massoutage

County annual report · FIPS 08035

2018 Douglas County, CO Power Outage Report

In 2018, customers in Douglas County, CO went without power for an average of 0.6 hours, a total of 90K customer-hours (Colorado average 1.6 hours). That ranks 37th worst of 49 Colorado counties and 2476th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
0.6
157,251 customers
Customer-hours out
90K
Peak customers out
2,700
Outages ≥1,000 out
11
0 of 10,000+ · 681 total
Longest outage
5d 22h
began July 19, 2018
Rank in state
37th/49
2476th of 2,798 US

Compared with CO, the US and 2017

Douglas County, CO average hours without power per customer compared with state and national averages, 2018Douglas County 0.6 hours, Colorado average 1.6 hours, US average 5.6 hours, Douglas County, 2017 0.5 hoursDouglas CountyDouglas County0.6hColorado averageColorado average1.6hUS averageUS average5.6hDouglas County, 2017Douglas County, 20170.5h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Douglas County, CO customer-hours without power by month, 2018Jan 2,566, Feb 4,841, Mar 16K, Apr 6,423, May 6,252, Jun 13K, Jul 7,971, Aug 4,514, Sep 5,920, Oct 12K, Nov 6,492, Dec 3,36305k10k15k20k2,566Jan4,841Feb16KMar6,423Apr6,252May13KJun7,971Jul4,514Aug5,920Sep12KOct6,492Nov3,363Dec
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Customer-hours; March was the worst month.

Douglas County year over year

CSVJSON
Douglas County, CO: average hours without power per customer by year2015: 0.4h; 2016: 0.5h; 2017: 0.5h; 2018: 0.6h, coverage 88%; 2019: 1.5h, coverage 83%; 2020: 1.0h, coverage 84%; 2021: 0.9h, coverage 83%; 2022: 1.3h, coverage 84%; 2023: 1.1h; 2024: 2.4h; 2025: 1.1h01230%50%100%0.4h20150.5h20160.5h20170.6h20181.5h20191.0h20200.9h20211.3h20221.1h20232.4h20241.1h2025
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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 Douglas County, 2018

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 15, 2018 20:00June 16, 2018 06:0010h2,7006,639
2March 23, 2018 15:45March 24, 2018 00:459h2,4623,258
3January 10, 2018 20:30January 10, 2018 20:4515m2,451613
4October 4, 2018 20:15October 5, 2018 06:009h 45m2,2832,482
5February 1, 2018 18:30February 1, 2018 19:451h 15m1,7512,189
6August 8, 2018 14:30August 8, 2018 17:453h 15m1,6411,232
7October 10, 2018 08:15October 10, 2018 10:001h 45m1,5302,450
8July 7, 2018 20:15July 7, 2018 21:301h 15m1,2161,507
9February 28, 2018 16:15March 1, 2018 14:3022h 15m1,036842
10March 5, 2018 12:00March 6, 2018 00:3012h 30m1,0303,377

Outage episodes by size in 2018: 74 reached 100+ customers, 11 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 Douglas 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
CORE Electric Cooperative201889 min0.6676 min0.59
Mountain View Elec Assn, Inc201850 min0.5850 min0.58

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 ÷ 157,251 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. Douglas County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Douglas 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/douglas-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON