massoutage

County annual report · FIPS 49053

2017 Washington County, UT Power Outage Report

In 2017, customers in Washington County, UT went without power for an average of 0.5 hours, a total of 42K customer-hours (Utah average 1.0 hours). That ranks 22nd worst of 26 Utah counties and 2273rd of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
0.5
78,883 customers
Customer-hours out
42K
Peak customers out
10,116
Outages ≥1,000 out
4
1 of 10,000+ · 137 total
Longest outage
15h 15m
began December 5, 2017
Rank in state
22nd/26
2273rd of 2,786 US

Compared with UT, the US

Washington County, UT average hours without power per customer compared with state and national averages, 2017Washington County 0.5 hours, Utah average 1.0 hours, US average 7.4 hoursWashington CountyWashington County0.5hUtah averageUtah average1.0hUS averageUS average7.4h
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Average hours without power per customer in 2017.

Month by month

CSVJSON
Washington County, UT customer-hours without power by month, 2017Jan 0, Feb 0, Mar 0, Apr 0, May 0, Jun 0, Jul 0, Aug 5,308, Sep 26K, Oct 3,360, Nov 1,259, Dec 6,530010k20k30k0Jan0Feb0Mar0Apr0May0Jun0Jul5,308Aug26KSep3,360Oct1,259Nov6,530Dec
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Customer-hours; September was the worst month.

Washington County year over year

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Washington County, UT: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.5h; 2018: 1.5h, coverage 80%; 2019: 0.9h, coverage 80%; 2020: 1.2h, coverage 79%; 2021: 0.8h, coverage 79%; 2022: 0.8h, coverage 80%; 2023: 1.2h; 2024: 1.8h; 2025: 2.3h01230%50%100%n/a2015n/a20160.5h20171.5h20180.9h20191.2h20200.8h20210.8h20221.2h20231.8h20242.3h2025
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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 Utah 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
1August 31, 2017 17:15August 31, 2017 17:4530m10,1162,580
2September 5, 2017 04:00September 5, 2017 09:005h5,50423K
3August 3, 2017 23:45August 4, 2017 06:006h 15m1,5931,569
4December 26, 2017 04:15December 26, 2017 13:159h1,4003,038
5December 4, 2017 07:15December 4, 2017 10:002h 45m8972,243
6October 31, 2017 16:45October 31, 2017 22:305h 45m361774
7October 30, 2017 22:15October 31, 2017 06:308h 15m3601,537
8August 19, 2017 01:00August 19, 2017 02:151h 15m358447
9September 14, 2017 11:15September 14, 2017 17:005h 45m307519
10December 21, 2017 05:00December 21, 2017 15:0010h277649

Outage episodes by size in 2017: 15 reached 100+ customers, 4 reached 1,000+ customers, 1 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
PacifiCorp20175.2 hrs2.012.4 hrs1.43
Garkane Energy Coop, Inc20175.4 hrs-4.4 hrs-
Dixie Escalante R E A, Inc201775 min0.4032 min0.38
City of St George20174.5 hrs-31 min-
Hurricane City Power20172.9 hrs1.599 min0.41
City of Enterprise - (UT)-----
City of Santa Clara - (UT)-----
City of Washington - (UT)-----

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 Utah's customers in 2017; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 78,883 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 2017–2025.

Cite this report

MassOutage (massoutage.com), Washington County, UT 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/utah/washington-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON