massoutage

County annual report · FIPS 17179

2022 Tazewell County, IL Power Outage Report

In 2022, customers in Tazewell County, IL went without power for an average of 1.6 hours, a total of 128K customer-hours (Illinois average 1.6 hours). That ranks 73rd worst of 102 Illinois counties and 2466th of 2,976 nationally.

Summary data CSVJSON
Avg hrs / customer
1.6
80,878 customers
Customer-hours out
128K
Peak customers out
3,204
Outages ≥1,000 out
11
0 of 10,000+ · 813 total
Longest outage
5d 23h
began July 19, 2022
Rank in state
73rd/102
2466th of 2,976 US

Compared with IL, the US and 2021

Tazewell County, IL average hours without power per customer compared with state and national averages, 2022Tazewell County 1.6 hours, Illinois average 1.6 hours, US average 8.3 hours, Tazewell County, 2021 5.2 hoursTazewell CountyTazewell County1.6hIllinois averageIllinois average1.6hUS averageUS average8.3hTazewell County, 2021Tazewell County, 20215.2h
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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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Tazewell County, IL customer-hours without power by month, 2022Jan 3,872, Feb 4,333, Mar 17K, Apr 6,725, May 14K, Jun 9,194, Jul 8,836, Aug 26K, Sep 7,458, Oct 16K, Nov 9,374, Dec 5,391010k20k30k3,872Jan4,333Feb17KMar6,725Apr14KMay9,194Jun8,836Jul26KAug7,458Sep16KOct9,374Nov5,391Dec
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Customer-hours; August was the worst month.

Tazewell County year over year

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Tazewell County, IL: average hours without power per customer by year2015: 7.1h; 2016: 1.7h; 2017: 0.6h; 2018: 1.3h, coverage 92%; 2019: 1.7h, coverage 99%; 2020: 2.5h, coverage 94%; 2021: 5.2h, coverage 98%; 2022: 1.6h, coverage 98%; 2023: 2.9h; 2024: 6.2h; 2025: 1.9h024680%50%100%7.1h20151.7h20160.6h20171.3h20181.7h20192.5h20205.2h20211.6h20222.9h20236.2h20241.9h2025
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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 Tazewell 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
1April 10, 2022 03:45April 10, 2022 12:308h 45m3,2042,887
2March 6, 2022 04:00March 7, 2022 00:1520h 15m2,81610K
3November 5, 2022 08:15November 6, 2022 04:1520h2,0386,581
4August 1, 2022 10:00August 3, 2022 09:451d 23h1,99418K
5May 21, 2022 02:15May 21, 2022 16:1514h1,7096,325
6October 24, 2022 14:00October 24, 2022 21:157h 15m1,6812,389
7October 25, 2022 16:15October 26, 2022 11:1519h1,6124,983
8October 19, 2022 13:15October 20, 2022 02:4513h 30m1,4821,393
9October 14, 2022 20:30October 17, 2022 12:002d 15h1,3823,412
10December 1, 2022 21:00December 2, 2022 08:1511h 15m1,2531,007

Outage episodes by size in 2022: 82 reached 100+ customers, 11 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 Tazewell 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
Menard Electric Coop20222.0 hrs1.392.0 hrs1.39
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 2022; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 80,878 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. Tazewell County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Tazewell 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/tazewell-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON