County annual report · FIPS 47133
2025 Overton County, TN Power Outage Report
In 2025, customers in Overton County, TN went without power for an average of 4.1 hours, a total of 42K customer-hours (Tennessee average 4.3 hours). That ranks 39th worst of 81 Tennessee counties and 1726th of 3,000 nationally.
Compared with TN, the US and 2024
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Overton County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 5, 2025 03:00 | March 7, 2025 02:30 | 1d 23h | 1,172 | 13K |
| 2 | February 16, 2025 12:15 | February 16, 2025 19:45 | 7h 30m | 912 | 4,391 |
| 3 | April 7, 2025 04:15 | April 7, 2025 05:00 | 45m | 900 | 675 |
| 4 | March 16, 2025 04:00 | March 17, 2025 05:30 | 1d 1h | 886 | 11K |
| 5 | February 7, 2025 01:00 | February 7, 2025 19:00 | 18h | 417 | 4,389 |
| 6 | March 12, 2025 14:15 | March 12, 2025 15:15 | 1h | 367 | 367 |
| 7 | March 22, 2025 04:30 | March 22, 2025 06:45 | 2h 15m | 365 | 734 |
| 8 | May 3, 2025 19:15 | May 4, 2025 01:00 | 5h 45m | 365 | 1,414 |
| 9 | November 11, 2025 14:00 | November 11, 2025 14:15 | 15m | 364 | 91 |
| 10 | July 23, 2025 01:15 | July 23, 2025 03:45 | 2h 30m | 363 | 908 |
Outage episodes by size in 2025: 18 reached 100+ customers, 1 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Overton County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Tri-County Elec Member Corp (TN) | 2024 | 6.4 hrs | 3.96 | 4.0 hrs | 3.19 |
| Volunteer Electric Coop | 2024 | 11.4 hrs | 5.80 | 7.3 hrs | 5.02 |
| Upper Cumberland E M C | 2022 | 4.3 hrs | - | 2.2 hrs | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Tennessee's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 10,102 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Overton County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Overton County, TN annual power outage report, 2025, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2025/tennessee/overton-county