massoutage

County annual report · FIPS 19191

2020 Winneshiek County, IA Power Outage Report

In 2020, customers in Winneshiek County, IA went without power for an average of 1.7 hours, a total of 16K customer-hours (Iowa average 27.4 hours). That ranks 69th worst of 99 Iowa counties and 2390th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
1.7
9,369 customers
Customer-hours out
16K
Peak customers out
4,246
Outages ≥1,000 out
1
0 of 10,000+ · 299 total
Longest outage
3d 3h
began May 19, 2020
Rank in state
69th/99
2390th of 3,019 US

Compared with IA, the US and 2019

Winneshiek County, IA average hours without power per customer compared with state and national averages, 2020Winneshiek County 1.7 hours, Iowa average 27.4 hours, US average 8.7 hours, Winneshiek County, 2019 2.1 hoursWinneshiek CountyWinneshiek County1.7hIowa averageIowa average27.4hUS averageUS average8.7hWinneshiek County, 2019Winneshiek County, 2…2.1h
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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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Winneshiek County, IA customer-hours without power by month, 2020Jan 878, Feb 195, Mar 135, Apr 624, May 412, Jun 2,138, Jul 1,020, Aug 682, Sep 8,282, Oct 829, Nov 444, Dec 3202.5k5k7.5k10k878Jan195Feb135Mar624Apr412May2,138Jun1,020Jul682Aug8,282Sep829Oct444Nov32Dec
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Customer-hours; September was the worst month.

Winneshiek County year over year

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Winneshiek County, IA: average hours without power per customer by year2015: 0.9h; 2016: 2.1h; 2017: 8.4h; 2018: 2.4h, coverage 89%; 2019: 2.1h, coverage 89%; 2020: 1.7h, coverage 91%; 2021: 11.5h, coverage 91%; 2022: 5.7h, coverage 91%; 2023: 0.9h; 2024: 2.2h; 2025: 1.9h0510150%50%100%0.9h20152.1h20168.4h20172.4h20182.1h20191.7h202011.5h20215.7h20220.9h20232.2h20241.9h2025
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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 Iowa customers tracked each year.

Biggest outages in Winneshiek County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 19, 2020 14:15September 19, 2020 16:001h 45m4,2464,248
2September 6, 2020 07:00September 6, 2020 10:453h 45m9902,632
3June 29, 2020 18:45June 29, 2020 20:151h 30m864433
4April 7, 2020 14:00April 7, 2020 14:1515m468117
5January 6, 2020 15:00January 6, 2020 17:002h416304
6September 8, 2020 14:15September 8, 2020 18:454h 30m3321,014
7September 9, 2020 11:30September 9, 2020 12:1545m312233
8June 20, 2020 10:00June 20, 2020 11:301h 30m308462
9November 23, 2020 17:00November 23, 2020 20:453h 45m30680
10June 4, 2020 20:45June 5, 2020 23:001d 2h227452

Outage episodes by size in 2020: 15 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 Winneshiek County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
MiEnergy Cooperative202055 min0.4755 min0.47
Allamakee-Clayton El Coop, Inc20181.5 hrs0.731.5 hrs0.73
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----

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 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 9,369 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. Winneshiek County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Winneshiek County, IA 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/iowa/winneshiek-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON