massoutage

County annual report · FIPS 19143

2021 Osceola County, IA Power Outage Report

In 2021, customers in Osceola County, IA went without power for an average of 0.5 hours, a total of 1,742 customer-hours (Iowa average 2.7 hours). That ranks 98th worst of 99 Iowa counties and 2816th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
0.5
3,588 customers
Customer-hours out
1,742
Peak customers out
1,063
Outages ≥1,000 out
1
0 of 10,000+ · 36 total
Longest outage
14h 45m
began December 16, 2021
Rank in state
98th/99
2816th of 2,974 US

Compared with IA, the US and 2020

Osceola County, IA average hours without power per customer compared with state and national averages, 2021Osceola County 0.5 hours, Iowa average 2.7 hours, US average 8.9 hours, Osceola County, 2020 0.5 hoursOsceola CountyOsceola County0.5hIowa averageIowa average2.7hUS averageUS average8.9hOsceola County, 2020Osceola County, 20200.5h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

CSVJSON
Osceola County, IA customer-hours without power by month, 2021Jan 5, Feb 27, Mar 7, Apr 27, May 93, Jun 7, Jul 5, Aug 176, Sep 15, Oct 11, Nov 273, Dec 1,09705001k1.5k5Jan27Feb7Mar27Apr93May7Jun5Jul176Aug15Sep11Oct273Nov1,097Dec
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Customer-hours; December was the worst month.

Osceola County year over year

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Osceola County, IA: average hours without power per customer by year2015: 0.6h; 2016: 0.2h; 2017: 0.2h; 2018: 1.7h, coverage 89%; 2019: 6.3h, coverage 89%; 2020: 0.5h, coverage 91%; 2021: 0.5h, coverage 91%; 2022: 0.5h, coverage 91%; 2023: 0.3h; 2024: 0.3h; 2025: 2.0h024680%50%100%0.6h20150.2h20160.2h20171.7h20186.3h20190.5h20200.5h20210.5h20220.3h20230.3h20242.0h2025
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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 Osceola County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1November 1, 2021 13:30November 1, 2021 13:4515m1,063266
2December 16, 2021 03:45December 16, 2021 18:3014h 45m171755
3December 29, 2021 04:45December 29, 2021 06:452h171342
4August 6, 2021 02:45August 6, 2021 04:452h152168
5May 25, 2021 03:45May 25, 2021 05:151h 30m4365
6April 6, 2021 04:15April 6, 2021 07:303h 15m1524
7May 27, 2021 13:45May 27, 2021 15:452h1428
8September 30, 2021 23:15October 1, 2021 00:451h 30m1320
9February 16, 2021 14:45February 16, 2021 16:452h918
10September 28, 2021 15:00September 28, 2021 16:001h55

Outage episodes by size in 2021: 4 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 Osceola 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
Iowa Lakes Electric Coop202175 min0.8465 min0.80
Federated Rural Electric Assn20212.0 hrs0.992.0 hrs0.99
Nobles Cooperative Electric20184.0 hrs1.094.0 hrs1.09
Osceola Electric Coop, Inc20182.4 hrs4.212.4 hrs4.21
Lyon Rural Electric Coop201834 min0.3834 min0.38
Interstate Power and Light Co-----
North West Rural Electric Coop-----
City of Sibley - (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 ÷ 3,588 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. Osceola County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Osceola 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/osceola-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON