massoutage

County annual report · FIPS 19185

2021 Wayne County, IA Power Outage Report

In 2021, customers in Wayne County, IA went without power for an average of 5.9 hours, a total of 17K customer-hours (Iowa average 2.7 hours). That ranks 25th worst of 99 Iowa counties and 1172nd of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
5.9
2,947 customers
Customer-hours out
17K
Peak customers out
1,144
Outages ≥1,000 out
1
0 of 10,000+ · 179 total
Longest outage
2d 16h
began August 27, 2021
Rank in state
25th/99
1172nd of 2,974 US

Compared with IA, the US and 2020

Wayne County, IA average hours without power per customer compared with state and national averages, 2021Wayne County 5.9 hours, Iowa average 2.7 hours, US average 8.9 hours, Wayne County, 2020 1.7 hoursWayne CountyWayne County5.9hIowa averageIowa average2.7hUS averageUS average8.9hWayne County, 2020Wayne County, 20201.7h
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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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Wayne County, IA customer-hours without power by month, 2021Jan 221, Feb 79, Mar 163, Apr 214, May 179, Jun 1,523, Jul 103, Aug 3,686, Sep 591, Oct 125, Nov 1,697, Dec 8,69502.5k5k7.5k10k221Jan79Feb163Mar214Apr179May1,523Jun103Jul3,686Aug591Sep125Oct1,697Nov8,695Dec
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Customer-hours; December was the worst month.

Wayne County year over year

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Wayne County, IA: average hours without power per customer by year2015: 1.6h; 2016: 1.8h; 2017: 6.9h; 2018: 4.0h, coverage 89%; 2019: 2.6h, coverage 89%; 2020: 1.7h, coverage 91%; 2021: 5.9h, coverage 91%; 2022: 3.2h, coverage 91%; 2023: 7.4h; 2024: 12.4h; 2025: 9.2h0510150%50%100%1.6h20151.8h20166.9h20174.0h20182.6h20191.7h20205.9h20213.2h20227.4h202312.4h20249.2h2025
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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 Iowa customers tracked each year.

Biggest outages in Wayne County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 15, 2021 19:00December 17, 2021 05:451d 10h1,1447,605
2December 7, 2021 16:45December 7, 2021 20:003h 15m4971,033
3June 19, 2021 05:15June 19, 2021 20:4515h 30m4571,127
4November 15, 2021 16:30November 15, 2021 17:451h 15m373461
5November 13, 2021 09:45November 13, 2021 12:152h 30m364910
6March 17, 2021 18:00March 17, 2021 18:3030m11658
7September 20, 2021 23:00September 21, 2021 18:3019h 30m78519
8August 14, 2021 20:45August 16, 2021 19:001d 22h743,421
9October 10, 2021 13:15October 11, 2021 14:151d 1h6269
10June 19, 2021 22:00June 19, 2021 23:001h5151

Outage episodes by size in 2021: 6 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 Wayne County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Chariton Valley Elec Coop, Inc20182.3 hrs1.232.3 hrs1.23
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----
Grundy Electric Coop, Inc-----
Clarke Electric Coop Inc - (IA)-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 91% of Iowa's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 2,947 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. Wayne County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Wayne County, IA 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/iowa/wayne-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON