massoutage

County annual report · FIPS 19175

2019 Union County, IA Power Outage Report

In 2019, customers in Union County, IA went without power for an average of 1.9 hours, a total of 12K customer-hours (Iowa average 2.2 hours). That ranks 64th worst of 99 Iowa counties and 2103rd of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
1.9
6,645 customers
Customer-hours out
12K
Peak customers out
5,453
Outages ≥1,000 out
3
0 of 10,000+ · 333 total
Longest outage
7d 10h
began September 11, 2019
Rank in state
64th/99
2103rd of 2,945 US

Compared with IA, the US and 2018

Union County, IA average hours without power per customer compared with state and national averages, 2019Union County 1.9 hours, Iowa average 2.2 hours, US average 4.7 hours, Union County, 2018 2.7 hoursUnion CountyUnion County1.9hIowa averageIowa average2.2hUS averageUS average4.7hUnion County, 2018Union County, 20182.7h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

CSVJSON
Union County, IA customer-hours without power by month, 2019Jan 25, Feb 49, Mar 828, Apr 593, May 5,953, Jun 1,316, Jul 174, Aug 557, Sep 773, Oct 749, Nov 1,098, Dec 21302k4k6k25Jan49Feb828Mar593Apr5,953May1,316Jun174Jul557Aug773Sep749Oct1,098Nov213Dec
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Customer-hours; May was the worst month.

Union County year over year

CSVJSON
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, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 24, 2019 06:15May 24, 2019 14:007h 45m5,4535,479
2June 28, 2019 00:45June 28, 2019 19:4519h1,345455
3March 9, 2019 22:00March 10, 2019 01:153h 15m1,199478
4September 23, 2019 15:30September 23, 2019 19:003h 30m715343
5November 25, 2019 19:45November 25, 2019 22:002h 15m606202
6November 23, 2019 04:30November 23, 2019 08:003h 30m160510
7November 2, 2019 19:15November 2, 2019 20:0045m15884
8June 6, 2019 01:00June 6, 2019 05:454h 45m156236
9October 5, 2019 06:15October 5, 2019 07:0045m141106
10May 4, 2019 19:45May 4, 2019 20:1530m13769

Outage episodes by size in 2019: 11 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 Union County reported on EIA Form 861 for 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Southwest Iowa Rural Elec Coop20182.4 hrs1.691.6 hrs1.21
Farmers Electric Coop, Inc - (IA)20185.9 hrs1.442.1 hrs1.26
WAPA-- Western Area Power Administration-----
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----
Clarke Electric Coop Inc - (IA)-----
City of Afton- (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 2019; 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, 2019, 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/2019/iowa/union-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON