massoutage

2018 South Carolina Power Outage Report

In 2018, the average South Carolina customer went without power for about 5.2 hours, the 17th worst of 51 states (US average 5.3 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer
5.2
vs prior year
▲ 17%
vs 2017
Customer-hours out
14.7M
Peak customers out
128,493
across the state at once
EAGLE-I coverage
99%
of SC customers
Counties reporting
46

South Carolina year over year

South Carolina: average hours without power per customer by year2015: 2.5h; 2016: 13.0h; 2017: 4.4h; 2018: 5.2h, coverage 99%; 2019: 4.8h, coverage 99%; 2020: 5.7h, coverage 99%; 2021: 2.1h, coverage 99%; 2022: 4.4h, coverage 99%; 2023: 2.7h; 2024: 48.3h; 2025: 3.0h02040600%50%100%2.5h201513.0h20164.4h20175.2h20184.8h20195.7h20202.1h20214.4h20222.7h202348.3h20243.0h2025
Use the arrow keys to read values.
Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Month by month, 2018

Customer-hours without power across South Carolina; September was the worst.

CSVJSON
South Carolina customer-hours without power by month, 2018Jan 363K, Feb 227K, Mar 332K, Apr 909K, May 514K, Jun 1.6M, Jul 743K, Aug 618K, Sep 4.1M, Oct 1.6M, Nov 419K, Dec 3.2M02M4M6M363KJan227KFeb332KMar909KApr514KMay1.6MJun743KJul618KAug4.1MSep1.6MOct419KNov3.2MDec
Use the arrow keys to read values.

All 46 South Carolina counties, 2018

Ranked by average hours without power per customer. Each county links to its annual report.

CSVJSON
#CountyHrs / customerCustomer-hoursCustomersPeak outEvents
1Marion County64.5548K8,4978,497493
2Dillon County61.2618K10,09910,099552
3Darlington County18.3351K19,2117,094781
4Chesterfield County16.5267K16,1535,354639
5Marlboro County15.1225K14,9594,043418
6McCormick County12.953K4,0913,312261
7Greenville County12.82.7M208,04060,062495
8Spartanburg County10.61.6M147,55830,253613
9Abbeville County9.694K9,8462,765505
10Florence County8.8481K54,56412,740947
11Sumter County8.2347K42,51510,397901
12Colleton County7.7157K20,3557,991851
13Pickens County7.1526K74,03910,086892
14Barnwell County6.367K10,6283,500424
15Anderson County6.1622K101,52010,733747
16Bamberg County6.153K8,7285,097349
17Fairfield County6.185K13,9832,717428
18Oconee County6.0243K40,4253,077872
19Allendale County5.626K4,6392,735237
20Lancaster County5.4283K52,2744,363710
21Horry County4.91.3M259,18946,3561,023
22Clarendon County4.580K17,8093,450699
23Hampton County4.439K8,8864,998426
24Chester County4.389K20,5482,067510
25Aiken County4.3340K79,30919,0961,149
26Saluda County4.351K11,8244,135504
27Williamsburg County4.087K21,4554,505786
28Calhoun County4.037K9,1472,264451
29Lexington County3.5585K165,90439,4481,182
30Edgefield County3.545K12,7171,712572
31Jasper County3.256K17,7024,605478
32Georgetown County2.8131K46,0104,736830
33Greenwood County2.6106K40,6954,061591
34Richland County2.4557K227,55921,3581,209
35Beaufort County2.3298K127,28916,371987
36Kershaw County2.294K43,1983,039613
37Charleston County2.1497K231,04611,577873
38Dorchester County2.1157K73,26914,421943
39Lee County2.012K5,675403188
40Laurens County1.9138K71,5494,541801
41Newberry County1.841K23,3761,540223
42York County1.6283K173,4886,587632
43Berkeley County1.6263K162,21113,7391,034
44Orangeburg County1.694K58,6245,128786
45Cherokee County0.730K39,7411,023377
46Union County0.716K21,9401,421199

Biggest South Carolina outages of 2018

Up to 25 county outage episodes with the most customers out at once.

CSVJSON
#CountyStarted (UTC)Ended (UTC)DurationPeak outCustomer-hours
1Greenville County, SCDecember 9, 2018 02:00December 15, 2018 12:156d 10h60,0621.7M
2Horry County, SCSeptember 15, 2018 04:00September 25, 2018 16:1510d 12h46,356815K
3Horry County, SCSeptember 13, 2018 19:45September 14, 2018 21:451d 2h40,722339K
4Lexington County, SCApril 13, 2018 23:00April 17, 2018 06:153d 7h39,448210K
5Spartanburg County, SCDecember 8, 2018 23:30December 15, 2018 09:456d 10h30,253898K
6Richland County, SCOctober 11, 2018 06:15October 13, 2018 02:001d 19h21,358120K
7Richland County, SCApril 15, 2018 14:15April 20, 2018 13:154d 23h20,399128K
8Aiken County, SCOctober 11, 2018 04:45October 13, 2018 08:152d 3h19,096144K
9Beaufort County, SCOctober 11, 2018 03:15October 12, 2018 23:451d 20h16,37194K
10Dorchester County, SCFebruary 7, 2018 16:45February 8, 2018 04:4512h14,42112K
11Richland County, SCJanuary 13, 2018 06:15January 13, 2018 20:3014h 15m13,9033,764
12Berkeley County, SCMay 7, 2018 12:15May 7, 2018 17:004h 45m13,7399,409
13Richland County, SCJuly 12, 2018 19:00July 13, 2018 03:308h 30m13,7384,650
14Lexington County, SCOctober 11, 2018 02:00October 13, 2018 02:302d13,70498K
15Greenville County, SCOctober 10, 2018 08:15October 14, 2018 12:304d 4h13,46965K
16Greenville County, SCNovember 14, 2018 13:45November 17, 2018 09:452d 20h12,868134K
17Florence County, SCSeptember 15, 2018 04:00September 19, 2018 03:303d 23h12,740281K
18Charleston County, SCOctober 10, 2018 01:30October 13, 2018 04:303d 3h11,57787K
19Horry County, SCDecember 4, 2018 20:30December 5, 2018 05:158h 45m11,39813K
20Anderson County, SCJuly 21, 2018 11:00July 24, 2018 00:152d 13h10,733111K
21Lexington County, SCJune 25, 2018 20:15June 27, 2018 09:451d 13h10,46530K
22Sumter County, SCOctober 11, 2018 05:30October 13, 2018 08:002d 2h10,397110K
23Beaufort County, SCApril 23, 2018 14:15April 24, 2018 02:1512h10,1746,292
24Dillon County, SCSeptember 15, 2018 04:00September 26, 2018 20:0011d 16h10,099517K
25Pickens County, SCMay 19, 2018 02:00May 19, 2018 15:1513h 15m10,0868,321
EAGLE-I tracked about 99% of South Carolina's electricity customers in 2018; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
South Carolina by year:2025202420232022202120202019201720162015
Other states in 2018:NCVAWVMARIVTMEMI

Part of the 2018 US Power Outage Report.

Data from DOE EAGLE-I, every source we read.