Jefferson County, Kentucky Power Outages, 2015 to 2023

Jefferson County, Kentucky had 24 major outages from 2015 to 2023

Below middle outage time among US counties

Residents here averaged 0.79 times the US outage time per person and 0.76 times the Kentucky rate. It ranks 64 of 114 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

2.7major outages per year

8 of 9years with a major outage

148 hrslongest major outage

Mar, Novhardest months

March and November made up 56% of this county's outage time. The largest outage on record began Mar 3, 2023, reached 82,578 customers, and left at least 200 customers out for 148.2 hours.

Outage time per resident, rated Kentucky 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	548,076	297	3
2016	389,992	298	1
2017	359,676	265	0
2018	3,294,297	309	5
2019	597,584	294	2
2020	401,200	249	1
2021	450,925	252	1
2022	973,205	323	6
2023	6,837,837	250	5

When outages hit

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

20%

40%

60%

80%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Mar 3, 2023	148.2	82,578	5,060,513
Nov 15, 2018	86.2	79,447	1,849,634
Aug 25, 2023	66.2	26,444	502,847
Jul 20, 2018	57.2	26,689	497,545
Jun 25, 2023	70.8	23,449	376,409

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.