Davidson County Power Outage History
2014–2025 · 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 |
|---|---|---|---|
| May 5, 2020 | 4 hrs | 132,893 (36%) | Thunderstorm Wind |
| May 5, 2020 | 59 hrs | 132,165 (36%) | Thunderstorm Wind |
| May 3, 2020 | 9 hrs | 124,024 (34%) | Thunderstorm Wind |
| Dec 23, 2022 | 55 hrs | 123,263 (34%) | Winter Storm Elliott |
| May 4, 2020 | 2 hrs | 112,703 (31%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Davidson County recorded 3,605 distinct power outage events, averaging 2.3 hours per event.
The single worst outage on record in Davidson County started May 5, 2020 (Thunderstorm Wind), lasting 4 hours and leaving up to 132,893 customers without power (36% of the county) at its peak.
July has historically been the worst month for outages in Davidson County, with 412 events recorded during that month across the dataset.
Based on this history, Davidson County earns a Reliability Grade of D, placing it in the 35th 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 Davidson County.
| County | Grade | National percentile |
|---|---|---|
| Fayette County | D | 36th |
| Hancock County | D | 36th |
| Grundy County | D | 37th |
| Fentress County | D | 33rd |
| Polk County | D | 33rd |
FAQ
How often does power go out in Davidson County?
Between 2014 and 2025, Davidson County recorded 3,605 outage events, averaging 2.3 hours each.
What is Davidson County's reliability grade?
Davidson County has a Reliability Grade of D, in the 35th national percentile.
What was the worst power outage in Davidson County?
The worst outage on record started May 5, 2020 (Thunderstorm Wind), lasting 4 hours and affecting up to 132,893 customers.