Trousdale CountyPower Outage History
2014–2025 · Tennessee
Average — typical outage frequency and duration nationally.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jul 19, 2020 | 2 hrs | 5,289 (85%) | Unnamed event |
| Jul 23, 2020 | <1 hr | 5,288 (85%) | Unnamed event |
| Dec 12, 2019 | <1 hr | 5,250 (85%) | Unnamed event |
| Feb 12, 2019 | 2 hrs | 5,095 (82%) | Unnamed event |
| Nov 18, 2017 | 8 hrs | 5,005 (81%) | Tornado |
Over the 12 years from 2014 to 2025, Trousdale County recorded 400 distinct power outage events, averaging 1.7 hours per event.
The single worst outage on record in Trousdale County started July 19, 2020, lasting 2 hours and leaving up to 5,289 customers without power (85% of the county) at its peak.
July has historically been the worst month for outages in Trousdale County, with 72 events recorded during that month across the dataset.
Based on this history, Trousdale County earns a Reliability Grade of C, placing it in the 52nd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Trousdale County's outage profile
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Similar counties in Tennessee
Counties with the closest reliability grade and national percentile to Trousdale County.
| County | Grade | National percentile |
|---|---|---|
| Blount County | C | 52nd |
| Knox County | C | 52nd |
| Robertson County | C | 53rd |
| Cumberland County | C | 52nd |
| Sullivan County | C | 55th |
Most reliable counties in Tennessee
The top 3 counties in Tennessee by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Lincoln County | A | 99th |
| Jackson County | A | 99th |
| Scott County | A | 98th |
Least reliable counties in Tennessee
The bottom 3 counties in Tennessee by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Shelby County | F | 8th |
| Sevier County | D | 20th |
| Stewart County | D | 21st |
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 Trousdale County?
Between 2014 and 2025, Trousdale County recorded 400 outage events, averaging 1.7 hours each.
What is Trousdale County's reliability grade?
Trousdale County has a Reliability Grade of C, in the 52nd national percentile.
What was the worst power outage in Trousdale County?
The worst outage on record started July 19, 2020, lasting 2 hours and affecting up to 5,289 customers.