Power outages in Sumner County, TN
We don't have a live outage feed for the utilities serving Sumner County yet. Nashville Electric Service, Cumberland Elec Member Corp and Tri-County Elec Member Corp (TN) serve this county.
Right now
No live outage data for Sumner County yet.
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This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.i
This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.i
This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.i
This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.Outage map
Outage history in Sumner County
2014–2025 recordSumner County averaged 47 significant outages a year in 2023–2025, more than most Tennessee counties.
In the 12 months to December 2025, there were 43. Half were over within 1 hour; the longest lasted 17 hours, starting April 5, 2025.
The largest on record began December 9, 2023, with 35,732 customers out at once.
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At least 1% of the area's customers, and at least 100, without power at the same time. Outages less than 6 hours apart count as one.i
Half of significant outages here ended sooner than this, and half lasted longer.| Largest events (start) | Peak out | LastediHow long this area stayed at or above the significant-outage line, not how long any one home was without power. | Customer-hoursiCustomers out multiplied by hours out, added up over the event. 1,000 customers out for 3 hours is 3,000 customer-hours. |
|---|---|---|---|
| December 9, 2023 | 35,732 | 3.3 days | 806,808 |
| March 3, 2023 | 24,019 | 3.1 days | 413,931 |
| December 24, 2022 | 13,014 | 5.5 hours | 42,844 |
| December 11, 2021 | 9,785 | 35 hours | 127,790 |
| April 5, 2025 | 9,303 | 17 hours | 80,118 |
Recorded outages from EAGLE-I, Oak Ridge National Laboratory (CC BY 4.0).i
From EAGLE-I, Oak Ridge National Laboratory's record of utility outage data every 15 minutes since 2014 (CC BY 4.0). It covered about 9 in 10 U.S. customers.
Cities in Sumner County
Utilities
- Nashville Electric Service no live feed
- Cumberland Elec Member Corp no live feed
- Tri-County Elec Member Corp (TN) no live feed
- City of Gallatin - (TN) no live feed
- All Tennessee outages