massoutage

County annual report · FIPS 17049

2023 Effingham County, IL Power Outage Report

In 2023, customers in Effingham County, IL went without power for an average of 2.8 hours, a total of 41K customer-hours (Illinois average 4.0 hours). That ranks 70th worst of 102 Illinois counties and 2032nd of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
2.8
14,830 customers
Customer-hours out
41K
Peak customers out
3,762
Outages ≥1,000 out
3
0 of 10,000+ · 474 total
Longest outage
1d 2h
began July 5, 2023
Rank in state
70th/102
2032nd of 2,977 US

Compared with IL, the US and 2022

Effingham County, IL average hours without power per customer compared with state and national averages, 2023Effingham County 2.8 hours, Illinois average 4.0 hours, US average 7.1 hours, Effingham County, 2022 3.3 hoursEffingham CountyEffingham County2.8hIllinois averageIllinois average4.0hUS averageUS average7.1hEffingham County, 2022Effingham County, 20…3.3h
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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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Effingham County, IL customer-hours without power by month, 2023Jan 293, Feb 2,533, Mar 3,857, Apr 17K, May 1,517, Jun 4,994, Jul 1,758, Aug 6,854, Sep 447, Oct 773, Nov 294, Dec 44705k10k15k20k293Jan2,533Feb3,857Mar17KApr1,517May4,994Jun1,758Jul6,854Aug447Sep773Oct294Nov447Dec
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Customer-hours; April was the worst month.

Effingham County year over year

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Effingham County, IL: average hours without power per customer by year2015: 1.0h; 2016: 0.9h; 2017: 0.8h; 2018: 1.2h, coverage 92%; 2019: 1.4h, coverage 99%; 2020: 1.4h, coverage 94%; 2021: 2.0h, coverage 98%; 2022: 3.3h, coverage 98%; 2023: 2.8h; 2024: 2.4h; 2025: 2.6h012340%50%100%1.0h20150.9h20160.8h20171.2h20181.4h20191.4h20202.0h20213.3h20222.8h20232.4h20242.6h2025
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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 Effingham County, 2023

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 3, 2023 21:45April 3, 2023 23:301h 45m3,7625,283
2April 16, 2023 02:15April 16, 2023 07:455h 30m1,8605,834
3April 1, 2023 01:45April 2, 2023 00:0022h 15m1,1333,639
4June 27, 2023 11:00June 27, 2023 14:453h 45m9452,252
5March 4, 2023 13:15March 4, 2023 20:006h 45m816555
6August 27, 2023 07:00August 27, 2023 08:151h 15m814874
7February 22, 2023 21:00February 23, 2023 15:3018h 30m7631,643
8April 29, 2023 13:45April 29, 2023 16:152h 30m575845
9August 25, 2023 19:15August 26, 2023 08:0012h 45m5422,159
10August 7, 2023 00:45August 7, 2023 10:309h 45m5361,736

Outage episodes by size in 2023: 23 reached 100+ customers, 3 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 Effingham 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
Ameren Illinois Company20239.9 hrs1.331.9 hrs0.82
Southwestern Electric Coop Inc - (IL)20236.2 hrs2.744.3 hrs2.22
Ameren-----
Norris Electric Coop-----
Shelby Electric Coop, Inc-----
Clay Electric Coop Inc-----
City of Altamont - (IL)-----

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 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 14,830 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. Effingham County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Effingham County, IL 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/illinois/effingham-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON