Calhoun County power outages

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

Calhoun County, South Carolina had 4 major outages from 2015 to 2023

Below middle outage time among US counties

Residents here averaged 0.76 times the US outage time per person and 0.81 times the South Carolina rate. It ranks 33 of 46 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
97 hrslongest major outage
Oct, Junhardest months

October and June made up 63% of this county's outage time. The largest outage on record began Oct 8, 2016, reached 2,719 customers, and left at least 200 customers out for 97.0 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.

0
50K
100K
150K
200K
2015'152016'162017'172018'182019'192020'202021'212022'222023'23
Show yearly numbers
YearCustomer-hoursReported outagesMajor outages
201529210
2016116,85561
20173,52690
201828,343231
201924,322270
202018,608210
202113,391120
202220,107232
202313,338220

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
Oct 8, 201697.02,71997,504
Oct 8, 20167.02,71318,156
Oct 11, 201812.22,26414,100
Dec 25, 20205.02,0497,462
Nov 12, 202220.83146,256

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.

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.