Putnam County Power Outage History
2019–2025 · 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 |
|---|---|---|---|
| Dec 5, 2024 | 1 hrs | 2,330 (5%) | Drought |
| Sep 27, 2024 | 1 hrs | 2,280 (4%) | Hurricane Helene |
| Mar 16, 2025 | 13 hrs | 2,070 (4%) | Unnamed event |
| Jul 25, 2019 | 0 hrs | 1,979 (4%) | Unnamed event |
| Oct 26, 2019 | 5 hrs | 1,942 (4%) | Drought |
Over the 7 years from 2019 to 2025, Putnam County recorded 97 distinct power outage events, averaging 2.0 hours per event.
The single worst outage on record in Putnam County started December 5, 2024 (Drought), lasting 1 hours and leaving up to 2,330 customers without power (5% of the county) at its peak.
March has historically been the worst month for outages in Putnam County, with 16 events recorded during that month across the dataset.
Based on this history, Putnam County earns a Reliability Grade of A, placing it in the 98th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Putnam County's outage profile
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Similar counties in Tennessee
Counties with the closest reliability grade and national percentile to Putnam County.
| County | Grade | National percentile |
|---|---|---|
| Scott County | A | 98th |
| DeKalb County | A | 97th |
| Jackson County | A | 99th |
| Lincoln County | A | 99th |
| Unicoi County | A | 96th |
FAQ
How often does power go out in Putnam County?
Between 2019 and 2025, Putnam County recorded 97 outage events, averaging 2.0 hours each.
What is Putnam County's reliability grade?
Putnam County has a Reliability Grade of A, in the 98th national percentile.
What was the worst power outage in Putnam County?
The worst outage on record started December 5, 2024 (Drought), lasting 1 hours and affecting up to 2,330 customers.