massoutage

2025 South Carolina Power Outage Report

In 2025, the average South Carolina customer went without power for about 3.0 hours, the 39th worst of 51 states (US average 5.3 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer
3.0
vs prior year
▼ 94%
vs 2024
Customer-hours out
8.5M
Peak customers out
193,770
across the state at once
EAGLE-I coverage
n/a
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, 2025

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

CSVJSON
South Carolina customer-hours without power by month, 2025Jan 452K, Feb 321K, Mar 455K, Apr 537K, May 620K, Jun 3.1M, Jul 721K, Aug 882K, Sep 350K, Oct 396K, Nov 385K, Dec 329K01M2M3M4M452KJan321KFeb455KMar537KApr620KMay3.1MJun721KJul882KAug350KSep396KOct385KNov329KDec
Use the arrow keys to read values.

All 46 South Carolina counties, 2025

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

CSVJSON
#CountyHrs / customerCustomer-hoursCustomersPeak outEvents
1McCormick County25.3104K4,0913,697212
2Saluda County16.7197K11,82411,824310
3Lee County8.146K5,6752,849420
4Newberry County7.3172K23,3769,480673
5Oconee County6.9277K40,42513,276790
6Abbeville County6.766K9,8462,853383
7Greenwood County6.2254K40,6958,322544
8Calhoun County5.651K9,1479,147687
9Edgefield County5.671K12,7176,362565
10Allendale County5.526K4,6392,006297
11Anderson County5.3536K101,52015,348645
12Colleton County5.1105K20,3553,583833
13Fairfield County4.867K13,9832,423531
14Chesterfield County4.268K16,1533,357792
15Lexington County4.0662K165,90455,567868
16Chester County3.777K20,5483,109566
17Marion County3.731K8,4971,510569
18Aiken County3.7293K79,30916,695964
19Greenville County3.6747K208,04018,955547
20Williamsburg County3.576K21,4555,067780
21Barnwell County3.537K10,6283,838515
22Dillon County3.435K10,0992,208566
23Spartanburg County3.2473K147,5587,579620
24Lancaster County3.1161K52,2745,861765
25Hampton County3.027K8,8861,766440
26Darlington County2.955K19,2114,113875
27Richland County2.9653K227,55943,801981
28Dorchester County2.8208K73,26912,386982
29Jasper County2.850K17,7023,660625
30Pickens County2.8210K74,0397,958835
31Clarendon County2.748K17,8092,899759
32Berkeley County2.6428K162,21120,6541,007
33Laurens County2.6187K71,5498,421848
34Sumter County2.5106K42,51522,428842
35Bamberg County2.521K8,728904338
36Georgetown County2.4110K46,0102,616797
37Cherokee County2.494K39,7415,450645
38Charleston County2.3520K231,0466,830835
39Kershaw County2.192K43,1984,356871
40Union County1.840K21,9401,822256
41York County1.7296K173,4884,971854
42Horry County1.6407K259,18930,0161,215
43Florence County1.584K54,5644,0991,081
44Beaufort County1.4181K127,2897,607821
45Orangeburg County1.270K58,6246,191843
46Marlboro County1.116K14,9591,121380

Biggest South Carolina outages of 2025

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

CSVJSON
#CountyStarted (UTC)Ended (UTC)DurationPeak outCustomer-hours
1Lexington County, SCJune 7, 2025 21:00June 9, 2025 23:302d 2h55,567387K
2Richland County, SCJune 25, 2025 07:45June 26, 2025 17:001d 9h43,801234K
3Horry County, SCFebruary 20, 2025 12:15February 20, 2025 18:456h 30m30,01630K
4Horry County, SCFebruary 22, 2025 23:00February 23, 2025 00:301h 30m27,06613K
5Richland County, SCJune 7, 2025 23:45June 11, 2025 04:303d 4h23,109184K
6Sumter County, SCJune 20, 2025 18:30June 20, 2025 18:4515m22,4285,607
7Berkeley County, SCJune 9, 2025 10:00June 10, 2025 05:4519h 45m20,65436K
8Greenville County, SCJune 6, 2025 11:30June 10, 2025 04:303d 17h18,955112K
9Berkeley County, SCMarch 5, 2025 15:00March 6, 2025 01:4510h 45m18,91714K
10Berkeley County, SCMarch 20, 2025 23:30March 21, 2025 05:306h17,38112K
11Aiken County, SCJune 7, 2025 21:15June 8, 2025 23:301d 2h16,69580K
12Greenville County, SCJune 17, 2025 11:00June 20, 2025 09:152d 22h16,00289K
13Anderson County, SCJune 7, 2025 10:15June 11, 2025 06:453d 20h15,348168K
14Berkeley County, SCSeptember 19, 2025 04:45September 19, 2025 06:301h 45m13,80822K
15Oconee County, SCJune 15, 2025 12:00June 15, 2025 14:152h 15m13,2765,150
16Berkeley County, SCOctober 15, 2025 11:15October 15, 2025 22:1511h12,5146,362
17Dorchester County, SCMarch 21, 2025 01:45March 21, 2025 04:152h 30m12,38611K
18Saluda County, SCJune 8, 2025 00:30June 9, 2025 22:001d 21h11,82496K
19Greenville County, SCJune 25, 2025 11:45June 26, 2025 17:001d 5h11,63070K
20Dorchester County, SCJune 9, 2025 21:00June 10, 2025 09:3012h 30m11,44721K
21Richland County, SCAugust 21, 2025 21:30August 22, 2025 04:006h 30m10,96419K
22Newberry County, SCJune 7, 2025 23:15June 10, 2025 06:002d 6h9,48076K
23Calhoun County, SCJune 26, 2025 00:00June 26, 2025 10:1510h 15m9,14714K
24Oconee County, SCJune 7, 2025 21:30June 9, 2025 21:302d8,68562K
25Lexington County, SCDecember 17, 2025 20:45December 18, 2025 02:456h8,62012K
EAGLE-I tracked about n/a of South Carolina's electricity customers in 2025; 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:2024202320222021202020192018201720162015
Other states in 2025:WVMIAKPAMOVANCAR

Part of the 2025 US Power Outage Report.

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