 hrs0.8574 min0.67

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 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 201,743 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. Brown County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Brown County, WI annual power outage report, 2023, 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/2023/wisconsin/brown-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON