massoutage

County annual report · FIPS 19083

2021 Hardin County, IA Power Outage Report

In 2021, customers in Hardin County, IA went without power for an average of 2.4 hours, a total of 16K customer-hours (Iowa average 2.7 hours). That ranks 55th worst of 99 Iowa counties and 2085th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
2.4
6,885 customers
Customer-hours out
16K
Peak customers out
2,872
Outages ≥1,000 out
3
0 of 10,000+ · 301 total
Longest outage
1d 5h
began December 16, 2021
Rank in state
55th/99
2085th of 2,974 US

Compared with IA, the US and 2020

Hardin County, IA average hours without power per customer compared with state and national averages, 2021Hardin County 2.4 hours, Iowa average 2.7 hours, US average 8.9 hours, Hardin County, 2020 21.1 hoursHardin CountyHardin County2.4hIowa averageIowa average2.7hUS averageUS average8.9hHardin County, 2020Hardin County, 202021.1h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

CSVJSON
Hardin County, IA customer-hours without power by month, 2021Jan 41, Feb 64, Mar 749, Apr 647, May 483, Jun 282, Jul 90, Aug 638, Sep 370, Oct 239, Nov 479, Dec 12K05k10k15k41Jan64Feb749Mar647Apr483May282Jun90Jul638Aug370Sep239Oct479Nov12KDec
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Customer-hours; December was the worst month.

Hardin County year over year

CSVJSON
Hardin County, IA: average hours without power per customer by year2015: 1.4h; 2016: 4.0h; 2017: 1.9h; 2018: 2.5h, coverage 89%; 2019: 2.5h, coverage 89%; 2020: 21.1h, coverage 91%; 2021: 2.4h, coverage 91%; 2022: 2.0h, coverage 91%; 2023: 1.2h; 2024: 1.5h; 2025: 3.7h01020300%50%100%1.4h20154.0h20161.9h20172.5h20182.5h201921.1h20202.4h20212.0h20221.2h20231.5h20243.7h2025
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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 Hardin 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 11, 2021 03:30December 11, 2021 20:1516h 45m2,8722,204
2December 16, 2021 00:30December 17, 2021 05:301d 5h2,2539,772
3April 13, 2021 16:00April 13, 2021 16:1515m2,067517
4August 5, 2021 16:15August 5, 2021 18:152h560452
5May 27, 2021 14:45May 27, 2021 16:001h 15m215269
6October 2, 2021 19:15October 2, 2021 20:151h15294
7March 18, 2021 07:30March 18, 2021 09:452h 15m104234
8September 30, 2021 10:30September 30, 2021 11:451h 15m103129
9September 30, 2021 13:15September 30, 2021 13:4530m10352
10November 3, 2021 14:30November 3, 2021 17:453h 15m101278

Outage episodes by size in 2021: 10 reached 100+ customers, 3 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 Hardin 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
MidAmerican Energy Co20211.9 hrs1.0475 min0.74
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----
Midland Power Coop-----
Prairie Energy Coop-----
Franklin Rural Electric Coop - (IA)-----
Grundy County Rural Elec Coop-----

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 ÷ 6,885 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. Hardin County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Hardin 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/hardin-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON