Gibson County Power Outage History
2016–2025 · 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 |
|---|---|---|---|
| May 3, 2020 | 8 hrs | 5,239 (19%) | Thunderstorm Wind |
| Dec 9, 2023 | 12 hrs | 4,484 (16%) | Drought |
| Jul 18, 2023 | 9 hrs | 4,265 (15%) | Heat |
| May 29, 2017 | 2 hrs | 4,203 (15%) | Hail |
| Mar 3, 2023 | 28 hrs | 4,098 (15%) | High Wind |
Over the 10 years from 2016 to 2025, Gibson County recorded 310 distinct power outage events, averaging 1.4 hours per event.
The single worst outage on record in Gibson County started May 3, 2020 (Thunderstorm Wind), lasting 8 hours and leaving up to 5,239 customers without power (19% of the county) at its peak.
August has historically been the worst month for outages in Gibson County, with 35 events recorded during that month across the dataset.
Based on this history, Gibson County earns a Reliability Grade of A, placing it in the 88th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Gibson County's outage profile
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Similar counties in Tennessee
Counties with the closest reliability grade and national percentile to Gibson County.
| County | Grade | National percentile |
|---|---|---|
| Overton County | A | 88th |
| Hamilton County | A | 88th |
| Hamblen County | A | 90th |
| Williamson County | A | 90th |
| Anderson County | A | 91st |
FAQ
How often does power go out in Gibson County?
Between 2016 and 2025, Gibson County recorded 310 outage events, averaging 1.4 hours each.
What is Gibson County's reliability grade?
Gibson County has a Reliability Grade of A, in the 88th national percentile.
What was the worst power outage in Gibson County?
The worst outage on record started May 3, 2020 (Thunderstorm Wind), lasting 8 hours and affecting up to 5,239 customers.