Power Outages in Sumner County, TN
As of July 18, 2026 19:41 UTC, about 1 customers are without power in Sumner County, TN across 1 reported incident. In 2025, the average customer here lost power for about 3.2 hours.
Sumner County, TN is served by 2 tracked utilities.
No active NWS alerts for Sumner County right now.
Sumner County has been under 7 National Weather Service alerts recently — most recently a Flood Watch on July 12, 2026.
- Flood Watch ×3
- Severe Thunderstorm Warning ×2
- Flood Advisory ×1
- Special Weather Statement ×1
Latest Sumner County, TN outage updates
A running log of how this outage has changed — updated automatically as utilities report in.
- RESOLVED
Power restored after 1h 28m
- OUTAGE BEGAN
Outage began — 1,304 customers out (1.5% of the county)
- RESOLVED
Power restored after 32m
- OUTAGE BEGAN
Outage began — 1,439 customers out
- RESOLVED
Power restored after 21m
- OUTAGE BEGAN
Outage began — 1,836 customers out
- RESOLVED
Power restored after 11m
- OUTAGE BEGAN
Outage began — 1,096 customers out
Hardest-hit cities in Sumner County
Where this event is concentrated across the county's towns and townships.
Live outage counts are tracked at the county level; a city-by-city split within Sumner Countyisn't available yet.
Historical reliability
In 2025, the average customer in Sumner County went about 3.2 hours without power. Peak simultaneous outage on record reached 35,732 customers.
Worst year here was 2023 (peak 35,732 customers out) · decade average 3.9 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 1,005 | 7,572 | 2.6 |
| 2016 | 947 | 8,034 | 2.3 |
| 2017 | 983 | 6,646 | 1.5 |
| 2018 | 1,044 | 4,974 | 1.2 |
| 2019 | 1,107 | 8,941 | 2.5 |
| 2020 | 1,059 | 8,262 | 2.5 |
| 2021 | 917 | 9,785 | 3.6 |
| 2022 | 1,075 | 13,014 | 2.9 |
| 2023 | 863 | 35,732 | 17.7 |
| 2024 | 930 | 17,222 | 2.9 |
| 2025 | 986 | 9,303 | 3.2 |
Relatively High ice storms exposure · 3.9 hrs/yr of outages over the last decade.
Power outages in Sumner County: FAQ
- How often does Sumner County, TN lose power?
- Based on EAGLE-I records, Sumner County, TN logged 986 distinct outage events in 2025, averaging about 3.2 hours without power per customer over the year.
- What was the worst power outage in Sumner County, TN?
- The largest tracked outage peaked at 35,732 customers without power, beginning December 9, 2023 and lasting about 11d 23h.
- Is there a power outage in Sumner County, TN right now?
- Yes — about 1 customers are currently without power across 1 reported incident(s).
- Which utilities serve Sumner County, TN?
- Tracked electric providers include CUMBERLAND ELEC MEMBER CORP, NASHVILLE ELECTRIC SERVICE.
Hendersonville, Gallatin. Outage counts for these communities are reported at the Sumner County level shown above.
Outages are tracked at the county level; these ZIP codes fall within Sumner County.
37022, 37031, 37048, 37066, 37075, 37148, 37186
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| NASHVILLE ELECTRIC SERVICE | — | ODIN ✓ | — |
| CUMBERLAND ELEC MEMBER CORP | — | ODIN ✓ | — |
Machine-readable data: /api/v1/counties/47165 and /api/v1/counties/47165/history. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Tennessee customers). Live data as of .