massoutage

County annual report · FIPS 19183

2017 Washington County, IA Power Outage Report

In 2017, customers in Washington County, IA went without power for an average of 1.8 hours, a total of 17K customer-hours (Iowa average 2.0 hours). That ranks 51st worst of 99 Iowa counties and 1724th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
1.8
9,700 customers
Customer-hours out
17K
Peak customers out
1,180
Outages ≥1,000 out
2
0 of 10,000+ · 262 total
Longest outage
20h 45m
began December 7, 2017
Rank in state
51st/99
1724th of 2,786 US

Compared with IA, the US and 2016

Washington County, IA average hours without power per customer compared with state and national averages, 2017Washington County 1.8 hours, Iowa average 2.0 hours, US average 7.4 hours, Washington County, 2016 2.3 hoursWashington CountyWashington County1.8hIowa averageIowa average2.0hUS averageUS average7.4hWashington County, 2016Washington County, 2…2.3h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

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Washington County, IA customer-hours without power by month, 2017Jan 73, Feb 1,969, Mar 2,172, Apr 289, May 1,363, Jun 1,830, Jul 1,752, Aug 988, Sep 648, Oct 328, Nov 4,946, Dec 64002k4k6k73Jan1,969Feb2,172Mar289Apr1,363May1,830Jun1,752Jul988Aug648Sep328Oct4,946Nov640Dec
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Customer-hours; November was the worst month.

Washington County year over year

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Washington County, IA: average hours without power per customer by year2015: 3.3h; 2016: 2.3h; 2017: 1.8h; 2018: 6.8h, coverage 89%; 2019: 3.7h, coverage 89%; 2020: 13.5h, coverage 91%; 2021: 3.9h, coverage 91%; 2022: 1.5h, coverage 91%; 2023: 3.2h; 2024: 8.2h; 2025: 2.1h0510150%50%100%3.3h20152.3h20161.8h20176.8h20183.7h201913.5h20203.9h20211.5h20223.2h20238.2h20242.1h2025
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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 Washington County, 2017

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 27, 2017 13:15July 27, 2017 16:303h 15m1,180612
2November 17, 2017 04:30November 17, 2017 08:003h 30m1,0683,490
3February 3, 2017 05:15February 3, 2017 06:451h 30m9961,494
4April 1, 2017 08:45April 1, 2017 09:0015m830208
5March 27, 2017 13:15March 27, 2017 15:001h 45m823574
6November 22, 2017 04:30November 22, 2017 06:001h 30m7751,163
7September 21, 2017 10:45September 21, 2017 17:457h468206
8February 17, 2017 14:45February 17, 2017 15:451h355296
9March 7, 2017 03:45March 7, 2017 18:3014h 45m3101,369
10June 29, 2017 02:15June 29, 2017 13:4511h 30m291720

Outage episodes by size in 2017: 24 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 Washington County reported on EIA Form 861 for 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
MidAmerican Energy Co20171.9 hrs1.001.6 hrs0.91
Eastern Iowa Light & Power Coop20171.9 hrs1.0688 min0.92
T I P Rural Electric Coop20172.8 hrs2.312.8 hrs2.31
Farmers Electric Coop - (IA)201710 min0.4110 min0.41
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----
Access Energy Coop-----
Waverly Municipal Elec Utility-----

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 2017; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 9,700 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. Washington County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Washington County, IA annual power outage report, 2017, 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/2017/iowa/washington-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON