massoutage

County annual report · FIPS 17103

2018 Lee County, IL Power Outage Report

In 2018, customers in Lee County, IL went without power for an average of 1.1 hours, a total of 28K customer-hours (Illinois average 2.5 hours). That ranks 84th worst of 102 Illinois counties and 2268th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
1.1
25,665 customers
Customer-hours out
28K
Peak customers out
1,425
Outages ≥1,000 out
1
0 of 10,000+ · 366 total
Longest outage
1d 19h
began November 26, 2018
Rank in state
84th/102
2268th of 2,798 US

Compared with IL, the US and 2017

Lee County, IL average hours without power per customer compared with state and national averages, 2018Lee County 1.1 hours, Illinois average 2.5 hours, US average 5.6 hours, Lee County, 2017 2.4 hoursLee CountyLee County1.1hIllinois averageIllinois average2.5hUS averageUS average5.6hLee County, 2017Lee County, 20172.4h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Lee County, IL customer-hours without power by month, 2018Jan 894, Feb 823, Mar 469, Apr 1,336, May 6,989, Jun 1,569, Jul 1,203, Aug 8,243, Sep 1,706, Oct 2,312, Nov 2,635, Dec 30602.5k5k7.5k10k894Jan823Feb469Mar1,336Apr6,989May1,569Jun1,203Jul8,243Aug1,706Sep2,312Oct2,635Nov306Dec
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Customer-hours; August was the worst month.

Lee County year over year

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Lee County, IL: average hours without power per customer by year2015: 9.4h; 2016: 0.9h; 2017: 2.4h; 2018: 1.1h, coverage 92%; 2019: 4.2h, coverage 99%; 2020: 8.8h, coverage 94%; 2021: 5.2h, coverage 98%; 2022: 1.2h, coverage 98%; 2023: 15.1h; 2024: 1.6h; 2025: 1.0h051015200%50%100%9.4h20150.9h20162.4h20171.1h20184.2h20198.8h20205.2h20211.2h202215.1h20231.6h20241.0h2025
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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 Lee County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 28, 2018 19:30August 30, 2018 10:301d 15h1,4257,367
2October 8, 2018 02:00October 8, 2018 03:301h 30m9011,352
3April 15, 2018 12:30April 15, 2018 13:0030m823412
4January 1, 2018 12:15January 1, 2018 19:157h732401
5June 22, 2018 14:30June 23, 2018 00:009h 30m707678
6May 12, 2018 05:00May 12, 2018 07:302h 30m6081,191
7May 18, 2018 09:00May 18, 2018 14:305h 30m607925
8May 27, 2018 10:30May 27, 2018 15:004h 30m4301,580
9November 1, 2018 02:30November 1, 2018 03:0030m404202
10May 18, 2018 18:30May 18, 2018 21:303h279789

Outage episodes by size in 2018: 18 reached 100+ customers, 1 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 Lee County reported on EIA Form 861 for 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Commonwealth Edison Co20182.0 hrs0.8258 min0.70
Rochelle Municipal Utilities-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 92% of Illinois's customers in 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 25,665 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. Lee County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Lee County, IL annual power outage report, 2018, 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/2018/illinois/lee-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON