massoutage

County annual report · FIPS 19155

2020 Pottawattamie County, IA Power Outage Report

In 2020, customers in Pottawattamie County, IA went without power for an average of 1.6 hours, a total of 83K customer-hours (Iowa average 27.4 hours). That ranks 70th worst of 99 Iowa counties and 2415th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
1.6
51,132 customers
Customer-hours out
83K
Peak customers out
10,553
Outages ≥1,000 out
14
1 of 10,000+ · 677 total
Longest outage
20d 4h
began November 3, 2020
Rank in state
70th/99
2415th of 3,019 US

Compared with IA, the US and 2019

Pottawattamie County, IA average hours without power per customer compared with state and national averages, 2020Pottawattamie County 1.6 hours, Iowa average 27.4 hours, US average 8.7 hours, Pottawattamie County, 2019 1.9 hoursPottawattamie CountyPottawattamie County1.6hIowa averageIowa average27.4hUS averageUS average8.7hPottawattamie County, 2019Pottawattamie County…1.9h
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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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Pottawattamie County, IA customer-hours without power by month, 2020Jan 7,084, Feb 1,800, Mar 19K, Apr 2,435, May 2,602, Jun 8,536, Jul 3,585, Aug 18K, Sep 5,666, Oct 4,933, Nov 7,382, Dec 1,93705k10k15k20k7,084Jan1,800Feb19KMar2,435Apr2,602May8,536Jun3,585Jul18KAug5,666Sep4,933Oct7,382Nov1,937Dec
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Customer-hours; March was the worst month.

Pottawattamie County year over year

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Pottawattamie County, IA: average hours without power per customer by year2015: 0.8h; 2016: 2.0h; 2017: 1.8h; 2018: 2.2h, coverage 89%; 2019: 1.9h, coverage 89%; 2020: 1.6h, coverage 91%; 2021: 6.6h, coverage 91%; 2022: 1.3h, coverage 91%; 2023: 2.0h; 2024: 7.0h; 2025: 1.8h024680%50%100%0.8h20152.0h20161.8h20172.2h20181.9h20191.6h20206.6h20211.3h20222.0h20237.0h20241.8h2025
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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 Pottawattamie County, 2020

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 29, 2020 07:45March 31, 2020 21:452d 14h10,5533,853
2March 23, 2020 05:00March 23, 2020 11:306h 30m4,1934,835
3August 10, 2020 11:45August 13, 2020 00:002d 12h3,14415K
4August 6, 2020 14:15August 6, 2020 18:003h 45m2,546646
5March 19, 2020 23:45March 20, 2020 19:4520h2,415910
6March 26, 2020 00:30March 26, 2020 03:303h2,2953,857
7March 16, 2020 16:00March 19, 2020 13:302d 21h2,2882,473
8March 5, 2020 16:15March 5, 2020 22:456h 30m2,2011,842
9January 8, 2020 22:45January 9, 2020 01:302h 45m1,9162,034
10January 7, 2020 14:00January 7, 2020 17:303h 30m1,494752

Outage episodes by size in 2020: 53 reached 100+ customers, 14 reached 1,000+ customers, 1 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 Pottawattamie County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
MidAmerican Energy Co202018.3 hrs1.4382 min0.79
Omaha Public Power District20202.2 hrs0.6879 min0.53
Waverly Municipal Elec Utility-----
Nishnabotna Valley R E C-----
Harrison County Rrl Elec Coop-----
Atlantic Municipal Utilities-----
City of Shelby - (IA)-----
City of Neola - (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 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 51,132 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. Pottawattamie County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Pottawattamie 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/pottawattamie-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON