County annual report · FIPS 47077
2018 Henderson County, TN Power Outage Report
In 2018, customers in Henderson County, TN went without power for an average of 0.4 hours, a total of 6,423 customer-hours (Tennessee average 2.1 hours). That ranks 42nd worst of 71 Tennessee counties and 2559th of 2,798 nationally.
Compared with TN, the US and 2017
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Henderson County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 23, 2018 15:30 | October 23, 2018 16:30 | 1h | 1,237 | 310 |
| 2 | March 30, 2018 05:15 | March 30, 2018 05:30 | 15m | 1,205 | 301 |
| 3 | October 5, 2018 22:45 | October 5, 2018 23:15 | 30m | 943 | 472 |
| 4 | September 23, 2018 21:30 | September 24, 2018 00:15 | 2h 45m | 339 | 593 |
| 5 | September 24, 2018 01:00 | September 24, 2018 01:45 | 45m | 339 | 254 |
| 6 | July 22, 2018 13:45 | July 22, 2018 15:15 | 1h 30m | 320 | 480 |
| 7 | September 22, 2018 12:15 | September 22, 2018 15:45 | 3h 30m | 318 | 727 |
| 8 | November 9, 2018 00:45 | November 9, 2018 03:15 | 2h 30m | 279 | 527 |
| 9 | September 6, 2018 15:30 | September 6, 2018 20:15 | 4h 45m | 278 | 1,321 |
| 10 | June 22, 2018 15:30 | June 22, 2018 15:45 | 15m | 125 | 31 |
Outage episodes by size in 2018: 10 reached 100+ customers, 2 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 2018, 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 | - | - | - | - | - |
| 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 55% of Tennessee's customers in 2018; 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, 2018, 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/). https://massoutage.com/reports/2018/tennessee/henderson-county