massoutage

County annual report · FIPS 17095

2022 Knox County, IL Power Outage Report

In 2022, customers in Knox County, IL went without power for an average of 4.2 hours, a total of 109K customer-hours (Illinois average 1.6 hours). That ranks 28th worst of 102 Illinois counties and 1598th of 2,976 nationally.

Summary data CSVJSON
Avg hrs / customer
4.2
25,998 customers
Customer-hours out
109K
Peak customers out
8,572
Outages ≥1,000 out
6
0 of 10,000+ · 724 total
Longest outage
8d 6h
began August 1, 2022
Rank in state
28th/102
1598th of 2,976 US

Compared with IL, the US and 2021

Knox County, IL average hours without power per customer compared with state and national averages, 2022Knox County 4.2 hours, Illinois average 1.6 hours, US average 8.3 hours, Knox County, 2021 7.2 hoursKnox CountyKnox County4.2hIllinois averageIllinois average1.6hUS averageUS average8.3hKnox County, 2021Knox County, 20217.2h
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Average hours without power per customer in 2022; last bar is this county in 2021.

Month by month

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Knox County, IL customer-hours without power by month, 2022Jan 4,366, Feb 2,368, Mar 37K, Apr 4,602, May 10K, Jun 2,437, Jul 8,475, Aug 8,257, Sep 5,794, Oct 17K, Nov 4,882, Dec 3,261010k20k30k40k4,366Jan2,368Feb37KMar4,602Apr10KMay2,437Jun8,475Jul8,257Aug5,794Sep17KOct4,882Nov3,261Dec
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Customer-hours; March was the worst month.

Knox County year over year

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Knox County, IL: average hours without power per customer by year2015: 7.7h; 2016: 4.0h; 2017: 0.7h; 2018: 2.9h, coverage 92%; 2019: 7.1h, coverage 99%; 2020: 5.7h, coverage 94%; 2021: 7.2h, coverage 98%; 2022: 4.2h, coverage 98%; 2023: 7.6h; 2024: 7.8h; 2025: 3.3h024680%50%100%7.7h20154.0h20160.7h20172.9h20187.1h20195.7h20207.2h20214.2h20227.6h20237.8h20243.3h2025
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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 Knox County, 2022

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
1March 6, 2022 00:00March 7, 2022 03:301d 3h8,57234K
2October 12, 2022 22:15October 14, 2022 18:451d 20h2,58014K
3April 14, 2022 16:00April 15, 2022 11:4519h 45m2,2862,247
4November 5, 2022 12:45November 6, 2022 08:0019h 15m2,0204,107
5August 25, 2022 18:30August 25, 2022 20:001h 30m1,2871,340
6August 1, 2022 06:30August 9, 2022 12:458d 6h1,2614,678
7May 13, 2022 22:15May 14, 2022 23:301d 1h9502,946
8September 4, 2022 09:30September 4, 2022 13:304h8102,491
9January 19, 2022 18:15January 20, 2022 01:157h746745
10July 5, 2022 01:45July 5, 2022 13:1511h 30m6254,438

Outage episodes by size in 2022: 55 reached 100+ customers, 6 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 Knox County reported on EIA Form 861 for 2022, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Ameren Illinois Company20222.7 hrs1.021.9 hrs0.88
Corn Belt Energy Corporation20222.7 hrs3.232.4 hrs3.19
Ameren-----
McDonough Power Coop-----
Spoon River Electric Coop, Inc-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 98% of Illinois's customers in 2022; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 25,998 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. Knox County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Knox County, IL annual power outage report, 2022, 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/2022/illinois/knox-county

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