massoutage

County annual report · FIPS 17075

2020 Iroquois County, IL Power Outage Report

In 2020, customers in Iroquois County, IL went without power for an average of 4.0 hours, a total of 40K customer-hours (Illinois average 5.9 hours). That ranks 44th worst of 102 Illinois counties and 1607th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
4.0
10,038 customers
Customer-hours out
40K
Peak customers out
3,751
Outages ≥1,000 out
2
0 of 10,000+ · 442 total
Longest outage
5d 3h
began August 10, 2020
Rank in state
44th/102
1607th of 3,019 US

Compared with IL, the US and 2019

Iroquois County, IL average hours without power per customer compared with state and national averages, 2020Iroquois County 4.0 hours, Illinois average 5.9 hours, US average 8.7 hours, Iroquois County, 2019 8.1 hoursIroquois CountyIroquois County4.0hIllinois averageIllinois average5.9hUS averageUS average8.7hIroquois County, 2019Iroquois County, 20198.1h
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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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Iroquois County, IL customer-hours without power by month, 2020Jan 3,199, Feb 345, Mar 374, Apr 867, May 534, Jun 1,426, Jul 3,186, Aug 27K, Sep 651, Oct 1,014, Nov 1,197, Dec 561010k20k30k3,199Jan345Feb374Mar867Apr534May1,426Jun3,186Jul27KAug651Sep1,014Oct1,197Nov561Dec
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Customer-hours; August was the worst month.

Iroquois County year over year

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Iroquois County, IL: average hours without power per customer by year2015: 1.4h; 2016: 3.4h; 2017: 0.5h; 2018: 2.8h, coverage 92%; 2019: 8.1h, coverage 99%; 2020: 4.0h, coverage 94%; 2021: 4.6h, coverage 98%; 2022: 2.3h, coverage 98%; 2023: 2.7h; 2024: 5.2h; 2025: 4.1h02.557.5100%50%100%1.4h20153.4h20160.5h20172.8h20188.1h20194.0h20204.6h20212.3h20222.7h20235.2h20244.1h2025
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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 Iroquois 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 21:00August 16, 2020 00:155d 3h3,75126K
2January 23, 2020 17:45January 23, 2020 21:303h 45m3,5402,327
3January 29, 2020 06:15January 29, 2020 08:001h 45m681405
4April 23, 2020 17:30April 23, 2020 17:4515m575144
5December 22, 2020 18:45December 22, 2020 19:451h378192
6November 23, 2020 20:45November 23, 2020 22:151h 30m336419
7July 11, 2020 18:30July 13, 2020 20:002d 1h276897
8October 18, 2020 14:30October 18, 2020 15:1545m218115
9April 29, 2020 02:15April 29, 2020 06:454h 30m178371
10July 28, 2020 10:00July 30, 2020 12:452d 2h1621,614

Outage episodes by size in 2020: 16 reached 100+ customers, 2 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 Iroquois 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
Eastern Illinois Elec Coop20202.5 hrs1.471.8 hrs1.21
Ameren-----

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 ÷ 10,038 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. Iroquois County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Iroquois 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/iroquois-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON