massoutage

County annual report · FIPS 19193

2015 Woodbury County, IA Power Outage Report

In 2015, customers in Woodbury County, IA went without power for an average of 0.6 hours, a total of 14K customer-hours (Iowa average 1.1 hours). That ranks 72nd worst of 99 Iowa counties and 2028th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
0.6
25,626 customers
Customer-hours out
14K
Peak customers out
2,379
Outages ≥1,000 out
2
0 of 10,000+ · 256 total
Longest outage
1d 3h
began August 17, 2015
Rank in state
72nd/99
2028th of 2,484 US

Compared with IA, the US

Woodbury County, IA average hours without power per customer compared with state and national averages, 2015Woodbury County 0.6 hours, Iowa average 1.1 hours, US average 2.9 hoursWoodbury CountyWoodbury County0.6hIowa averageIowa average1.1hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

CSVJSON
Woodbury County, IA customer-hours without power by month, 2015Jan 192, Feb 0, Mar 0, Apr 0, May 0, Jun 0, Jul 0, Aug 6,522, Sep 3,289, Oct 2,816, Nov 1,239, Dec 41802k4k6k8k192Jan0Feb0Mar0Apr0May0Jun0Jul6,522Aug3,289Sep2,816Oct1,239Nov418Dec
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Customer-hours; August was the worst month.

Woodbury County year over year

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Woodbury County, IA: average hours without power per customer by year2015: 0.6h; 2016: 8.1h; 2017: 2.1h; 2018: 2.1h, coverage 89%; 2019: 2.2h, coverage 89%; 2020: 3.4h, coverage 91%; 2021: 4.1h, coverage 91%; 2022: 2.4h, coverage 91%; 2023: 1.4h; 2024: 5.4h; 2025: 4.9h02.557.5100%50%100%0.6h20158.1h20162.1h20172.1h20182.2h20193.4h20204.1h20212.4h20221.4h20235.4h20244.9h2025
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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 Woodbury County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 11, 2015 19:30October 12, 2015 04:158h 45m2,3791,330
2August 17, 2015 00:15August 18, 2015 03:451d 3h1,1003,562
3August 18, 2015 06:15August 18, 2015 18:3012h 15m356782
4September 8, 2015 08:15September 8, 2015 12:454h 30m3171,043
5September 20, 2015 11:15September 20, 2015 22:1511h2081,013
6September 23, 2015 15:00September 23, 2015 16:001h188188
7November 11, 2015 17:00November 11, 2015 19:152h 15m16058
8August 10, 2015 03:15August 10, 2015 06:153h125127
9August 31, 2015 22:00August 31, 2015 23:151h 15m9494
10August 12, 2015 10:15August 12, 2015 13:153h92142

Outage episodes by size in 2015: 8 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 Woodbury 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
MidAmerican Energy Co20152.2 hrs1.0587 min0.88
Western Iowa Power Coop201536 min0.4836 min0.48
WAPA-- Western Area Power Administration-----
North West Rural Electric Coop-----
Woodbury County Rural E C A-----
City of Anthon - (IA)-----
City of Sergeant Bluff - (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 ÷ 25,626 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. Woodbury County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Woodbury 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/woodbury-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON