Stewart County Power Outage History
2017–2025 · 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 |
|---|---|---|---|
| Mar 3, 2023 | 1 hrs | 6,923 (86%) | High Wind |
| Mar 4, 2023 | 8 hrs | 6,923 (86%) | High Wind |
| Mar 3, 2023 | 1 hrs | 6,923 (86%) | High Wind |
| Mar 4, 2023 | 1 hrs | 6,923 (86%) | High Wind |
| Jul 7, 2021 | 2 hrs | 5,235 (65%) | Unnamed event |
Over the 9 years from 2017 to 2025, Stewart County recorded 1,007 distinct power outage events, averaging 2.0 hours per event.
The single worst outage on record in Stewart County started March 3, 2023 (High Wind), lasting 1 hours and leaving up to 6,923 customers without power (86% of the county) at its peak.
July has historically been the worst month for outages in Stewart County, with 120 events recorded during that month across the dataset.
Based on this history, Stewart County earns a Reliability Grade of D, placing it in the 21st percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Stewart County's outage profile
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Similar counties in Tennessee
Counties with the closest reliability grade and national percentile to Stewart County.
| County | Grade | National percentile |
|---|---|---|
| Sevier County | D | 20th |
| Clay County | D | 24th |
| Pickett County | D | 26th |
| Meigs County | D | 29th |
| Henry County | D | 29th |
FAQ
How often does power go out in Stewart County?
Between 2017 and 2025, Stewart County recorded 1,007 outage events, averaging 2.0 hours each.
What is Stewart County's reliability grade?
Stewart County has a Reliability Grade of D, in the 21st national percentile.
What was the worst power outage in Stewart County?
The worst outage on record started March 3, 2023 (High Wind), lasting 1 hours and affecting up to 6,923 customers.