Roane County Power Outage History
2014–2025 · Tennessee
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 4, 2019 | 1 hrs | 4,111 (13%) | Unnamed event |
| Jan 26, 2021 | 1 hrs | 4,002 (12%) | Unnamed event |
| Jan 17, 2022 | 1 hrs | 3,997 (12%) | Unnamed event |
| Feb 28, 2025 | 3 hrs | 3,864 (12%) | Unnamed event |
| Apr 27, 2024 | 2 hrs | 3,815 (12%) | Unnamed event |
Over the 12 years from 2014 to 2025, Roane County recorded 347 distinct power outage events, averaging 2.2 hours per event.
The single worst outage on record in Roane County started August 4, 2019, lasting 1 hours and leaving up to 4,111 customers without power (13% of the county) at its peak.
May has historically been the worst month for outages in Roane County, with 41 events recorded during that month across the dataset.
Based on this history, Roane County earns a Reliability Grade of A, placing it in the 81st percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Roane County's outage profile
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Similar counties in Tennessee
Counties with the closest reliability grade and national percentile to Roane County.
| County | Grade | National percentile |
|---|---|---|
| Van Buren County | A | 81st |
| Washington County | B | 79th |
| Wilson County | B | 79th |
| Bedford County | A | 83rd |
| McMinn County | B | 78th |
FAQ
How often does power go out in Roane County?
Between 2014 and 2025, Roane County recorded 347 outage events, averaging 2.2 hours each.
What is Roane County's reliability grade?
Roane County has a Reliability Grade of A, in the 81st national percentile.
What was the worst power outage in Roane County?
The worst outage on record started August 4, 2019, lasting 1 hours and affecting up to 4,111 customers.