massoutage

County annual report · FIPS 17187

2024 Warren County, IL Power Outage Report

In 2024, customers in Warren County, IL went without power for an average of 6.1 hours, a total of 51K customer-hours (Illinois average 3.0 hours). That ranks 21st worst of 102 Illinois counties and 1396th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
6.1
8,244 customers
Customer-hours out
51K
Peak customers out
1,507
Outages ≥1,000 out
5
0 of 10,000+ · 272 total
Longest outage
3d 8h
began August 16, 2024
Rank in state
21st/102
1396th of 2,990 US

Compared with IL, the US and 2023

Warren County, IL average hours without power per customer compared with state and national averages, 2024Warren County 6.1 hours, Illinois average 3.0 hours, US average 12.6 hours, Warren County, 2023 12.7 hoursWarren CountyWarren County6.1hIllinois averageIllinois average3.0hUS averageUS average12.6hWarren County, 2023Warren County, 202312.7h
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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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Warren County, IL customer-hours without power by month, 2024Jan 2,580, Feb 2,717, Mar 1,384, Apr 11K, May 2,987, Jun 582, Jul 15K, Aug 3,080, Sep 4,950, Oct 2,197, Nov 355, Dec 3,43205k10k15k2,580Jan2,717Feb1,384Mar11KApr2,987May582Jun15KJul3,080Aug4,950Sep2,197Oct355Nov3,432Dec
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Customer-hours; July 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, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 16, 2024 00:45July 18, 2024 01:002d1,50713K
2September 23, 2024 18:30September 23, 2024 20:302h1,4962,642
3May 24, 2024 14:30May 24, 2024 18:304h1,4031,944
4April 9, 2024 09:45April 10, 2024 01:3015h 45m1,36111K
5September 27, 2024 14:00September 27, 2024 18:304h 30m1,0512,189
6August 16, 2024 03:45August 19, 2024 11:453d 8h6791,418
7October 29, 2024 15:15October 29, 2024 19:304h 15m641351
8February 14, 2024 10:15February 14, 2024 10:3015m639160
9March 5, 2024 01:30March 5, 2024 08:006h 30m512922
10July 26, 2024 05:15July 26, 2024 07:302h 15m486884

Outage episodes by size in 2024: 20 reached 100+ customers, 5 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 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Ameren Illinois Company20243.7 hrs1.132.0 hrs0.91
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 n/a of Illinois's customers in 2024; 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, 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/illinois/warren-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON