massoutage

County annual report · FIPS 19087

2023 Henry County, IA Power Outage Report

In 2023, customers in Henry County, IA went without power for an average of 2.2 hours, a total of 26K customer-hours (Iowa average 2.0 hours). That ranks 38th worst of 99 Iowa counties and 2222nd of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
2.2
11,923 customers
Customer-hours out
26K
Peak customers out
1,147
Outages ≥1,000 out
2
0 of 10,000+ · 323 total
Longest outage
2d
began August 26, 2023
Rank in state
38th/99
2222nd of 2,977 US

Compared with IA, the US and 2022

Henry County, IA average hours without power per customer compared with state and national averages, 2023Henry County 2.2 hours, Iowa average 2.0 hours, US average 7.1 hours, Henry County, 2022 0.8 hoursHenry CountyHenry County2.2hIowa averageIowa average2.0hUS averageUS average7.1hHenry County, 2022Henry County, 20220.8h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

CSVJSON
Henry County, IA customer-hours without power by month, 2023Jan 384, Feb 231, Mar 418, Apr 5,598, May 4,330, Jun 1,230, Jul 622, Aug 4,032, Sep 167, Oct 6,286, Nov 189, Dec 2,50202k4k6k8k384Jan231Feb418Mar5,598Apr4,330May1,230Jun622Jul4,032Aug167Sep6,286Oct189Nov2,502Dec
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Customer-hours; October was the worst month.

Henry County year over year

CSVJSON
Henry County, IA: average hours without power per customer by year2015: 4.3h; 2016: 4.3h; 2017: 3.4h; 2018: 1.8h, coverage 89%; 2019: 3.1h, coverage 89%; 2020: 2.0h, coverage 91%; 2021: 1.7h, coverage 91%; 2022: 0.8h, coverage 91%; 2023: 2.2h; 2024: 3.3h; 2025: 0.5h02460%50%100%4.3h20154.3h20163.4h20171.8h20183.1h20192.0h20201.7h20210.8h20222.2h20233.3h20240.5h2025
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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 Henry County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 31, 2023 16:45October 31, 2023 17:451h1,147861
2October 13, 2023 05:45October 13, 2023 10:154h 30m1,1435,105
3May 7, 2023 23:30May 9, 2023 01:301d 2h9653,096
4March 31, 2023 22:45April 2, 2023 05:451d 7h8273,441
5May 31, 2023 23:15June 1, 2023 01:452h 30m589885
6April 20, 2023 22:45April 21, 2023 05:457h514851
7April 2, 2023 17:45April 3, 2023 04:3010h 45m5111,160
8May 22, 2023 19:15May 22, 2023 19:3015m510128
9December 23, 2023 06:15December 23, 2023 11:155h3571,784
10August 17, 2023 06:30August 17, 2023 08:151h 45m311544

Outage episodes by size in 2023: 18 reached 100+ customers, 2 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 Henry 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-----
Access Energy Coop-----
City of Danville - (IA)-----
New London Municipal Utilities-----
City of Mt Pleasant - (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 n/a of Iowa's customers in 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 11,923 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. Henry County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Henry 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/henry-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON