Power Outages in Union County, TN
As of the latest utility report, no major power outages are reported in Union County, TN. In 2025, the average customer here lost power for about 6.9 hours.
Union County, TN is served by 1 tracked utility.
No active power outages are currently reported in Union County.
No active NWS alerts for Union County right now.
Union County has been under 55 National Weather Service alerts recently — most recently a Special Weather Statement on August 22, 2026.
- Flood Watch ×12
- Special Weather Statement ×12
- Flood Advisory ×10
- Severe Thunderstorm Warning ×8
- Severe Thunderstorm Watch ×6
- Flash Flood Warning ×6
Latest Union County, TN outage updates
A running log of how this outage has changed — updated automatically as utilities report in.
- RESOLVED
Power restored after 1h 24m
- OUTAGE BEGAN
Outage began — 728 customers out (7.7% of the county)
- RESOLVED
Power restored after 3h 6m
- GREW
Outage grew to 1,120 customers out (12% of the county)
- GREW
Outage grew to 1,120 customers out (12% of the county)
- GREW
Outage grew to 1,120 customers out (12% of the county)
- GREW
Outage grew to 1,111 customers out (12% of the county)
- GREW
Outage grew to 1,111 customers out (12% of the county)
Hardest-hit cities in Union County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Union County went about 6.9 hours without power. Peak simultaneous outage on record reached 8,591 customers.
Worst year here was 2024 (peak 6,945 customers out) · decade average 8.4 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 171 | 7,503 | 2.3 |
| 2016 | 307 | 7,509 | 5.5 |
| 2017 | 320 | 2,618 | 8.5 |
| 2018 | 392 | 8,546 | 11.2 |
| 2019 | 461 | 8,582 | 11.3 |
| 2020 | 502 | 8,591 | 11.3 |
| 2021 | 538 | 5,289 | 7.5 |
| 2022 | 535 | 3,375 | 7.9 |
| 2023 | 552 | 2,862 | 6.8 |
| 2024 | 557 | 6,945 | 12.8 |
| 2025 | 621 | 2,516 | 6.9 |
Relatively Low ice storms exposure · 8.4 hrs/yr of outages over the last decade.
FEMA rates this county’s social vulnerability relatively moderate — outages hit harder where communities are less able to respond and recover.
All hazard rankings →Power outages in Union County: FAQ
- How often does Union County, TN lose power?
- Based on EAGLE-I records, Union County, TN logged 621 distinct outage events in 2025, averaging about 6.9 hours without power per customer over the year.
- What was the worst power outage in Union County, TN?
- The largest tracked outage peaked at 8,591 customers without power, beginning March 13, 2020 and lasting about 30m.
- Is there a power outage in Union County, TN right now?
- No major outage is currently reported for Union County, TN. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Union County, TN?
- Tracked electric providers include KNOXVILLE UTILITIES BOARD.
Outages are tracked at the county level; these ZIP codes fall within Union County.
37779, 37807, 37866
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| KNOXVILLE UTILITIES BOARD | — | ODIN ✓ | — |
Machine-readable data: /api/v1/counties/47173 and /api/v1/counties/47173/history. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Tennessee customers).