massoutage

County annual report · FIPS 19131

2018 Mitchell County, IA Power Outage Report

In 2018, customers in Mitchell County, IA went without power for an average of 2.1 hours, a total of 13K customer-hours (Iowa average 2.2 hours). That ranks 51st worst of 99 Iowa counties and 1835th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
2.1
6,347 customers
Customer-hours out
13K
Peak customers out
1,386
Outages ≥1,000 out
1
0 of 10,000+ · 169 total
Longest outage
1d 21h
began January 13, 2018
Rank in state
51st/99
1835th of 2,798 US

Compared with IA, the US and 2017

Mitchell County, IA average hours without power per customer compared with state and national averages, 2018Mitchell County 2.1 hours, Iowa average 2.2 hours, US average 5.6 hours, Mitchell County, 2017 2.5 hoursMitchell CountyMitchell County2.1hIowa averageIowa average2.2hUS averageUS average5.6hMitchell County, 2017Mitchell County, 20172.5h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

CSVJSON
Mitchell County, IA customer-hours without power by month, 2018Jan 921, Feb 52, Mar 1,545, Apr 371, May 354, Jun 6,425, Jul 500, Aug 291, Sep 106, Oct 1,275, Nov 1,386, Dec 1402k4k6k8k921Jan52Feb1,545Mar371Apr354May6,425Jun500Jul291Aug106Sep1,275Oct1,386Nov14Dec
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Customer-hours; June was the worst month.

Mitchell County year over year

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Mitchell County, IA: average hours without power per customer by year2015: 0.4h; 2016: 1.4h; 2017: 2.5h; 2018: 2.1h, coverage 89%; 2019: 7.5h, coverage 89%; 2020: 1.5h, coverage 91%; 2021: 10.3h, coverage 91%; 2022: 2.1h, coverage 91%; 2023: 1.6h; 2024: 2.6h; 2025: 2.6h0510150%50%100%0.4h20151.4h20162.5h20172.1h20187.5h20191.5h202010.3h20212.1h20221.6h20232.6h20242.6h2025
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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 Mitchell County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 2, 2018 14:00June 3, 2018 06:0016h1,3865,899
2March 5, 2018 18:00March 6, 2018 01:007h5021,132
3November 23, 2018 18:15November 23, 2018 22:454h 30m4311,300
4July 30, 2018 20:00July 30, 2018 20:3030m375188
5October 21, 2018 17:30October 21, 2018 21:304h2701,036
6January 17, 2018 23:00January 18, 2018 03:304h 30m245709
7May 28, 2018 23:15May 29, 2018 04:305h 15m203141
8June 30, 2018 20:30July 1, 2018 05:309h152343
9April 14, 2018 21:45April 14, 2018 23:151h 30m9664
10March 24, 2018 05:15March 24, 2018 10:305h 15m79376

Outage episodes by size in 2018: 8 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 Mitchell County reported on EIA Form 861 for 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Heartland Power Coop20181.8 hrs1.141.7 hrs1.14
MiEnergy Cooperative20182.3 hrs0.8286 min0.70
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----
City of Osage - (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 89% of Iowa's customers in 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 6,347 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. Mitchell County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Mitchell County, IA annual power outage report, 2018, 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/2018/iowa/mitchell-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON