massoutage

County annual report · FIPS 17187

2019 Warren County, IL Power Outage Report

In 2019, customers in Warren County, IL went without power for an average of 8.7 hours, a total of 72K customer-hours (Illinois average 1.8 hours). That ranks 5th worst of 102 Illinois counties and 634th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
8.7
8,244 customers
Customer-hours out
72K
Peak customers out
2,374
Outages ≥1,000 out
11
0 of 10,000+ · 494 total
Longest outage
1d 10h
began June 30, 2019
Rank in state
5th/102
634th of 2,945 US

Compared with IL, the US and 2018

Warren County, IL average hours without power per customer compared with state and national averages, 2019Warren County 8.7 hours, Illinois average 1.8 hours, US average 4.7 hours, Warren County, 2018 2.3 hoursWarren CountyWarren County8.7hIllinois averageIllinois average1.8hUS averageUS average4.7hWarren County, 2018Warren County, 20182.3h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

CSVJSON
Warren County, IL customer-hours without power by month, 2019Jan 278, Feb 10K, Mar 1,266, Apr 8,117, May 9,822, Jun 3,455, Jul 18K, Aug 18K, Sep 669, Oct 791, Nov 1,492, Dec 25905k10k15k20k278Jan10KFeb1,266Mar8,117Apr9,822May3,455Jun18KJul18KAug669Sep791Oct1,492Nov259Dec
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Customer-hours; August was the worst month.

Warren County year over year

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Warren County, IL: average hours without power per customer by year2015: 15.7h; 2016: 6.5h; 2017: 0.9h; 2018: 2.3h, coverage 92%; 2019: 8.7h, coverage 99%; 2020: 3.2h, coverage 94%; 2021: 5.0h, coverage 98%; 2022: 1.6h, coverage 98%; 2023: 12.7h; 2024: 6.1h; 2025: 3.5h051015200%50%100%15.7h20156.5h20160.9h20172.3h20188.7h20193.2h20205.0h20211.6h202212.7h20236.1h20243.5h2025
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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 Illinois customers tracked each year.

Biggest outages in Warren County, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 5, 2019 23:00July 6, 2019 03:004h2,3741,860
2February 2, 2019 11:15February 2, 2019 12:451h 30m2,3241,234
3August 17, 2019 11:45August 17, 2019 22:4511h2,2864,050
4August 26, 2019 07:45August 26, 2019 18:0010h 15m2,2784,252
5August 10, 2019 13:00August 10, 2019 19:006h1,7685,749
6June 30, 2019 18:15July 2, 2019 04:301d 10h1,48611K
7July 3, 2019 11:00July 3, 2019 20:159h 15m1,3921,882
8April 30, 2019 23:30May 1, 2019 06:307h1,0822,664
9May 23, 2019 02:45May 23, 2019 19:0016h 15m1,0412,481
10February 12, 2019 14:45February 13, 2019 20:451d 6h1,0144,987

Outage episodes by size in 2019: 43 reached 100+ customers, 11 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 Warren 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
Ameren-----
McDonough Power 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 ÷ 8,244 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. Warren County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Warren 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/warren-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON