massoutage

County annual report · FIPS 17003

2024 Alexander County, IL Power Outage Report

In 2024, customers in Alexander County, IL went without power for an average of 2.4 hours, a total of 6,859 customer-hours (Illinois average 3.0 hours). That ranks 72nd worst of 102 Illinois counties and 2291st of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
2.4
2,842 customers
Customer-hours out
6,859
Peak customers out
502
Outages ≥1,000 out
0
0 of 10,000+ · 53 total
Longest outage
1d 19h
began May 27, 2024
Rank in state
72nd/102
2291st of 2,990 US

Compared with IL, the US and 2023

Alexander County, IL average hours without power per customer compared with state and national averages, 2024Alexander County 2.4 hours, Illinois average 3.0 hours, US average 12.6 hours, Alexander County, 2023 2.1 hoursAlexander CountyAlexander County2.4hIllinois averageIllinois average3.0hUS averageUS average12.6hAlexander County, 2023Alexander County, 20…2.1h
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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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Alexander County, IL customer-hours without power by month, 2024Jan 6, Feb 51, Mar 35, Apr 371, May 5,932, Jun 159, Jul 60, Aug 173, Sep 42, Oct 16, Nov 6, Dec 902k4k6k6Jan51Feb35Mar371Apr5,932May159Jun60Jul173Aug42Sep16Oct6Nov9Dec
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Customer-hours; May was the worst month.

Alexander County year over year

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Alexander County, IL: average hours without power per customer by year2015: 4.9h; 2016: 2.5h; 2017: 4.4h; 2018: 3.8h, coverage 92%; 2019: 4.9h, coverage 99%; 2020: 1.8h, coverage 94%; 2021: 2.7h, coverage 98%; 2022: 2.3h, coverage 98%; 2023: 2.1h; 2024: 2.4h; 2025: 7.5h024680%50%100%4.9h20152.5h20164.4h20173.8h20184.9h20191.8h20202.7h20212.3h20222.1h20232.4h20247.5h2025
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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 Alexander County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 16, 2024 01:45August 16, 2024 11:159h 30m502172
2May 27, 2024 01:30May 28, 2024 21:151d 19h4234,702
3May 26, 2024 15:00May 26, 2024 21:456h 45m1941,222
4June 10, 2024 02:15June 10, 2024 04:152h145146
5April 17, 2024 15:45April 18, 2024 00:459h137323
6February 15, 2024 17:15February 15, 2024 18:301h 15m1114
7June 30, 2024 23:30July 1, 2024 03:003h 30m1022
8April 2, 2024 10:00April 2, 2024 12:002h814
9March 25, 2024 19:45March 25, 2024 21:151h 30m68
10March 25, 2024 22:00March 26, 2024 01:153h 15m611

Outage episodes by size in 2024: 5 reached 100+ customers, 0 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 Alexander 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
Southern Illinois Elec Coop-----
Cairo Public Utility Company-----

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 ÷ 2,842 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. Alexander County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Alexander 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/alexander-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON