Loudon County Power Outage History
2015–2025 · Tennessee
Better than average — fewer or shorter 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 |
|---|---|---|---|
| Jul 16, 2020 | 0 hrs | 6,765 (24%) | Unnamed event |
| Aug 20, 2019 | 0 hrs | 6,439 (22%) | Unnamed event |
| May 21, 2025 | 5 hrs | 6,203 (22%) | Thunderstorm Wind |
| May 6, 2022 | 18 hrs | 5,319 (18%) | Thunderstorm Wind |
| Feb 28, 2024 | 11 hrs | 5,164 (18%) | Thunderstorm Wind |
Over the 11 years from 2015 to 2025, Loudon County recorded 517 distinct power outage events, averaging 1.9 hours per event.
The single worst outage on record in Loudon County started July 16, 2020, lasting 0 hours and leaving up to 6,765 customers without power (24% of the county) at its peak.
July has historically been the worst month for outages in Loudon County, with 73 events recorded during that month across the dataset.
Based on this history, Loudon County earns a Reliability Grade of B, placing it in the 69th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Loudon County's outage profile
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Similar counties in Tennessee
Counties with the closest reliability grade and national percentile to Loudon County.
| County | Grade | National percentile |
|---|---|---|
| Maury County | B | 68th |
| Coffee County | B | 69th |
| Jefferson County | B | 70th |
| Sequatchie County | B | 70th |
| Haywood County | B | 72nd |
FAQ
How often does power go out in Loudon County?
Between 2015 and 2025, Loudon County recorded 517 outage events, averaging 1.9 hours each.
What is Loudon County's reliability grade?
Loudon County has a Reliability Grade of B, in the 69th national percentile.
What was the worst power outage in Loudon County?
The worst outage on record started July 16, 2020, lasting 0 hours and affecting up to 6,765 customers.