massoutage

County annual report · FIPS 19175

2016 Union County, IA Power Outage Report

In 2016, customers in Union County, IA went without power for an average of 0.4 hours, a total of 2,737 customer-hours (Iowa average 1.8 hours). That ranks 91st worst of 99 Iowa counties and 2069th of 2,391 nationally.

Summary data CSVJSON
Avg hrs / customer
0.4
6,645 customers
Customer-hours out
2,737
Peak customers out
994
Outages ≥1,000 out
0
0 of 10,000+ · 162 total
Longest outage
10h 45m
began November 23, 2016
Rank in state
91st/99
2069th of 2,391 US

Compared with IA, the US and 2015

Union County, IA average hours without power per customer compared with state and national averages, 2016Union County 0.4 hours, Iowa average 1.8 hours, US average 3.9 hours, Union County, 2015 0.8 hoursUnion CountyUnion County0.4hIowa averageIowa average1.8hUS averageUS average3.9hUnion County, 2015Union County, 20150.8h
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Average hours without power per customer in 2016; last bar is this county in 2015.

Month by month

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Union County, IA customer-hours without power by month, 2016Jan 18, Feb 92, Mar 202, Apr 103, May 118, Jun 175, Jul 1,009, Aug 315, Sep 185, Oct 330, Nov 143, Dec 4905001k1.5k18Jan92Feb202Mar103Apr118May175Jun1,009Jul315Aug185Sep330Oct143Nov49Dec
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Customer-hours; July was the worst month.

Union County year over year

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Union County, IA: average hours without power per customer by year2015: 0.8h; 2016: 0.4h; 2017: 1.1h; 2018: 2.7h, coverage 89%; 2019: 1.9h, coverage 89%; 2020: 1.3h, coverage 91%; 2021: 2.7h, coverage 91%; 2022: 2.0h, coverage 91%; 2023: 1.5h; 2024: 2.3h; 2025: 1.9h01230%50%100%0.8h20150.4h20161.1h20172.7h20181.9h20191.3h20202.7h20212.0h20221.5h20232.3h20241.9h2025
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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 Union County, 2016

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
1August 22, 2016 02:45August 22, 2016 03:451h994253
2July 4, 2016 16:15July 4, 2016 16:3015m711178
3October 8, 2016 17:15October 8, 2016 17:4530m482122
4July 19, 2016 18:15July 20, 2016 00:156h341434
5May 14, 2016 23:15May 15, 2016 00:0045m9773
6December 12, 2016 17:15December 12, 2016 17:4530m8844
7April 7, 2016 15:45April 7, 2016 16:1530m7538
8September 17, 2016 22:45September 18, 2016 00:001h 15m6977
9September 14, 2016 19:00September 14, 2016 19:3030m5930
10October 19, 2016 14:15October 19, 2016 14:4530m5930

Outage episodes by size in 2016: 4 reached 100+ customers, 0 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 Union County reported on EIA Form 861 for 2016, or their most recent earlier filing. Utility-wide figures, not county-specific.

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About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Iowa's customers in 2016; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 6,645 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. Union County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Union County, IA annual power outage report, 2016, 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/2016/iowa/union-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON