massoutage

County annual report · FIPS 55009

2018 Brown County, WI Power Outage Report

In 2018, customers in Brown County, WI went without power for an average of 0.5 hours, a total of 106K customer-hours (Wisconsin average 1.7 hours). That ranks 66th worst of 71 Wisconsin counties and 2490th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
0.5
201,743 customers
Customer-hours out
106K
Peak customers out
6,435
Outages ≥1,000 out
16
0 of 10,000+ · 556 total
Longest outage
18d
began March 17, 2018
Rank in state
66th/71
2490th of 2,798 US

Compared with WI, the US and 2017

Brown County, WI average hours without power per customer compared with state and national averages, 2018Brown County 0.5 hours, Wisconsin average 1.7 hours, US average 5.6 hours, Brown County, 2017 1.3 hoursBrown CountyBrown County0.5hWisconsin averageWisconsin average1.7hUS averageUS average5.6hBrown County, 2017Brown County, 20171.3h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

CSVJSON
Brown County, WI customer-hours without power by month, 2018Jan 4,683, Feb 2,593, Mar 4,873, Apr 5,088, May 11K, Jun 8,740, Jul 8,576, Aug 220, Sep 35K, Oct 12K, Nov 3,672, Dec 8,536010k20k30k40k4,683Jan2,593Feb4,873Mar5,088Apr11KMay8,740Jun8,576Jul220Aug35KSep12KOct3,672Nov8,536Dec
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Customer-hours; September 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, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 18, 2018 00:00September 18, 2018 15:1515h 15m6,43529K
2October 18, 2018 13:30October 18, 2018 16:303h6,1361,554
3February 2, 2018 22:15February 15, 2018 20:1512d 22h3,9502,081
4October 19, 2018 13:15October 19, 2018 19:306h 15m3,052799
5May 18, 2018 19:30May 19, 2018 02:307h3,0413,049
6December 8, 2018 23:15December 9, 2018 03:003h 45m2,6177,310
7January 11, 2018 22:00January 12, 2018 04:306h 30m2,528639
8January 1, 2018 10:15January 1, 2018 13:153h2,0821,863
9April 14, 2018 11:30April 15, 2018 15:451d 4h1,8162,687
10October 20, 2018 03:00October 20, 2018 04:451h 45m1,4872,602

Outage episodes by size in 2018: 71 reached 100+ customers, 16 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 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Wisconsin Electric Power Co20182.0 hrs0.7370 min0.59
Wisconsin Public Service Corp20182.0 hrs0.971.8 hrs0.94

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 83% of Wisconsin's customers in 2018; 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, 2018, 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/2018/wisconsin/brown-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON