County annual report · FIPS 47053
2021 Gibson County, TN Power Outage Report
In 2021, customers in Gibson County, TN went without power for an average of 1.6 hours, a total of 45K customer-hours (Tennessee average 3.7 hours). That ranks 55th worst of 84 Tennessee counties and 2406th of 2,974 nationally.
Compared with TN, the US and 2020
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Gibson County, 2021
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 1, 2021 23:30 | March 1, 2021 23:45 | 15m | 3,269 | 817 |
| 2 | May 6, 2021 20:45 | May 7, 2021 20:00 | 23h 15m | 2,731 | 7,551 |
| 3 | June 10, 2021 11:45 | June 10, 2021 12:45 | 1h | 1,278 | 1,278 |
| 4 | March 25, 2021 13:00 | March 25, 2021 14:45 | 1h 45m | 1,266 | 637 |
| 5 | August 1, 2021 03:30 | August 1, 2021 23:00 | 19h 30m | 1,080 | 7,115 |
| 6 | March 28, 2021 03:00 | March 28, 2021 07:45 | 4h 45m | 926 | 1,252 |
| 7 | July 9, 2021 03:45 | July 9, 2021 06:45 | 3h | 912 | 937 |
| 8 | June 13, 2021 00:30 | June 13, 2021 03:30 | 3h | 908 | 708 |
| 9 | July 7, 2021 11:00 | July 7, 2021 12:30 | 1h 30m | 882 | 665 |
| 10 | November 19, 2021 20:15 | November 19, 2021 22:30 | 2h 15m | 879 | 244 |
Outage episodes by size in 2021: 40 reached 100+ customers, 5 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 Gibson County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| Gibson Electric Members Corp | 2021 | 16.0 hrs | 3.56 | 2.2 hrs | 3.56 |
| City of Milan - (TN) | 2021 | 3.8 hrs | 1.94 | - | - |
| Weakley County Mun Elec Sys | 2021 | 3.6 hrs | 8.31 | 3.6 hrs | 3.33 |
| City of Humboldt | - | - | - | - | - |
| City of Trenton - (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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 28,041 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. Gibson County has data for 2016–2025.
Cite this report
MassOutage (massoutage.com), Gibson County, TN annual power outage report, 2021, 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/2021/tennessee/gibson-county