massoutage

County annual report · FIPS 08045

2018 Garfield County, CO Power Outage Report

In 2018, customers in Garfield County, CO went without power for an average of 2.3 hours, a total of 80K customer-hours (Colorado average 1.6 hours). That ranks 14th worst of 49 Colorado counties and 1734th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
2.3
34,904 customers
Customer-hours out
80K
Peak customers out
4,863
Outages ≥1,000 out
8
0 of 10,000+ · 507 total
Longest outage
3d 22h
began May 11, 2018
Rank in state
14th/49
1734th of 2,798 US

Compared with CO, the US and 2017

Garfield County, CO average hours without power per customer compared with state and national averages, 2018Garfield County 2.3 hours, Colorado average 1.6 hours, US average 5.6 hours, Garfield County, 2017 3.8 hoursGarfield CountyGarfield County2.3hColorado averageColorado average1.6hUS averageUS average5.6hGarfield County, 2017Garfield County, 20173.8h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

CSVJSON
Garfield County, CO customer-hours without power by month, 2018Jan 3,082, Feb 11K, Mar 10K, Apr 17K, May 7,834, Jun 9,246, Jul 11K, Aug 1,354, Sep 2,003, Oct 6,417, Nov 371, Dec 43905k10k15k20k3,082Jan11KFeb10KMar17KApr7,834May9,246Jun11KJul1,354Aug2,003Sep6,417Oct371Nov439Dec
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Customer-hours; April was the worst month.

Garfield County year over year

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Garfield County, CO: average hours without power per customer by year2015: 1.5h; 2016: 2.3h; 2017: 3.8h; 2018: 2.3h, coverage 88%; 2019: 2.3h, coverage 83%; 2020: 3.0h, coverage 84%; 2021: 3.2h, coverage 83%; 2022: 1.6h, coverage 84%; 2023: 3.4h; 2024: 3.7h; 2025: 3.8h012340%50%100%1.5h20152.3h20163.8h20172.3h20182.3h20193.0h20203.2h20211.6h20223.4h20233.7h20243.8h2025
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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 Colorado customers tracked each year.

Biggest outages in Garfield 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 17, 2018 02:45April 17, 2018 05:302h 45m4,86311K
2February 27, 2018 13:30February 27, 2018 17:003h 30m1,827600
3July 7, 2018 02:15July 7, 2018 08:456h 30m1,774830
4April 6, 2018 17:00April 6, 2018 17:3030m1,771451
5March 18, 2018 16:00March 18, 2018 20:304h 30m1,7707,523
6May 20, 2018 11:15May 20, 2018 14:002h 45m1,4763,789
7May 28, 2018 09:15May 28, 2018 10:301h 15m1,4591,824
8October 11, 2018 14:15October 12, 2018 02:0011h 45m1,0122,359
9July 17, 2018 19:30July 18, 2018 01:005h 30m8912,271
10June 28, 2018 21:30June 29, 2018 01:454h 15m869439

Outage episodes by size in 2018: 42 reached 100+ customers, 8 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 Garfield 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
Public Service Co of Colorado20181.9 hrs1.021.6 hrs0.98
Holy Cross Electric Assn, Inc20181.6 hrs1.4775 min1.10
Grand Valley Power201879 min-79 min-
WAPA-- Western Area Power Administration-----
Moon Lake Electric Assn Inc-----
Holy Cross Electric Assn, Inc,holycrossenergy-----
White River Electric Assn, Inc-----
City of Glenwood Springs - (CO)-----

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 ÷ 34,904 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. Garfield County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Garfield 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/garfield-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON