Sevier CountyPower Outage History
What this grade means
Worse than average — more frequent or longer outages than most counties. This county's recorded history shows more frequent outages and/or longer restoration times than most US counties over the same 12-year period. If you live here, it's worth taking backup power more seriously than an average household would.
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 |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Sevier County, Tennessee that day.
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).
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 |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
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.