Sullivan County, Tennessee Power Outages, 2015 to 2023

Sullivan County, Tennessee had 18 major outages from 2015 to 2023

Below middle outage time among US counties

Residents here averaged 0.59 times the US outage time per person and 0.63 times the Tennessee rate. It ranks 35 of 78 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

2.0major outages per year

6 of 9years with a major outage

76 hrslongest major outage

Jul, Dechardest months

July and December made up 44% of this county's outage time. The largest outage on record began Dec 9, 2018, reached 7,445 customers, and left at least 200 customers out for 75.8 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.

200K

400K

600K

800K

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	103,397	79	0
2016	308,059	86	2
2017	89,384	54	0
2018	584,631	98	2
2019	115,978	78	0
2020	164,336	72	2
2021	93,326	68	1
2022	255,998	87	7
2023	380,879	83	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
Dec 9, 2018	75.8	7,445	261,935
Jul 21, 2018	46.5	12,117	193,626
Jul 29, 2023	48.2	12,565	172,274
Jan 3, 2023	8.2	15,053	74,594
May 2, 2016	37.0	1,427	49,163

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.