massoutage

County annual report · FIPS 19127

2015 Marshall County, IA Power Outage Report

In 2015, customers in Marshall County, IA went without power for an average of 2.1 hours, a total of 33K customer-hours (Iowa average 1.1 hours). That ranks 20th worst of 99 Iowa counties and 1209th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
2.1
15,945 customers
Customer-hours out
33K
Peak customers out
4,058
Outages ≥1,000 out
7
0 of 10,000+ · 315 total
Longest outage
14h
began February 1, 2015
Rank in state
20th/99
1209th of 2,484 US

Compared with IA, the US

Marshall County, IA average hours without power per customer compared with state and national averages, 2015Marshall County 2.1 hours, Iowa average 1.1 hours, US average 2.9 hoursMarshall CountyMarshall County2.1hIowa averageIowa average1.1hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Marshall County, IA customer-hours without power by month, 2015Jan 1,700, Feb 6,477, Mar 1,243, Apr 1,203, May 219, Jun 1,855, Jul 3,418, Aug 2,063, Sep 4,736, Oct 4,525, Nov 5,435, Dec 12002k4k6k8k1,700Jan6,477Feb1,243Mar1,203Apr219May1,855Jun3,418Jul2,063Aug4,736Sep4,525Oct5,435Nov120Dec
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Customer-hours; February was the worst month.

Marshall County year over year

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Marshall County, IA: average hours without power per customer by year2015: 2.1h; 2016: 3.4h; 2017: 3.9h; 2018: 33.8h, coverage 89%; 2019: 3.7h, coverage 89%; 2020: 143.9h, coverage 91%; 2021: 1.6h, coverage 91%; 2022: 1.7h, coverage 91%; 2023: 1.5h; 2024: 3.3h; 2025: 5.2h0501001500%50%100%2.1h20153.4h20163.9h201733.8h20183.7h2019143.9h20201.6h20211.7h20221.5h20233.3h20245.2h2025
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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 Marshall County, 2015

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 29, 2015 03:30October 29, 2015 05:452h 15m4,0584,085
2November 11, 2015 22:30November 12, 2015 03:455h 15m2,4001,983
3February 1, 2015 08:15February 1, 2015 22:1514h1,7665,663
4April 6, 2015 10:15April 6, 2015 11:0045m1,562728
5August 19, 2015 01:15August 19, 2015 04:002h 45m1,5411,675
6July 13, 2015 22:00July 14, 2015 00:002h1,5381,383
7April 10, 2015 10:15April 10, 2015 10:3015m1,169292
8September 15, 2015 09:45September 15, 2015 14:154h 30m8872,427
9January 17, 2015 18:45January 17, 2015 19:3045m853640
10November 24, 2015 05:15November 24, 2015 07:001h 45m8431,054

Outage episodes by size in 2015: 31 reached 100+ customers, 7 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 Marshall County reported on EIA Form 861 for 2015, or their most recent earlier filing. Utility-wide figures, not county-specific.

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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 ÷ 15,945 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. Marshall County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Marshall 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/). https://massoutage.com/reports/2015/iowa/marshall-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON