massoutage

2015 Colorado Power Outage Report

In 2015, the average Colorado customer went without power for about 1.2 hours, the 40th worst of 49 states (US average 2.8 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer
1.2
vs prior year
-
no earlier year loaded
Customer-hours out
3.2M
Peak customers out
21,215
across the state at once
EAGLE-I coverage
n/a
of CO customers
Counties reporting
33

Colorado year over year

Colorado: average hours without power per customer by year2015: 1.2h; 2016: 1.7h; 2017: 1.5h; 2018: 1.6h, coverage 88%; 2019: 3.2h, coverage 83%; 2020: 2.2h, coverage 84%; 2021: 2.8h, coverage 83%; 2022: 2.6h, coverage 84%; 2023: 2.1h; 2024: 4.7h; 2025: 4.5h02460%50%100%1.2h20151.7h20161.5h20171.6h20183.2h20192.2h20202.8h20212.6h20222.1h20234.7h20244.5h2025
Use the arrow keys to read values.
Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Month by month, 2015

Customer-hours without power across Colorado; June was the worst.

CSVJSON
Colorado customer-hours without power by month, 2015Jan 38K, Feb 21K, Mar 43K, Apr 79K, May 361K, Jun 741K, Jul 289K, Aug 392K, Sep 297K, Oct 355K, Nov 400K, Dec 162K0200k400k600k800k38KJan21KFeb43KMar79KApr361KMay741KJun289KJul392KAug297KSep355KOct400KNov162KDec
Use the arrow keys to read values.

All 33 Colorado counties, 2015

Ranked by average hours without power per customer. Each county links to its annual report.

CSVJSON
#CountyHrs / customerCustomer-hoursCustomersPeak outEvents
1Pitkin County11.6148K12,7683,708237
2Park County8.350K6,0162,259105
3Eagle County6.6285K43,4296,343258
4Summit County4.166K16,13110,902230
5Custer County3.510K2,9301,44422
6Crowley County2.86,7892,4081,83122
7Otero County2.711K4,2063,32537
8Weld County1.9231K122,32310,675534
9Conejos County1.97,1123,7931,223142
10Garfield County1.554K34,9042,553287
11Clear Creek County1.45,5003,877418100
12Jefferson County1.4382K278,20712,136554
13Logan County1.49,1746,7071,546139
14Arapahoe County1.3434K323,1138,396530
15Denver County1.3515K398,8989,377387
16Larimer County1.1176K154,6807,267690
17Adams County1.1271K243,03610,308619
18Boulder County1.0172K166,6137,716585
19Pueblo County1.053K52,2268,266200
20Costilla County1.02,1292,08945459
21Morgan County0.812K14,5011,71186
22Gilpin County0.82,0872,62674525
23Broomfield County0.827K36,1824,779191
24Gunnison County0.57,98614,72925430
25Fremont County0.48,13819,0182,461132
26Mesa County0.433K78,5423,254420
27Douglas County0.466K157,2512,608338
28Saguache County0.41,2923,26049633
29Alamosa County0.43,4879,288260134
30El Paso County0.3120K361,6788,272665
31Teller County0.32,8229,3071,96643
32Rio Grande County0.31,9267,55525584
33Chaffee County0.22,42512,3411,05594

Biggest Colorado outages of 2015

Up to 25 county outage episodes with the most customers out at once.

CSVJSON
#CountyStarted (UTC)Ended (UTC)DurationPeak outCustomer-hours
1Jefferson County, COMay 23, 2015 15:30May 23, 2015 20:004h 30m12,1367,416
2Jefferson County, COMay 23, 2015 21:30May 24, 2015 12:3015h12,09221K
3Summit County, COSeptember 19, 2015 07:30September 19, 2015 08:0030m10,9024,373
4Weld County, COJune 26, 2015 13:00June 26, 2015 21:458h 45m10,67527K
5Jefferson County, COAugust 29, 2015 02:45August 30, 2015 14:001d 11h10,57815K
6Jefferson County, COMay 20, 2015 13:15May 20, 2015 19:156h10,3485,278
7Adams County, COJuly 19, 2015 13:45July 19, 2015 14:451h10,3085,166
8Adams County, COJuly 15, 2015 17:15July 15, 2015 23:005h 45m10,2682,591
9Denver County, COJune 4, 2015 23:45June 6, 2015 14:451d 15h9,37766K
10Denver County, COJuly 13, 2015 20:00July 15, 2015 12:451d 16h8,5344,982
11Arapahoe County, COJune 19, 2015 21:15June 19, 2015 22:0045m8,3966,292
12Arapahoe County, COJune 20, 2015 00:00June 20, 2015 10:1510h 15m8,3729,684
13El Paso County, COJuly 27, 2015 01:15July 27, 2015 09:458h 30m8,2722,131
14Pueblo County, COJune 22, 2015 16:45June 25, 2015 05:002d 12h8,26617K
15Denver County, COAugust 10, 2015 20:00August 17, 2015 21:157d 1h8,13031K
16Denver County, CONovember 6, 2015 12:00November 7, 2015 09:0021h7,8988,706
17Weld County, COJune 2, 2015 19:00June 4, 2015 22:152d 3h7,72614K
18Boulder County, COOctober 12, 2015 03:15October 12, 2015 15:3012h 15m7,71617K
19Denver County, COJuly 28, 2015 21:30July 29, 2015 17:1519h 45m7,28214K
20Larimer County, CONovember 8, 2015 05:15November 9, 2015 14:001d 8h7,26773K
21Jefferson County, CONovember 7, 2015 03:15November 7, 2015 06:303h 15m7,2127,214
22Arapahoe County, COAugust 3, 2015 04:30August 4, 2015 17:451d 13h6,93917K
23Jefferson County, COAugust 3, 2015 04:45August 4, 2015 05:151d6,49813K
24Adams County, COJuly 27, 2015 18:15July 28, 2015 13:1519h6,43917K
25Eagle County, CODecember 14, 2015 09:45December 14, 2015 11:151h 30m6,3438,780
EAGLE-I tracked about n/a of Colorado's electricity customers in 2015; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
Colorado by year:2025202420232022202120202019201820172016
Other states in 2015:WVWAMINCRILAOKNJ

Part of the 2015 US Power Outage Report.

Data from DOE EAGLE-I, every source we read.