Chester County, South Carolina Power Outages, 2015 to 2023

Chester County, South Carolina had 22 major outages from 2015 to 2023

Above middle outage time among US counties

Residents here averaged 0.90 times the US outage time per person and 0.95 times the South Carolina rate. It ranks 27 of 46 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

2.4major outages per year

6 of 9years with a major outage

128 hrslongest major outage

Jan, Dechardest months

January and December made up 30% of this county's outage time. The largest outage on record began Sep 11, 2017, reached 2,178 customers, and left at least 200 customers out for 52.5 hours.

Outage time per resident, rated South Carolina 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	36,511	28	1
2016	27,292	21	0
2017	71,326	30	1
2018	68,024	24	4
2019	26,768	31	0
2020	134,388	32	5
2021	41,554	34	3
2022	210,405	50	8
2023	22,885	25	0

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
Sep 11, 2017	52.5	2,178	51,420
May 22, 2020	25.8	3,480	49,334
Jan 16, 2022	33.8	2,428	44,368
Dec 26, 2022	127.8	532	43,692
Apr 13, 2020	33.2	2,024	35,072

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.