massoutage

County annual report · FIPS 17203

2021 Woodford County, IL Power Outage Report

In 2021, customers in Woodford County, IL went without power for an average of 5.5 hours, a total of 133K customer-hours (Illinois average 2.3 hours). That ranks 17th worst of 102 Illinois counties and 1232nd of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
5.5
24,080 customers
Customer-hours out
133K
Peak customers out
2,830
Outages ≥1,000 out
6
0 of 10,000+ · 499 total
Longest outage
6d 14h
began January 1, 2021
Rank in state
17th/102
1232nd of 2,974 US

Compared with IL, the US and 2020

Woodford County, IL average hours without power per customer compared with state and national averages, 2021Woodford County 5.5 hours, Illinois average 2.3 hours, US average 8.9 hours, Woodford County, 2020 3.8 hoursWoodford CountyWoodford County5.5hIllinois averageIllinois average2.3hUS averageUS average8.9hWoodford County, 2020Woodford County, 20203.8h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Woodford County, IL customer-hours without power by month, 2021Jan 80K, Feb 2,117, Mar 6,892, Apr 1,675, May 4,132, Jun 9,726, Jul 7,958, Aug 2,051, Sep 1,287, Oct 6,245, Nov 530, Dec 11K020k40k60k80k80KJan2,117Feb6,892Mar1,675Apr4,132May9,726Jun7,958Jul2,051Aug1,287Sep6,245Oct530Nov11KDec
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Customer-hours; January was the worst month.

Woodford County year over year

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Woodford County, IL: average hours without power per customer by year2015: 10.8h; 2016: 1.7h; 2017: 0.6h; 2018: 1.1h, coverage 92%; 2019: 2.2h, coverage 99%; 2020: 3.8h, coverage 94%; 2021: 5.5h, coverage 98%; 2022: 1.5h, coverage 98%; 2023: 3.7h; 2024: 4.6h; 2025: 2.6h0510150%50%100%10.8h20151.7h20160.6h20171.1h20182.2h20193.8h20205.5h20211.5h20223.7h20234.6h20242.6h2025
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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 Woodford County, 2021

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
1June 19, 2021 05:15June 21, 2021 15:152d 10h2,8308,303
2January 1, 2021 16:00January 8, 2021 06:156d 14h2,70279K
3March 15, 2021 08:30March 16, 2021 06:1521h 45m1,7194,974
4December 11, 2021 02:45December 12, 2021 10:451d 8h1,4275,765
5October 29, 2021 17:30October 29, 2021 18:301h1,4181,141
6July 30, 2021 04:30July 30, 2021 11:307h1,0775,549
7March 10, 2021 19:00March 11, 2021 01:006h948840
8February 21, 2021 23:00February 22, 2021 01:152h 15m946649
9December 16, 2021 03:00December 16, 2021 23:4520h 45m8432,547
10October 29, 2021 19:45October 29, 2021 22:002h 15m6911,553

Outage episodes by size in 2021: 41 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 Woodford County reported on EIA Form 861 for 2021, 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 Company20213.2 hrs1.112.0 hrs0.88
Commonwealth Edison Co20211.7 hrs0.7743 min0.59
Corn Belt Energy Corporation202112.3 hrs6.643.7 hrs4.71
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 98% of Illinois's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 24,080 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. Woodford County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Woodford County, IL annual power outage report, 2021, 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/2021/illinois/woodford-county

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