massoutage

2020 South Carolina Power Outage Report

In 2020, the average South Carolina customer went without power for about 5.7 hours, the 23rd worst of 51 states (US average 8.0 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer
5.7
vs prior year
▲ 19%
vs 2019
Customer-hours out
16.2M
Peak customers out
285,814
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, 2020

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

CSVJSON
South Carolina customer-hours without power by month, 2020Jan 707K, Feb 1.0M, Mar 308K, Apr 3.8M, May 1.2M, Jun 850K, Jul 628K, Aug 773K, Sep 377K, Oct 5.1M, Nov 828K, Dec 532K02M4M6M707KJan1.0MFeb308KMar3.8MApr1.2MMay850KJun628KJul773KAug377KSep5.1MOct828KNov532KDec
Use the arrow keys to read values.

All 46 South Carolina counties, 2020

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

CSVJSON
#CountyHrs / customerCustomer-hoursCustomersPeak outEvents
1Oconee County55.92.3M40,42526,690526
2Pickens County22.11.6M74,03927,670778
3Greenville County15.33.2M208,04071,283448
4Hampton County12.4110K8,8865,024346
5Anderson County12.41.3M101,52021,526676
6Colleton County11.7237K20,35512,944652
7Spartanburg County11.41.7M147,55831,486607
8Barnwell County11.4121K10,6287,897357
9Chesterfield County9.3151K16,1535,511678
10Chester County9.0185K20,5483,480466
11McCormick County7.631K4,0912,007222
12Orangeburg County6.7390K58,62414,062888
13Lee County6.537K5,6752,031409
14Fairfield County6.387K13,9831,668268
15Marion County5.144K8,4972,001548
16Abbeville County4.645K9,8461,384398
17Saluda County4.654K11,8244,214461
18Bamberg County4.337K8,7284,252308
19Darlington County4.281K19,2113,793741
20Cherokee County4.1164K39,7414,302516
21Lancaster County3.9204K52,2744,794679
22Allendale County3.617K4,639608218
23Jasper County3.562K17,7021,963396
24Newberry County3.479K23,3762,695395
25Laurens County3.4243K71,5495,635723
26Kershaw County3.3144K43,1982,586658
27Calhoun County3.330K9,1472,049405
28Edgefield County3.342K12,7171,445501
29Marlboro County3.349K14,9593,518256
30Sumter County3.2135K42,5155,165849
31Berkeley County2.9467K162,21121,751833
32Dorchester County2.7197K73,26913,943791
33Dillon County2.324K10,0991,489446
34Georgetown County2.3106K46,0104,363695
35Greenwood County2.292K40,6954,449475
36Lexington County2.2372K165,90415,0421,015
37Clarendon County2.138K17,8092,099587
38York County2.1373K173,48813,769693
39Aiken County2.1170K79,3098,6111,018
40Williamsburg County2.144K21,4551,881656
41Richland County1.9441K227,55917,199987
42Charleston County1.9446K231,04619,432701
43Florence County1.9102K54,56410,146948
44Beaufort County1.4174K127,2899,896822
45Horry County1.2321K259,18914,5911,090
46Union County0.614K21,940784158

Biggest South Carolina outages of 2020

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

CSVJSON
#CountyStarted (UTC)Ended (UTC)DurationPeak outCustomer-hours
1Greenville County, SCOctober 27, 2020 12:45November 5, 2020 05:458d 17h71,2832.2M
2Greenville County, SCApril 6, 2020 13:30April 16, 2020 21:0010d 7h35,691173K
3Spartanburg County, SCOctober 27, 2020 13:15November 3, 2020 07:156d 18h31,486622K
4Pickens County, SCOctober 29, 2020 12:45November 6, 2020 02:457d 14h27,6701.1M
5Oconee County, SCOctober 27, 2020 12:45November 3, 2020 23:457d 11h26,690696K
6Pickens County, SCApril 6, 2020 14:00April 16, 2020 23:1510d 9h22,683327K
7Berkeley County, SCApril 6, 2020 13:30April 15, 2020 01:308d 12h21,751150K
8Anderson County, SCApril 6, 2020 14:00April 17, 2020 04:1510d 14h21,526473K
9Oconee County, SCApril 6, 2020 13:30April 18, 2020 13:4512d20,719839K
10Charleston County, SCMay 27, 2020 10:00May 28, 2020 03:0017h19,43211K
11Greenville County, SCMay 22, 2020 11:15May 24, 2020 07:301d 20h18,59796K
12Anderson County, SCOctober 27, 2020 13:15November 2, 2020 06:155d 17h17,529353K
13Richland County, SCApril 6, 2020 13:30April 15, 2020 04:308d 15h17,199134K
14Spartanburg County, SCFebruary 6, 2020 10:30February 10, 2020 09:303d 23h15,534573K
15Lexington County, SCApril 6, 2020 17:00April 15, 2020 00:458d 7h15,04275K
16Horry County, SCAugust 3, 2020 11:00August 4, 2020 22:451d 11h14,59142K
17Orangeburg County, SCApril 13, 2020 07:30April 15, 2020 23:002d 15h14,062120K
18Dorchester County, SCApril 13, 2020 12:45April 15, 2020 18:152d 5h13,943108K
19York County, SCApril 6, 2020 14:15April 15, 2020 21:459d 7h13,769118K
20Horry County, SCJuly 13, 2020 15:30July 14, 2020 04:3013h13,27619K
21Colleton County, SCApril 6, 2020 17:15April 17, 2020 00:4510d 7h12,944160K
22Pickens County, SCAugust 21, 2020 03:30August 21, 2020 23:4520h 15m11,00529K
23Greenville County, SCApril 26, 2020 00:00April 28, 2020 10:302d 10h10,80297K
24Pickens County, SCJanuary 30, 2020 14:30January 31, 2020 04:0013h 30m10,16832K
25Florence County, SCJuly 28, 2020 20:45July 29, 2020 03:306h 45m10,1466,472
EAGLE-I tracked about 99% of South Carolina's electricity customers in 2020; 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:2025202420232022202120192018201720162015
Other states in 2020:LAMEOKIAALMSNJNC

Part of the 2020 US Power Outage Report.

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