Sevier County Power Outage History
2015–2025 · Tennessee
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 |
|---|---|---|---|
| Jan 3, 2022 | 52 hrs | 29,229 (40%) | High Wind |
| Dec 24, 2020 | 96 hrs | 27,962 (39%) | High Wind |
| May 28, 2017 | 50 hrs | 19,970 (28%) | Thunderstorm Wind |
| Dec 24, 2022 | 8 hrs | 15,336 (21%) | Winter Storm Elliott |
| May 4, 2017 | 28 hrs | 14,877 (21%) | Unnamed event |
Over the 11 years from 2015 to 2025, Sevier County recorded 1,184 distinct power outage events, averaging 2.8 hours per event.
The single worst outage on record in Sevier County started January 3, 2022 (High Wind), lasting 52 hours and leaving up to 29,229 customers without power (40% of the county) at its peak.
May has historically been the worst month for outages in Sevier County, with 125 events recorded during that month across the dataset.
Based on this history, Sevier County earns a Reliability Grade of D, placing it in the 20th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Tennessee
Counties with the closest reliability grade and national percentile to Sevier County.
| County | Grade | National percentile |
|---|---|---|
| Stewart County | D | 21st |
| Clay County | D | 24th |
| Pickett County | D | 26th |
| Meigs County | D | 29th |
| Henry County | D | 29th |
FAQ
How often does power go out in Sevier County?
Between 2015 and 2025, Sevier County recorded 1,184 outage events, averaging 2.8 hours each.
What is Sevier County's reliability grade?
Sevier County has a Reliability Grade of D, in the 20th national percentile.
What was the worst power outage in Sevier County?
The worst outage on record started January 3, 2022 (High Wind), lasting 52 hours and affecting up to 29,229 customers.