massoutage

County annual report · FIPS 49037

2017 San Juan County, UT Power Outage Report

In 2017, customers in San Juan County, UT went without power for an average of 4.2 hours, a total of 22K customer-hours (Utah average 1.0 hours). That ranks 4th worst of 26 Utah counties and 1072nd of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
4.2
5,137 customers
Customer-hours out
22K
Peak customers out
686
Outages ≥1,000 out
0
0 of 10,000+ · 38 total
Longest outage
22h
began October 31, 2017
Rank in state
4th/26
1072nd of 2,786 US

Compared with UT, the US

San Juan County, UT average hours without power per customer compared with state and national averages, 2017San Juan County 4.2 hours, Utah average 1.0 hours, US average 7.4 hoursSan Juan CountySan Juan County4.2hUtah averageUtah average1.0hUS averageUS average7.4h
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Average hours without power per customer in 2017.

Month by month

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San Juan County, UT customer-hours without power by month, 2017Jan 0, Feb 0, Mar 0, Apr 0, May 0, Jun 0, Jul 0, Aug 280, Sep 7, Oct 19K, Nov 2,763, Dec 7305k10k15k20k0Jan0Feb0Mar0Apr0May0Jun0Jul280Aug7Sep19KOct2,763Nov73Dec
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Customer-hours; October was the worst month.

San Juan County year over year

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San Juan County, UT: average hours without power per customer by year2015: no data; 2016: no data; 2017: 4.2h; 2018: 1.7h, coverage 80%; 2019: 1.7h, coverage 80%; 2020: 1.8h, coverage 79%; 2021: 1.4h, coverage 79%; 2022: 0.7h, coverage 80%; 2023: 1.8h; 2024: 2.1h; 2025: 3.8h02460%50%100%n/a2015n/a20164.2h20171.7h20181.7h20191.8h20201.4h20210.7h20221.8h20232.1h20243.8h2025
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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 San Juan County, 2017

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 31, 2017 13:15November 1, 2017 11:1522h6867,829
2August 23, 2017 16:00August 24, 2017 00:458h 45m682181
3October 12, 2017 16:30October 12, 2017 17:451h 15m577721
4October 17, 2017 13:00October 17, 2017 16:303h 30m5772,020
5October 18, 2017 14:15October 18, 2017 20:005h 45m5773,318
6October 26, 2017 13:15October 27, 2017 00:4511h 30m5656,498
7November 28, 2017 12:15November 28, 2017 14:152h347694
8December 21, 2017 23:15December 21, 2017 23:3015m21554
9November 9, 2017 15:15November 9, 2017 16:301h 15m162203
10November 18, 2017 02:30November 18, 2017 05:152h 45m69121

Outage episodes by size in 2017: 9 reached 100+ customers, 0 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 San Juan 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
Empire Electric Assn, Inc201784 min0.7284 min0.72
WAPA-- Western Area Power Administration-----
Navajo Tribal Utility Authority-----
City of Blanding - (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 ÷ 5,137 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. San Juan County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), San Juan 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/san-juan-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON