County annual report · FIPS 47125
2023 Montgomery County, TN Power Outage Report
In 2023, customers in Montgomery County, TN went without power for an average of 11.0 hours, a total of 1.3M customer-hours (Tennessee average 11.1 hours). That ranks 19th worst of 83 Tennessee counties and 769th of 2,977 nationally.
Compared with TN, the US and 2022
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Montgomery County, 2023
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 3, 2023 09:30 | March 11, 2023 04:00 | 7d 18h | 48,425 | 939K |
| 2 | December 9, 2023 19:15 | December 13, 2023 01:15 | 3d 6h | 6,972 | 150K |
| 3 | July 18, 2023 19:45 | July 20, 2023 09:15 | 1d 13h | 6,419 | 9,254 |
| 4 | June 11, 2023 18:15 | June 12, 2023 10:00 | 15h 45m | 5,306 | 17K |
| 5 | January 3, 2023 00:45 | January 3, 2023 07:45 | 7h | 4,520 | 7,894 |
| 6 | June 18, 2023 11:45 | June 18, 2023 13:30 | 1h 45m | 4,171 | 1,045 |
| 7 | May 20, 2023 11:45 | May 21, 2023 01:30 | 13h 45m | 3,716 | 1,750 |
| 8 | January 9, 2023 16:30 | January 9, 2023 23:45 | 7h 15m | 3,686 | 5,426 |
| 9 | July 20, 2023 13:00 | July 21, 2023 06:30 | 17h 30m | 3,651 | 8,023 |
| 10 | January 19, 2023 15:00 | January 20, 2023 01:30 | 10h 30m | 3,413 | 5,148 |
Outage episodes by size in 2023: 126 reached 100+ customers, 46 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 Montgomery County reported on EIA Form 861 for 2023, 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 |
|---|---|---|---|---|---|
| City of Dickson | 2023 | 21.8 hrs | 3.83 | 6.1 hrs | 2.36 |
| City of Clarksville - (TN) | 2023 | 20.8 hrs | 2.83 | 1.8 hrs | 1.35 |
| 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 n/a of Tennessee's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 119,925 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. Montgomery County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Montgomery County, TN annual power outage report, 2023, 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/2023/tennessee/montgomery-county