County annual report · FIPS 47159
2025 Smith County, TN Power Outage Report
In 2025, customers in Smith County, TN went without power for an average of 0.4 hours, a total of 3,469 customer-hours (Tennessee average 4.3 hours). That ranks 70th worst of 81 Tennessee counties and 2890th 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 Smith 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 | December 31, 2025 20:15 | December 31, 2025 21:15 | 1h | 260 | 260 |
| 2 | December 19, 2025 01:45 | December 19, 2025 12:30 | 10h 45m | 182 | 825 |
| 3 | April 3, 2025 07:00 | April 3, 2025 12:00 | 5h | 149 | 415 |
| 4 | May 17, 2025 04:45 | May 17, 2025 09:15 | 4h 30m | 93 | 419 |
| 5 | February 16, 2025 11:00 | February 16, 2025 13:45 | 2h 45m | 92 | 253 |
| 6 | January 13, 2025 19:15 | January 13, 2025 19:45 | 30m | 89 | 45 |
| 7 | August 22, 2025 22:00 | August 22, 2025 22:15 | 15m | 87 | 22 |
| 8 | December 17, 2025 14:45 | December 17, 2025 15:15 | 30m | 86 | 37 |
| 9 | June 23, 2025 14:15 | June 23, 2025 15:30 | 1h 15m | 85 | 106 |
| 10 | April 5, 2025 23:15 | April 6, 2025 03:00 | 3h 45m | 84 | 170 |
Outage episodes by size in 2025: 3 reached 100+ customers, 0 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 Smith 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 |
| Middle Tennessee E M C | 2024 | 49 min | 0.93 | 42 min | 0.88 |
| 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 ÷ 8,588 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. Smith County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Smith 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/smith-county