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Editor: Katerine G., Editor & Data Researcher · Research & publishing: Electric Consumer Editorial Team · Data retrieved · Sources are named in the page text · How we got these numbers · Report an error

Iowa major outage reports

19outage and emergency reports naming Iowa, 2014 to 2023

Iowa is named in 19 DOE reports for 2014 to 2023, and Iowa ranks 45th of 51 by count and 39th per resident. Iowa runs below the U.S. average, at 5.9 per million people. Iowa peaked in 2021 with 4; equipment failures and system operations lead with 42% of Iowa's reports. The largest customer count in an Iowa-only report is 250,000, dated 10 Aug 2020. Treat 19 as DOE-threshold filings, not every Iowa outage.

Iowa reports by year

Iowa filed 5 in 2014 to 2018 and 14 in 2019 to 2023, a rise of 180%, with 21% of the Iowa total landing in 2021.

Iowa reports a year

  1. 3'14
  2. 0'15
  3. 1'16
  4. 0'17
  5. 1'18
  6. 2'19
  7. 3'20
  8. 4'21
  9. 4'22
  10. 1'23

What Iowa reports are about

Reports by cause group, Iowa
CauseReportsShare
Equipment failures and system operations842%
Severe weather and natural disasters632%
Physical attacks, vandalism and suspicious activity526%
Most common event types, Iowa
TypeReportsShare
System Operations737%
Severe Weather632%
Vandalism211%

9 of the 19 Iowa reports also name another state, while 10 name Iowa alone.

Customer counts in Iowa reports

Of 10 reports naming only Iowa, 2 list customers, too few to rank. The other 9 name several states at once.

Reports listing customers, Iowa
BeganAreaTypeCustomersLengthMW
10 Aug 2020IowaSevere Weather250,000—1,400
22 Sep 2016Iowa: Black Hawk CountySystem Operations19,1240.8 h69

Longest Iowa reports

Longest reports by duration, Iowa
BeganAreaTypeCustomersLengthMW
26 Mar 2014IowaPhysical Attack—14.8 days—
11 Mar 2014Boone County, IowaSuspected Physical Attack—2.0 days—
27 Feb 2019IowaTransmission Interruption—6.2 h—
10 Aug 2020Iowa: Webster County, Greene County, Dallas County, Hamilton County, Boone County and moreSevere Weather—5.0 h550
14 Mar 2014Boone County, IowaPhysical Attack - Vandalism—4.2 h—

Latest Iowa reports on file

Latest reports on file, Iowa
BeganAreaTypeCustomersLengthMW
11 May 2022Iowa: Clinton CountyVandalism———
10 Sep 2021Iowa: Polk CountyVandalism———
10 Aug 2020Iowa: Webster County, Greene County, Dallas County, Hamilton County, Boone County and moreSevere Weather—5.0 h550
10 Aug 2020IowaSevere Weather250,000—1,400
27 Feb 2019IowaTransmission Interruption—6.2 h—
9 Nov 2018Iowa: Muscatine CountySystem Operations—1.4 h—
22 Sep 2016Iowa: Black Hawk CountySystem Operations19,1240.8 h69
26 Mar 2014IowaPhysical Attack—14.8 days—
14 Mar 2014Boone County, IowaPhysical Attack - Vandalism—4.2 h—
11 Mar 2014Boone County, IowaSuspected Physical Attack—2.0 days—

Download all 19 Iowa reports as CSV

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Sources

DOE OE-417 files hold 19 Iowa reports; snapshot 9 Dec 2024, method.

Questions

How many Iowa reports are in the DOE files?

Iowa appears in 19 reports, 45th among states and DC, and 9 of them also name a second state.

Which Iowa report lists the most customers?

In Iowa-only reports the top customer count is 250,000, a Severe Weather report that began 10 Aug 2020 (Iowa).

What are typical OE-417 reports in Iowa?

The top DOE type in Iowa is System Operations; equipment failures and system operations cover 42% of Iowa's reports.

Are outage reports in Iowa going up?

Iowa filed 5 in 2014 to 2018 and 14 in 2019 to 2023, a rise of 180%. The Iowa count may also reflect new filing habits.

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19 outage and emergency reports naming Iowa, 2014 to 2023