massoutage

County annual report · FIPS 08097

2015 Pitkin County, CO Power Outage Report

In 2015, customers in Pitkin County, CO went without power for an average of 11.6 hours, a total of 148K customer-hours (Colorado average 1.2 hours). That ranks 1st worst of 33 Colorado counties and 228th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
11.6
12,768 customers
Customer-hours out
148K
Peak customers out
3,708
Outages ≥1,000 out
9
0 of 10,000+ · 237 total
Longest outage
14d 22h
began October 1, 2015
Rank in state
1st/33
228th of 2,484 US

Compared with CO, the US

Pitkin County, CO average hours without power per customer compared with state and national averages, 2015Pitkin County 11.6 hours, Colorado average 1.2 hours, US average 2.9 hoursPitkin CountyPitkin County11.6hColorado averageColorado average1.2hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

CSVJSON
Pitkin County, CO customer-hours without power by month, 2015Jan 764, Feb 261, Mar 6,470, Apr 2,849, May 28K, Jun 86K, Jul 1,517, Aug 4,557, Sep 8,177, Oct 5,811, Nov 1,453, Dec 1,604025k50k75k100k764Jan261Feb6,470Mar2,849Apr28KMay86KJun1,517Jul4,557Aug8,177Sep5,811Oct1,453Nov1,604Dec
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Customer-hours; June was the worst month.

Pitkin County year over year

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Pitkin County, CO: average hours without power per customer by year2015: 11.6h; 2016: 9.0h; 2017: 0.2h; 2018: 1.2h, coverage 88%; 2019: 2.5h, coverage 83%; 2020: 5.2h, coverage 84%; 2021: 2.8h, coverage 83%; 2022: 2.2h, coverage 84%; 2023: 1.8h; 2024: 1.9h; 2025: 1.6h0510150%50%100%11.6h20159.0h20160.2h20171.2h20182.5h20195.2h20202.8h20212.2h20221.8h20231.9h20241.6h2025
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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 Pitkin County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 23, 2015 19:30June 26, 2015 01:302d 6h3,70864K
2June 22, 2015 18:30June 22, 2015 23:305h3,70612K
3May 5, 2015 15:00May 6, 2015 20:001d 5h2,81127K
4June 26, 2015 14:15June 26, 2015 19:455h 30m2,5167,286
5June 22, 2015 15:30June 22, 2015 16:1545m1,9821,309
6January 16, 2015 16:00January 22, 2015 00:305d 8h1,693562
7September 9, 2015 23:45September 14, 2015 16:004d 16h1,2877,189
8August 3, 2015 11:45August 4, 2015 17:451d 6h1,1662,202
9March 11, 2015 15:00March 11, 2015 20:305h 30m1,0943,839
10April 17, 2015 12:45April 17, 2015 21:008h 15m6362,256

Outage episodes by size in 2015: 28 reached 100+ customers, 9 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 Pitkin County reported on EIA Form 861 for 2015, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Public Service Co of Colorado20151.6 hrs0.9888 min0.95
Holy Cross Electric Assn, Inc201569 min0.8869 min0.88
Holy Cross Electric Assn, Inc,holycrossenergy-----
City of Aspen- (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 n/a of Colorado's customers in 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 12,768 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. Pitkin County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Pitkin County, CO annual power outage report, 2015, 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/2015/colorado/pitkin-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON