Clay County power outages

Illinois outage history from 2015 to 2023, with the largest outages and a backup battery estimate.

Clay County, Illinois had 4 major outages from 2015 to 2023

Lower outage time among US counties

Residents here averaged 0.27 times the US outage time per person and 0.64 times the Illinois rate. It ranks 79 of 95 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

0.4major outages per year
3 of 9years with a major outage
17 hrslongest major outage
Jun, Mayhardest months

June and May made up 63% of this county's outage time. The largest outage on record began Jun 2, 2018, reached 5,589 customers, and left at least 200 customers out for 9.0 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
20K
40K
60K
80K
2015'152016'162017'172018'182019'192020'202021'212022'222023'23
Show yearly numbers
YearCustomer-hoursReported outagesMajor outages
20152,52020
20161,79120
201747010
201843,715122
201913,983170
202075210
20216,79831
20225,46041
20231,28410

When outages hit

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

0%
20%
40%
60%
80%
JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start dateHoursPeak customersCustomer-hours
Jun 2, 20189.05,58925,300
May 31, 201816.86317,270
May 17, 20183.81,2354,617
Apr 29, 202113.23194,190
Jun 17, 202210.26704,156

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.

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.