DuPage County, Illinois Power Outages, 2015 to 2023

DuPage County, Illinois had 12 major outages from 2015 to 2023

Lower outage time among US counties

Residents here averaged 0.28 times the US outage time per person and 0.67 times the Illinois rate. It ranks 78 of 95 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

1.3major outages per year

6 of 9years with a major outage

64 hrslongest major outage

Aug, Novhardest months

August and November made up 56% of this county's outage time. The largest outage on record began Aug 11, 2020, reached 35,118 customers, and left at least 200 customers out for 43.2 hours.

Outage time per resident, rated Illinois counties

MostLeast

Outage impact by year

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

0.5M

1.5M

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	460,288	338	0
2016	220,541	142	0
2017	552,311	255	1
2018	1,148,021	304	3
2019	442,095	244	2
2020	1,978,180	235	3
2021	555,116	273	2
2022	220,649	223	0
2023	252,030	212	1

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
Aug 11, 2020	43.2	35,118	638,953
Aug 10, 2020	11.8	64,595	632,140
Nov 26, 2018	63.8	26,310	494,280
Aug 11, 2020	10.8	49,827	463,312
Nov 26, 2018	14.0	27,278	264,496

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.