massoutage

County annual report · FIPS 17159

2021 Richland County, IL Power Outage Report

In 2021, customers in Richland County, IL went without power for an average of 1.5 hours, a total of 14K customer-hours (Illinois average 2.3 hours). That ranks 84th worst of 102 Illinois counties and 2452nd of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
1.5
9,109 customers
Customer-hours out
14K
Peak customers out
708
Outages ≥1,000 out
0
0 of 10,000+ · 284 total
Longest outage
1d 5h
began August 29, 2021
Rank in state
84th/102
2452nd of 2,974 US

Compared with IL, the US and 2020

Richland County, IL average hours without power per customer compared with state and national averages, 2021Richland County 1.5 hours, Illinois average 2.3 hours, US average 8.9 hours, Richland County, 2020 1.2 hoursRichland CountyRichland County1.5hIllinois averageIllinois average2.3hUS averageUS average8.9hRichland County, 2020Richland County, 20201.2h
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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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Richland County, IL customer-hours without power by month, 2021Jan 304, Feb 3,205, Mar 184, Apr 414, May 1,215, Jun 494, Jul 1,024, Aug 2,258, Sep 460, Oct 4,021, Nov 83, Dec 37802k4k6k304Jan3,205Feb184Mar414Apr1,215May494Jun1,024Jul2,258Aug460Sep4,021Oct83Nov378Dec
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Customer-hours; October was the worst month.

Richland County year over year

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Richland County, IL: average hours without power per customer by year2015: 0.4h; 2016: 1.9h; 2017: 0.6h; 2018: 1.3h, coverage 92%; 2019: 0.4h, coverage 99%; 2020: 1.2h, coverage 94%; 2021: 1.5h, coverage 98%; 2022: 5.9h, coverage 98%; 2023: 2.1h; 2024: 2.6h; 2025: 1.9h02460%50%100%0.4h20151.9h20160.6h20171.3h20180.4h20191.2h20201.5h20215.9h20222.1h20232.6h20241.9h2025
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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 Richland 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
1October 11, 2021 20:00October 12, 2021 18:3022h 30m7083,950
2April 27, 2021 16:45April 27, 2021 21:304h 45m454225
3August 29, 2021 09:15August 30, 2021 14:151d 5h4311,123
4August 30, 2021 18:15August 30, 2021 22:003h 45m34291
5February 6, 2021 01:45February 6, 2021 15:1513h 30m2272,951
6May 11, 2021 18:15May 11, 2021 21:303h 15m194449
7August 12, 2021 22:30August 13, 2021 03:305h162810
8July 24, 2021 02:45July 24, 2021 06:303h 45m155511
9August 5, 2021 18:30August 5, 2021 21:303h130133
10September 4, 2021 14:15September 4, 2021 16:152h129258

Outage episodes by size in 2021: 11 reached 100+ customers, 0 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 Richland 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
Ameren-----
Wayne-White Counties Elec Coop-----
Norris Electric Coop-----
Clay Electric Coop Inc-----

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 ÷ 9,109 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. Richland County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Richland 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/richland-county

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