massoutage

County annual report · FIPS 17009

2019 Brown County, IL Power Outage Report

In 2019, customers in Brown County, IL went without power for an average of 3.8 hours, a total of 11K customer-hours (Illinois average 1.8 hours). That ranks 33rd worst of 102 Illinois counties and 1388th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
3.8
3,007 customers
Customer-hours out
11K
Peak customers out
1,876
Outages ≥1,000 out
2
0 of 10,000+ · 98 total
Longest outage
15h 15m
began June 26, 2019
Rank in state
33rd/102
1388th of 2,945 US

Compared with IL, the US and 2018

Brown County, IL average hours without power per customer compared with state and national averages, 2019Brown County 3.8 hours, Illinois average 1.8 hours, US average 4.7 hours, Brown County, 2018 0.3 hoursBrown CountyBrown County3.8hIllinois averageIllinois average1.8hUS averageUS average4.7hBrown County, 2018Brown County, 20180.3h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

CSVJSON
Brown County, IL customer-hours without power by month, 2019Jan 7, Feb 159, Mar 2,499, Apr 143, May 3,202, Jun 238, Jul 104, Aug 43, Sep 2,167, Oct 165, Nov 53, Dec 2,66801k2k3k4k7Jan159Feb2,499Mar143Apr3,202May238Jun104Jul43Aug2,167Sep165Oct53Nov2,668Dec
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Customer-hours; May was the worst month.

Brown County year over year

CSVJSON
Brown County, IL: average hours without power per customer by year2015: 1.6h; 2016: 2.6h; 2017: 0.3h; 2018: 0.3h, coverage 92%; 2019: 3.8h, coverage 99%; 2020: 3.5h, coverage 94%; 2021: 2.3h, coverage 98%; 2022: 3.4h, coverage 98%; 2023: 17.5h; 2024: 3.3h; 2025: 1.3h051015200%50%100%1.6h20152.6h20160.3h20170.3h20183.8h20193.5h20202.3h20213.4h202217.5h20233.3h20241.3h2025
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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 Illinois customers tracked each year.

Biggest outages in Brown County, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 1, 2019 19:15March 1, 2019 22:453h 30m1,8762,491
2May 2, 2019 08:30May 2, 2019 17:459h 15m1,8682,981
3September 19, 2019 03:45September 19, 2019 10:457h5542,067
4December 16, 2019 22:00December 17, 2019 05:457h 45m4052,388
5April 18, 2019 23:45April 19, 2019 01:151h 30m104131
6February 8, 2019 15:30February 8, 2019 17:151h 45m99129
7May 8, 2019 00:45May 8, 2019 04:153h 30m70175
8October 21, 2019 20:00October 21, 2019 22:152h 15m59108
9December 5, 2019 06:15December 5, 2019 11:305h 15m34179
10June 15, 2019 13:00June 15, 2019 16:003h2830

Outage episodes by size in 2019: 5 reached 100+ customers, 2 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 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Ameren Illinois Company20183.5 hrs1.061.8 hrs0.90
Adams Electric Coop20182.2 hrs1.122.2 hrs1.12
Ameren-----
Illinois Rural Electric Coop-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 99% of Illinois's customers in 2019; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 3,007 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, IL annual power outage report, 2019, 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/2019/illinois/brown-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON