Knox County, Tennessee Power Outages, 2015 to 2023

Knox County, Tennessee had 50 major outages from 2015 to 2023

Below middle outage time among US counties

Residents here averaged 0.70 times the US outage time per person and 0.75 times the Tennessee rate. It ranks 29 of 78 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

5.6major outages per year

8 of 9years with a major outage

56 hrslongest major outage

Aug, Julhardest months

August and July made up 29% of this county's outage time. The largest outage on record began Aug 7, 2023, reached 68,001 customers, and left at least 200 customers out for 16.2 hours.

Outage time per resident, rated Tennessee 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	175,488	100	0
2016	614,210	186	5
2017	775,804	220	4
2018	592,372	284	1
2019	719,904	363	7
2020	1,049,201	316	8
2021	648,018	377	3
2022	1,453,129	401	11
2023	1,826,848	353	11

When outages hit

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

10%

15%

20%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Aug 7, 2023	16.2	68,001	498,572
May 28, 2017	43.5	44,151	349,314
Aug 8, 2023	53.5	18,120	233,057
Apr 1, 2023	38.0	27,000	188,706
Dec 24, 2020	17.0	19,852	174,591

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.