massoutage

County annual report · FIPS 19057

2023 Des Moines County, IA Power Outage Report

In 2023, customers in Des Moines County, IA went without power for an average of 5.1 hours, a total of 92K customer-hours (Iowa average 2.0 hours). That ranks 12th worst of 99 Iowa counties and 1465th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
5.1
18,207 customers
Customer-hours out
92K
Peak customers out
4,732
Outages ≥1,000 out
12
0 of 10,000+ · 505 total
Longest outage
17d 5h
began May 22, 2023
Rank in state
12th/99
1465th of 2,977 US

Compared with IA, the US and 2022

Des Moines County, IA average hours without power per customer compared with state and national averages, 2023Des Moines County 5.1 hours, Iowa average 2.0 hours, US average 7.1 hours, Des Moines County, 2022 1.4 hoursDes Moines CountyDes Moines County5.1hIowa averageIowa average2.0hUS averageUS average7.1hDes Moines County, 2022Des Moines County, 2…1.4h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

CSVJSON
Des Moines County, IA customer-hours without power by month, 2023Jan 557, Feb 951, Mar 4,550, Apr 26K, May 15K, Jun 3,399, Jul 8,057, Aug 11K, Sep 11K, Oct 2,004, Nov 4,083, Dec 5,113010k20k30k557Jan951Feb4,550Mar26KApr15KMay3,399Jun8,057Jul11KAug11KSep2,004Oct4,083Nov5,113Dec
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Customer-hours; April was the worst month.

Des Moines County year over year

CSVJSON
Des Moines County, IA: average hours without power per customer by year2015: 6.1h; 2016: 2.0h; 2017: 1.4h; 2018: 2.3h, coverage 89%; 2019: 3.3h, coverage 89%; 2020: 2.2h, coverage 91%; 2021: 2.1h, coverage 91%; 2022: 1.4h, coverage 91%; 2023: 5.1h; 2024: 9.7h; 2025: 3.1h02.557.5100%50%100%6.1h20152.0h20161.4h20172.3h20183.3h20192.2h20202.1h20211.4h20225.1h20239.7h20243.1h2025
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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 Des Moines County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 31, 2023 22:45April 3, 2023 00:002d 1h4,73224K
2September 16, 2023 21:30September 17, 2023 03:005h 30m3,6537,942
3July 5, 2023 01:00July 5, 2023 03:152h 15m3,3935,598
4May 8, 2023 00:15May 8, 2023 20:4520h 30m2,3904,903
5September 11, 2023 02:15September 11, 2023 05:002h 45m2,2372,396
6August 5, 2023 06:30August 5, 2023 18:4512h 15m2,1121,927
7August 23, 2023 06:15August 23, 2023 09:153h1,6044,386
8November 26, 2023 07:45November 26, 2023 13:456h1,6023,316
9July 28, 2023 07:45July 28, 2023 13:456h1,412711
10August 10, 2023 06:30August 10, 2023 08:302h1,3902,778

Outage episodes by size in 2023: 40 reached 100+ customers, 12 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 Des Moines County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Eastern Iowa Light & Power Coop20233.1 hrs1.231.7 hrs0.98
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----
Access Energy Coop-----
City of Danville - (IA)-----
New London Municipal Utilities-----

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 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 18,207 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. Des Moines County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Des Moines County, IA annual power outage report, 2023, 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/2023/iowa/des-moines-county

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