massoutage

County annual report · FIPS 08111

2018 San Juan County, CO Power Outage Report

In 2018, customers in San Juan County, CO went without power for an average of 0.5 hours, a total of 295 customer-hours (Colorado average 1.6 hours). That ranks 38th worst of 49 Colorado counties and 2486th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
0.5
549 customers
Customer-hours out
295
Peak customers out
23
Outages ≥1,000 out
0
0 of 10,000+ · 10 total
Longest outage
6h 45m
began April 20, 2018
Rank in state
38th/49
2486th of 2,798 US

Compared with CO, the US and 2017

San Juan County, CO average hours without power per customer compared with state and national averages, 2018San Juan County 0.5 hours, Colorado average 1.6 hours, US average 5.6 hours, San Juan County, 2017 1.2 hoursSan Juan CountySan Juan County0.5hColorado averageColorado average1.6hUS averageUS average5.6hSan Juan County, 2017San Juan County, 20171.2h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

CSVJSON
San Juan County, CO customer-hours without power by month, 2018Jan 0, Feb 0, Mar 0, Apr 181, May 1, Jun 0, Jul 111, Aug 0, Sep 0, Oct 1, Nov 0, Dec 00501001502000Jan0Feb0Mar181Apr1May0Jun111Jul0Aug0Sep1Oct0Nov0Dec
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Customer-hours; April was the worst month.

San Juan County year over year

CSVJSON
San Juan County, CO: average hours without power per customer by year2015: no data; 2016: 0.0h; 2017: 1.2h; 2018: 0.5h, coverage 88%; 2019: 7.2h, coverage 83%; 2020: 5.4h, coverage 84%; 2021: 6.3h, coverage 83%; 2022: 3.4h, coverage 84%; 2023: 3.0h; 2024: 2.3h; 2025: no data024680%50%100%n/a20150.0h20161.2h20170.5h20187.2h20195.4h20206.3h20213.4h20223.0h20232.3h2024n/a2025
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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 Colorado customers tracked each year.

Biggest outages in San Juan County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 12, 2018 22:00April 13, 2018 02:154h 15m2398
2April 20, 2018 01:00April 20, 2018 07:456h 45m2383
3July 24, 2018 04:30July 24, 2018 08:304h2392
4July 17, 2018 18:30July 17, 2018 20:151h 45m1419
5May 10, 2018 15:45May 10, 2018 16:0015m21
6May 10, 2018 17:30May 10, 2018 17:4515m21
7February 15, 2018 19:30February 15, 2018 19:4515m10
8October 10, 2018 21:00October 10, 2018 21:1515m10
9October 30, 2018 18:00October 30, 2018 18:1515m10
10October 30, 2018 19:15October 30, 2018 20:151h11

Outage episodes by size in 2018: 0 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 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
La Plata Electric Assn, Inc20182.3 hrs1.681.7 hrs1.34
San Miguel Power Assn, Inc-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 88% of Colorado's customers in 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 549 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 2016–2024.

Cite this report

MassOutage (massoutage.com), San Juan County, CO annual power outage report, 2018, 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/2018/colorado/san-juan-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON