County annual report · FIPS 47165
2022 Sumner County, TN Power Outage Report
In 2022, customers in Sumner County, TN went without power for an average of 2.9 hours, a total of 247K customer-hours (Tennessee average 9.2 hours). That ranks 51st worst of 84 Tennessee counties and 1986th of 2,976 nationally.
Compared with TN, the US and 2021
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Sumner County, 2022
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 23, 2022 02:30 | December 26, 2022 00:15 | 2d 21h | 13,014 | 82K |
| 2 | July 20, 2022 00:45 | July 20, 2022 01:15 | 30m | 6,464 | 1,953 |
| 3 | June 17, 2022 15:15 | June 18, 2022 22:15 | 1d 7h | 5,258 | 9,912 |
| 4 | October 4, 2022 12:00 | October 4, 2022 15:45 | 3h 45m | 4,182 | 1,083 |
| 5 | September 24, 2022 11:30 | September 24, 2022 18:45 | 7h 15m | 3,624 | 5,561 |
| 6 | September 25, 2022 12:30 | September 25, 2022 14:30 | 2h | 3,548 | 3,293 |
| 7 | November 30, 2022 09:00 | December 5, 2022 21:15 | 5d 12h | 3,184 | 1,762 |
| 8 | October 12, 2022 18:00 | October 13, 2022 08:00 | 14h | 3,017 | 3,995 |
| 9 | July 18, 2022 12:15 | July 19, 2022 02:15 | 14h | 2,906 | 4,621 |
| 10 | March 2, 2022 18:15 | March 3, 2022 06:00 | 11h 45m | 2,898 | 852 |
Outage episodes by size in 2022: 120 reached 100+ customers, 42 reached 1,000+ customers, 1 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 Sumner County reported on EIA Form 861 for 2022, 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) | 2022 | 5.5 hrs | 4.22 | 4.1 hrs | 3.64 |
| Nashville Electric Service | 2022 | 7.9 hrs | 4.79 | 1.8 hrs | 1.51 |
| City of Gallatin - (TN) | 2022 | 37 min | 0.57 | 37 min | 0.57 |
| Cumberland Elec Member Corp | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 75% of Tennessee's customers in 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 85,061 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. Sumner County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sumner County, TN annual power outage report, 2022, 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/2022/tennessee/sumner-county