Denver County, Colorado Power Outages, 2015 to 2023

Denver County, Colorado had 13 major outages from 2015 to 2023

Below middle outage time among US counties

Residents here averaged 0.48 times the US outage time per person and 1.45 times the Colorado rate. It ranks 11 of 44 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

1.4major outages per year

9 of 9years with a major outage

78 hrslongest major outage

Mar, Junhardest months

March and June made up 40% of this county's outage time. The largest outage on record began Mar 13, 2019, reached 61,512 customers, and left at least 200 customers out for 77.5 hours.

Outage time per resident, rated Colorado counties

MostLeast

Outage impact by year

Customer-hours without power. 1,000 customers out for 2 hours is 2,000 customer-hours.

2015'152016'162017'172018'182019'192020'202021'212022'222023'23

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	400,832	266	1
2016	540,464	168	2
2017	453,542	228	1
2018	802,874	324	1
2019	2,097,392	280	1
2020	934,885	306	2
2021	823,290	319	2
2022	970,046	257	1
2023	700,831	409	2

When outages hit

Share of this county's customer-hours by month.

10%

20%

30%

40%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Mar 13, 2019	77.5	61,512	1,462,590
May 21, 2022	61.5	32,049	447,034
Jun 6, 2020	68.2	40,714	409,532
Mar 23, 2016	45.8	21,787	266,701
Apr 17, 2018	38.2	25,179	213,739

Hours measure how long at least 200 customers in the county were out. Most customers get power back sooner.

Size your backup battery

Start with what you would keep running. Wattages are typical averages, so check your own appliances.

Phones, Wi-Fi, lights, about 60 WRefrigerator, about 60 WChest freezer, about 40 WGas furnace fan, about 160 W

Hours to cover: 24

1,700 Whof battery capacity, allowing for about 15% conversion loss

If anyone relies on medical equipment, plan that with their provider. Run portable fuel generators outdoors only, at least 20 feet from doors, windows and vents. See the outage checklist.

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How to read this

A major outage lasted at least 8 hours and reached customers equal to at least 1% of county residents.
Records cover outages of at least 200 customers in a county. They do not show what happened on your street.
Utilities that do not report can make a county look better than it is. Data ends in 2023. Read the full method.