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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 any US state that year, below the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
3.0
Peak customers out
55,567
Rank (worst state)
39th
Counties affected
20

South Carolina outages over the decade

Average hours without power per customer, 2025 highlighted.

2.5h201513.0h20164.4h20175.2h20184.8h20195.7h20202.1h20214.4h20222.7h202350.1h20243.0h2025

Hardest-hit South Carolina counties in 2025

By peak customers out during the year's worst event.

1Lexington County55,5672Richland County43,8013Horry County30,0164Sumter County22,4285Berkeley County20,6546Greenville County18,9557Aiken County16,6958Anderson County15,3489Oconee County13,27610Calhoun County12,78511Saluda County12,78212Dorchester County12,38613Newberry County9,48014Laurens County8,42115Greenwood County8,32216Pickens County7,95817Beaufort County7,60718Spartanburg County7,57919Charleston County6,83020Edgefield County6,362

Biggest South Carolina outages of 2025

CountyBeganPeak customers out
Lexington CountyJune 7, 202555,567
Richland CountyJune 25, 202543,801
Horry CountyFebruary 20, 202530,016
Horry CountyFebruary 22, 202527,066
Richland CountyJune 7, 202523,109
Sumter CountyJune 20, 202522,428
Berkeley CountyJune 9, 202520,654
Greenville CountyJune 6, 202518,955
Berkeley CountyMarch 5, 202518,917
Berkeley CountyMarch 20, 202517,381
South Carolina by year:20242023202220212020201920182017
Other states in 2025:WVMIAKPANCMO

Part of the 2025 US Power Outage Report. Source: DOE/ORNL EAGLE-I. “Avg hours per customer” is a SAIDI-like measure (outage customer-minutes ÷ tracked customers); coverage varies by year.