Edgefield County Power Outage History
2014–2025 · South Carolina
Worse than average — more frequent or longer outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Sep 27, 2024 | 350 hrs | 13,969 (44%) | Tropical Storm Helene |
| Jun 8, 2025 | 18 hrs | 6,362 (20%) | Thunderstorm Wind |
| May 20, 2022 | 4 hrs | 4,610 (15%) | Unnamed event |
| Jul 21, 2023 | 12 hrs | 4,367 (14%) | Thunderstorm Wind |
| Sep 11, 2017 | 47 hrs | 3,991 (13%) | Unnamed event |
Over the 12 years from 2014 to 2025, Edgefield County recorded 613 distinct power outage events, averaging 2.5 hours per event.
The single worst outage on record in Edgefield County started September 27, 2024 (Tropical Storm Helene), lasting 350 hours and leaving up to 13,969 customers without power (44% of the county) at its peak.
May has historically been the worst month for outages in Edgefield County, with 82 events recorded during that month across the dataset.
Based on this history, Edgefield County earns a Reliability Grade of D, placing it in the 21st percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Edgefield County's outage profile
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Similar counties in South Carolina
Counties with the closest reliability grade and national percentile to Edgefield County.
| County | Grade | National percentile |
|---|---|---|
| Saluda County | D | 22nd |
| Oconee County | F | 19th |
| Newberry County | D | 23rd |
| Greenwood County | D | 23rd |
| Pickens County | D | 24th |
FAQ
How often does power go out in Edgefield County?
Between 2014 and 2025, Edgefield County recorded 613 outage events, averaging 2.5 hours each.
What is Edgefield County's reliability grade?
Edgefield County has a Reliability Grade of D, in the 21st national percentile.
What was the worst power outage in Edgefield County?
The worst outage on record started September 27, 2024 (Tropical Storm Helene), lasting 350 hours and affecting up to 13,969 customers.