Chesterfield County Power Outage History
2014–2025 · South Carolina
Average — typical outage frequency and duration nationally. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Oct 8, 2016 | 98 hrs | 10,511 (33%) | Hurricane Matthew |
| Feb 17, 2015 | 12 hrs | 8,650 (27%) | Ice Storm |
| Oct 8, 2016 | 6 hrs | 8,031 (25%) | Hurricane Matthew |
| Jul 23, 2023 | 13 hrs | 6,752 (21%) | Thunderstorm Wind |
| Feb 17, 2015 | 26 hrs | 6,524 (21%) | Ice Storm |
Over the 12 years from 2014 to 2025, Chesterfield County recorded 673 distinct power outage events, averaging 2.7 hours per event.
The single worst outage on record in Chesterfield County started October 8, 2016 (Hurricane Matthew), lasting 98 hours and leaving up to 10,511 customers without power (33% of the county) at its peak.
June has historically been the worst month for outages in Chesterfield County, with 91 events recorded during that month across the dataset.
Based on this history, Chesterfield County earns a Reliability Grade of C, placing it in the 42nd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Chesterfield County's outage profile
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Similar counties in South Carolina
Counties with the closest reliability grade and national percentile to Chesterfield County.
| County | Grade | National percentile |
|---|---|---|
| Florence County | C | 41st |
| Allendale County | C | 40th |
| Colleton County | D | 38th |
| Fairfield County | C | 47th |
| Laurens County | C | 48th |
FAQ
How often does power go out in Chesterfield County?
Between 2014 and 2025, Chesterfield County recorded 673 outage events, averaging 2.7 hours each.
What is Chesterfield County's reliability grade?
Chesterfield County has a Reliability Grade of C, in the 42nd national percentile.
What was the worst power outage in Chesterfield County?
The worst outage on record started October 8, 2016 (Hurricane Matthew), lasting 98 hours and affecting up to 10,511 customers.