Stephenson County, Illinois Power Outages, 2015 to 2023

Stephenson County, Illinois had 13 major outages from 2015 to 2023

Below middle outage time among US counties

Residents here averaged 0.58 times the US outage time per person and 1.36 times the Illinois rate. It ranks 46 of 95 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

1.4major outages per year

5 of 9years with a major outage

60 hrslongest major outage

Jul, Febhardest months

July and February made up 54% of this county's outage time. The largest outage on record began Feb 22, 2023, reached 6,972 customers, and left at least 200 customers out for 59.5 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.

100K

200K

300K

400K

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	47,125	26	1
2016	18,685	13	0
2017	84,332	14	3
2018	24,008	14	2
2019	43,104	27	0
2020	86,432	20	3
2021	14,370	22	0
2022	3,456	8	0
2023	224,606	28	4

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
Feb 22, 2023	59.5	6,972	131,436
Jul 29, 2023	37.0	4,300	65,890
Jul 20, 2017	32.5	5,080	45,526
Aug 10, 2020	23.5	2,595	29,470
Jan 11, 2020	20.8	2,781	27,937

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.

Look up another county

Counties ranked nearby

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.