massoutage

County annual report · FIPS 08043

2015 Fremont County, CO Power Outage Report

In 2015, customers in Fremont County, CO went without power for an average of 0.4 hours, a total of 8,138 customer-hours (Colorado average 1.2 hours). That ranks 25th worst of 33 Colorado counties and 2111th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
0.4
19,018 customers
Customer-hours out
8,138
Peak customers out
2,461
Outages ≥1,000 out
3
0 of 10,000+ · 132 total
Longest outage
7d 7h
began September 28, 2015
Rank in state
25th/33
2111th of 2,484 US

Compared with CO, the US

Fremont County, CO average hours without power per customer compared with state and national averages, 2015Fremont County 0.4 hours, Colorado average 1.2 hours, US average 2.9 hoursFremont CountyFremont County0.4hColorado averageColorado average1.2hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Fremont County, CO customer-hours without power by month, 2015Jan 0, Feb 0, Mar 0, Apr 0, May 0, Jun 102, Jul 1,395, Aug 1,676, Sep 189, Oct 291, Nov 1,814, Dec 2,67301k2k3k0Jan0Feb0Mar0Apr0May102Jun1,395Jul1,676Aug189Sep291Oct1,814Nov2,673Dec
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Customer-hours; December was the worst month.

Fremont County year over year

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Fremont County, CO: average hours without power per customer by year2015: 0.4h; 2016: 0.6h; 2017: 2.0h; 2018: 2.2h, coverage 88%; 2019: 1.0h, coverage 83%; 2020: 0.8h, coverage 84%; 2021: 1.7h, coverage 83%; 2022: 4.5h, coverage 84%; 2023: 2.7h; 2024: 0.8h; 2025: 1.6h02460%50%100%0.4h20150.6h20162.0h20172.2h20181.0h20190.8h20201.7h20214.5h20222.7h20230.8h20241.6h2025
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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 Fremont County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 17, 2015 22:30August 17, 2015 22:4515m2,461615
2December 29, 2015 23:30December 30, 2015 02:152h 45m2,0342,194
3July 22, 2015 21:15July 22, 2015 22:0045m1,101826
4August 14, 2015 17:00August 17, 2015 13:302d 20h774686
5July 21, 2015 09:45July 21, 2015 11:151h 30m770344
6August 21, 2015 23:45August 22, 2015 02:002h 15m445117
7November 27, 2015 14:45November 27, 2015 21:306h 45m2781,274
8November 30, 2015 01:30November 30, 2015 03:151h 45m185324
9July 2, 2015 02:15July 2, 2015 03:151h15044
10September 1, 2015 00:00September 1, 2015 00:3030m12864

Outage episodes by size in 2015: 12 reached 100+ customers, 3 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 Fremont County reported on EIA Form 861 for 2015, 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 Colorado20151.6 hrs0.9888 min0.95
CORE Electric Cooperative20154.5 hrs1.161.9 hrs1.04
Black Hills Colorado Electric, LLC20151.9 hrs1.9582 min1.26
Sangre De Cristo Elec Assn Inc20156.0 hrs1.604.4 hrs1.34
WAPA-- Western Area Power Administration-----
San Isabel Electric Assn, Inc-----
Black Hills Energy-----

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 ÷ 19,018 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. Fremont County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Fremont 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/fremont-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON