massoutage

County annual report · FIPS 17093

2020 Kendall County, IL Power Outage Report

In 2020, customers in Kendall County, IL went without power for an average of 1.8 hours, a total of 169K customer-hours (Illinois average 5.9 hours). That ranks 79th worst of 102 Illinois counties and 2329th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
1.8
92,751 customers
Customer-hours out
169K
Peak customers out
7,530
Outages ≥1,000 out
8
0 of 10,000+ · 527 total
Longest outage
6d 4h
began August 10, 2020
Rank in state
79th/102
2329th of 3,019 US

Compared with IL, the US and 2019

Kendall County, IL average hours without power per customer compared with state and national averages, 2020Kendall County 1.8 hours, Illinois average 5.9 hours, US average 8.7 hours, Kendall County, 2019 1.4 hoursKendall CountyKendall County1.8hIllinois averageIllinois average5.9hUS averageUS average8.7hKendall County, 2019Kendall County, 20191.4h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Kendall County, IL customer-hours without power by month, 2020Jan 5,479, Feb 3,132, Mar 1,524, Apr 1,752, May 3,018, Jun 7,751, Jul 7,392, Aug 132K, Sep 2,152, Oct 2,714, Nov 657, Dec 811050k100k150k5,479Jan3,132Feb1,524Mar1,752Apr3,018May7,751Jun7,392Jul132KAug2,152Sep2,714Oct657Nov811Dec
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Customer-hours; August was the worst month.

Kendall County year over year

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Kendall County, IL: average hours without power per customer by year2015: 0.5h; 2016: 0.3h; 2017: 0.8h; 2018: 1.4h, coverage 92%; 2019: 1.4h, coverage 99%; 2020: 1.8h, coverage 94%; 2021: 0.9h, coverage 98%; 2022: 0.5h, coverage 98%; 2023: 0.8h; 2024: 0.5h; 2025: 1.0h00.511.520%50%100%0.5h20150.3h20160.8h20171.4h20181.4h20191.8h20200.9h20210.5h20220.8h20230.5h20241.0h2025
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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 Kendall County, 2020

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
1August 10, 2020 21:15August 17, 2020 01:306d 4h7,530131K
2June 27, 2020 00:45June 27, 2020 21:0020h 15m1,3454,361
3October 28, 2020 07:15October 28, 2020 14:307h 15m1,3171,386
4May 23, 2020 20:30May 24, 2020 23:001d 2h1,257515
5February 14, 2020 12:15February 14, 2020 15:303h 15m1,2521,359
6January 11, 2020 07:15January 11, 2020 10:303h 15m1,1113,076
7July 19, 2020 16:30July 20, 2020 03:4511h 15m1,0744,061
8January 8, 2020 03:45January 8, 2020 10:156h 30m1,0671,366
9August 25, 2020 16:45August 25, 2020 22:305h 45m994344
10March 29, 2020 18:30March 29, 2020 23:154h 45m962488

Outage episodes by size in 2020: 42 reached 100+ customers, 8 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 Kendall County reported on EIA Form 861 for 2020, 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 Company20203.7 hrs1.041.7 hrs0.82
Commonwealth Edison Co20205.7 hrs0.8340 min0.55
Corn Belt Energy Corporation20205.2 hrs4.462.8 hrs3.97

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 94% of Illinois's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 92,751 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. Kendall County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Kendall County, IL annual power outage report, 2020, 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/2020/illinois/kendall-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON