massoutage

2018 Colorado Power Outage Report

In 2018, the average Colorado customer went without power for about 1.6 hours — the 47th worst of any US state that year, below the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
1.6
Peak customers out
27,960
Rank (worst state)
47th
Counties affected
20

Colorado outages over the decade

Average hours without power per customer, 2018 highlighted.

1.2h20151.7h20161.5h20171.6h20183.3h20192.2h20202.8h20212.6h20222.1h20234.7h20244.6h2025

Hardest-hit Colorado counties in 2018

By peak customers out during the year's worst event.

1Denver County27,9602Arapahoe County24,1493Adams County12,3164Fremont County12,2285Archuleta County10,4666Jefferson County9,9527Weld County8,7668Eagle County8,5879Mesa County7,36110Boulder County7,35111La Plata County7,02212Summit County6,16913Pueblo County5,89214Larimer County5,83615Broomfield County5,24616Garfield County4,86317El Paso County4,33318Rio Grande County4,21019Conejos County4,02820Morgan County3,578

Biggest Colorado outages of 2018

CountyBeganPeak customers out
Denver CountyOctober 16, 201827,960
Denver CountyApril 16, 201825,179
Arapahoe CountyFebruary 8, 201824,149
Arapahoe CountyNovember 10, 201816,155
Denver CountySeptember 17, 201815,795
Denver CountyNovember 28, 201814,173
Adams CountyApril 17, 201812,316
Fremont CountySeptember 5, 201812,228
Archuleta CountySeptember 13, 201810,466
Adams CountyJuly 8, 201810,284
Colorado by year:20252024202320222021202020192017
Other states in 2018:NCVAWVMARIVT

Part of the 2018 US Power Outage Report. Source: DOE/ORNL EAGLE-I. “Avg hours per customer” is a SAIDI-like measure (outage customer-minutes ÷ tracked customers); coverage varies by year.