massoutage

County annual report · FIPS 19147

2018 Palo Alto County, IA Power Outage Report

In 2018, customers in Palo Alto County, IA went without power for an average of 2.3 hours, a total of 9,388 customer-hours (Iowa average 2.2 hours). That ranks 46th worst of 99 Iowa counties and 1745th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
2.3
4,166 customers
Customer-hours out
9,388
Peak customers out
1,121
Outages ≥1,000 out
1
0 of 10,000+ · 168 total
Longest outage
1d 17h
began April 21, 2018
Rank in state
46th/99
1745th of 2,798 US

Compared with IA, the US and 2017

Palo Alto County, IA average hours without power per customer compared with state and national averages, 2018Palo Alto County 2.3 hours, Iowa average 2.2 hours, US average 5.6 hours, Palo Alto County, 2017 1.0 hoursPalo Alto CountyPalo Alto County2.3hIowa averageIowa average2.2hUS averageUS average5.6hPalo Alto County, 2017Palo Alto County, 20…1.0h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Palo Alto County, IA customer-hours without power by month, 2018Jan 279, Feb 23, Mar 78, Apr 880, May 492, Jun 385, Jul 449, Aug 2,099, Sep 3,756, Oct 307, Nov 17, Dec 62401k2k3k4k279Jan23Feb78Mar880Apr492May385Jun449Jul2,099Aug3,756Sep307Oct17Nov624Dec
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Customer-hours; September was the worst month.

Palo Alto County year over year

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Palo Alto County, IA: average hours without power per customer by year2015: 1.4h; 2016: 2.9h; 2017: 1.0h; 2018: 2.3h, coverage 89%; 2019: 1.4h, coverage 89%; 2020: 2.1h, coverage 91%; 2021: 3.5h, coverage 91%; 2022: 1.9h, coverage 91%; 2023: 1.3h; 2024: 2.5h; 2025: 1.3h012340%50%100%1.4h20152.9h20161.0h20172.3h20181.4h20192.1h20203.5h20211.9h20221.3h20232.5h20241.3h2025
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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 Palo Alto County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 20, 2018 23:00September 21, 2018 02:303h 30m1,1212,918
2August 8, 2018 21:30August 8, 2018 23:001h 30m705834
3December 1, 2018 16:00December 1, 2018 17:001h653497
4August 5, 2018 09:30August 5, 2018 19:009h 30m3171,023
5April 14, 2018 01:15April 15, 2018 15:151d 14h246781
6October 4, 2018 00:30October 4, 2018 02:452h 15m199258
7September 20, 2018 12:00September 20, 2018 17:155h 15m185319
8September 4, 2018 12:30September 4, 2018 14:302h162284
9January 22, 2018 18:45January 22, 2018 20:301h 45m154241
10September 21, 2018 03:30September 21, 2018 08:004h 30m11595

Outage episodes by size in 2018: 10 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 Palo Alto 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
MidAmerican Energy Co20181.9 hrs1.1875 min0.96
Iowa Lakes Electric Coop20181.8 hrs1.0688 min0.98
Interstate Power and Light Co-----
City of West Bend-----
City of Graettinger - (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 ÷ 4,166 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. Palo Alto County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Palo Alto 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/palo-alto-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON