County annual report · FIPS 47077
2025 Henderson County, TN Power Outage Report
In 2025, customers in Henderson County, TN went without power for an average of 0.4 hours, a total of 7,429 customer-hours (Tennessee average 4.3 hours). That ranks 69th worst of 81 Tennessee counties and 2884th 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 Henderson 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 | April 20, 2025 17:00 | April 20, 2025 21:15 | 4h 15m | 1,294 | 3,875 |
| 2 | September 24, 2025 13:15 | September 24, 2025 17:00 | 3h 45m | 511 | 849 |
| 3 | March 31, 2025 04:00 | March 31, 2025 11:30 | 7h 30m | 224 | 1,054 |
| 4 | March 5, 2025 12:15 | March 5, 2025 13:15 | 1h | 51 | 50 |
| 5 | April 7, 2025 10:30 | April 7, 2025 13:00 | 2h 30m | 48 | 37 |
| 6 | April 4, 2025 02:00 | April 4, 2025 13:15 | 11h 15m | 45 | 399 |
| 7 | April 5, 2025 20:45 | April 5, 2025 22:30 | 1h 45m | 45 | 67 |
| 8 | May 20, 2025 22:30 | May 21, 2025 01:15 | 2h 45m | 44 | 24 |
| 9 | February 2, 2025 16:45 | February 2, 2025 18:15 | 1h 30m | 37 | 13 |
| 10 | April 6, 2025 16:30 | April 6, 2025 18:00 | 1h 30m | 33 | 50 |
Outage episodes by size in 2025: 3 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 Henderson 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 |
|---|---|---|---|---|---|
| Southwest Tennessee E M C | 2023 | 11.7 hrs | 3.98 | 3.9 hrs | 2.67 |
| City of Lexington - (TN) | - | - | - | - | - |
| Carroll County - (TN) | - | - | - | - | - |
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 ÷ 16,597 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. Henderson County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Henderson 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/henderson-county