– 0 customers out in Colorado

Power outage history

Colorado

2.9hours

without power for the average customer in a typical year, 2018–2025. 42nd of 51.

Largest outage on record Windstorm, April 6, 2024 184,972 customers out · 7% of the state
Electricity customers 2,814,577 Across 64 counties
Worst well-recorded year 2024 4.6 hours without power, average customer

County by county

Where Colorado goes dark

Hours without power for the average customer in a typical year. Hover a county; click to open it.

Fewer hours64+ h / yr

Year by year

Hours in the dark, statewide

0 2 4 6 8 ’15 ’16 ’17 1.5 ’18 3.1 ’19 2.2 ’20 2.7 ’21 2.6 ’22 2.0 ’23 4.6 ’24 4.4 ’25 US 6.6

The record

Colorado's largest outages

Statewide events with at least 2% of customers, or 25,000, out at once, by peak.

BeganStormPeak outShare
Apr 6, 2024 Windstorm 184,972 6.6%
Mar 13, 2019 Winter storm 162,960 5.8%
Mar 23, 2016 Winter storm 147,186 5.2%
May 21, 2022 Winter storm 136,669 4.9%
Dec 17, 2025 Windstorm 134,779 4.8%
Dec 15, 2021 Windstorm 134,649 4.8%
Jun 6, 2020 Thunderstorms 102,670 3.6%
Dec 19, 2025 Windstorm 100,484 3.6%
Mar 14, 2021 Winter storm 60,383 2.1%

Every county

All 64 counties

CountyHours / yrMajor outages since 2018Customers
Jackson 65 44 704
Clear Creek 31 166 3,877
Park 23 74 6,016
Conejos 20 91 3,793
Cheyenne 14 66 1,412
Kit Carson 12 26 3,818
Costilla 10 45 2,089
Summit 9.8 64 16,131
Archuleta 8.0 33 8,482
Gilpin 7.9 45 2,626
Teller 5.9 31 9,307
Jefferson 5.8 5 278,207
Grand 5.5 3 8,019
Boulder 5.3 5 166,613
Lake 5.2 46 3,471
Logan 4.9 29 6,707
Weld 3.8 4 122,323
La Plata 3.5 14 36,986
Rio Grande 3.4 18 7,555
Delta 3.4 17 11,874
Saguache 3.3 12 3,260
Elbert 3.3 32 10,107
Chaffee 3.2 39 12,341
Routt 3.2 2 18,528
Denver 3.0 2 398,898

Who keeps the lights on

Utilities in Colorado

Reliability and residential price as reported to the EIA for the latest year. Outage minutes include major storm days.

UtilityTypeOutage min / yrExcl. major storms¢/kWhCustomers
Public Service Co of Colorado Investor Owned 360 149 15.9 1.4M
City of Colorado Springs Municipal 41 41 15.4 220k
CORE Electric Cooperative Cooperative 381 52 15.6 169k
United Power, Inc Cooperative 303 90 16.5 103k
Black Hills Colorado Electric, LLC Investor Owned 95 95 18.7 98k
City of Fort Collins Municipal 8 8 14.3 72k
Mountain View Elec Assn, Inc Cooperative 130 30 15.7 61k
Poudre Valley REA, Inc Cooperative 151 49 12.5 51k
Holy Cross Electric Assn, Inc Cooperative 71 71 12.4 50k
City of Longmont Municipal 40 40 13.1 41k
La Plata Electric Assn, Inc Cooperative 218 67 18.3 40k
City of Loveland Municipal 27 27 15.3 37k
Delta Montrose Electric Assn Cooperative 116 116 14.9 33k
Yampa Valley Electric Assn Inc Cooperative 272 189 17.0 24k
San Isabel Electric Assn, Inc Cooperative 87 87 18.9 23k