County annual report · FIPS 47077
2020 Henderson County, TN Power Outage Report
In 2020, customers in Henderson County, TN went without power for an average of 0.6 hours, a total of 9,850 customer-hours (Tennessee average 6.5 hours). That ranks 68th worst of 84 Tennessee counties and 2800th of 3,019 nationally.
Compared with TN, the US and 2019
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Henderson County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 11, 2020 13:00 | January 12, 2020 00:30 | 11h 30m | 1,212 | 5,016 |
| 2 | March 3, 2020 15:00 | March 3, 2020 15:45 | 45m | 1,210 | 908 |
| 3 | May 3, 2020 20:30 | May 4, 2020 00:30 | 4h | 483 | 652 |
| 4 | May 5, 2020 00:00 | May 5, 2020 12:45 | 12h 45m | 483 | 1,131 |
| 5 | June 5, 2020 20:15 | June 5, 2020 21:30 | 1h 15m | 482 | 362 |
| 6 | May 4, 2020 01:15 | May 4, 2020 08:00 | 6h 45m | 240 | 784 |
| 7 | June 23, 2020 00:15 | June 23, 2020 04:30 | 4h 15m | 177 | 444 |
| 8 | July 12, 2020 14:15 | July 12, 2020 16:45 | 2h 30m | 71 | 80 |
| 9 | September 1, 2020 08:45 | September 1, 2020 12:45 | 4h | 47 | 142 |
| 10 | March 20, 2020 17:30 | March 20, 2020 19:15 | 1h 45m | 44 | 77 |
Outage episodes by size in 2020: 7 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 2020, 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 73% of Tennessee's customers in 2020; 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, 2020, 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/2020/tennessee/henderson-county