massoutage

County annual report · FIPS 19087

2015 Henry County, IA Power Outage Report

In 2015, customers in Henry County, IA went without power for an average of 4.3 hours, a total of 51K customer-hours (Iowa average 1.1 hours). That ranks 4th worst of 99 Iowa counties and 646th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
4.3
11,923 customers
Customer-hours out
51K
Peak customers out
2,287
Outages ≥1,000 out
4
0 of 10,000+ · 244 total
Longest outage
1d 19h
began June 21, 2015
Rank in state
4th/99
646th of 2,484 US

Compared with IA, the US

Henry County, IA average hours without power per customer compared with state and national averages, 2015Henry County 4.3 hours, Iowa average 1.1 hours, US average 2.9 hoursHenry CountyHenry County4.3hIowa averageIowa average1.1hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

CSVJSON
Henry County, IA customer-hours without power by month, 2015Jan 52, Feb 1,279, Mar 5,246, Apr 647, May 10, Jun 9,376, Jul 2,879, Aug 689, Sep 3,548, Oct 2,364, Nov 9,066, Dec 16K05k10k15k20k52Jan1,279Feb5,246Mar647Apr10May9,376Jun2,879Jul689Aug3,548Sep2,364Oct9,066Nov16KDec
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Customer-hours; December was the worst month.

Henry County year over year

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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, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 13, 2015 18:15December 13, 2015 19:301h 15m2,2872,120
2November 21, 2015 13:15November 22, 2015 08:1519h1,1871,898
3December 28, 2015 11:15December 30, 2015 04:151d 17h1,15614K
4March 30, 2015 10:00March 30, 2015 15:305h 30m1,0484,709
5November 11, 2015 23:45November 13, 2015 04:301d 4h9855,144
6September 7, 2015 09:00September 7, 2015 14:005h9682,808
7October 10, 2015 21:00October 10, 2015 23:002h8131,581
8June 6, 2015 04:30June 6, 2015 05:451h 15m779736
9June 25, 2015 05:15June 25, 2015 17:1512h7262,847
10September 9, 2015 14:00September 9, 2015 16:152h 15m709179

Outage episodes by size in 2015: 24 reached 100+ customers, 4 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 2015, 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 Coop20152.2 hrs1.501.7 hrs1.25
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 2015; 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, 2015, 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/2015/iowa/henry-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON