County annual report · FIPS 47125
2018 Montgomery County, TN Power Outage Report
In 2018, customers in Montgomery County, TN went without power for an average of 1.2 hours, a total of 149K customer-hours (Tennessee average 2.1 hours). That ranks 28th worst of 71 Tennessee counties and 2212th 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 Montgomery 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 | May 29, 2018 21:15 | May 31, 2018 03:15 | 1d 6h | 6,446 | 28K |
| 2 | June 4, 2018 12:15 | June 4, 2018 12:30 | 15m | 4,588 | 1,147 |
| 3 | May 24, 2018 12:45 | May 24, 2018 15:30 | 2h 45m | 3,117 | 1,166 |
| 4 | April 14, 2018 15:45 | April 14, 2018 23:00 | 7h 15m | 2,862 | 11K |
| 5 | December 9, 2018 09:30 | December 10, 2018 06:45 | 21h 15m | 2,839 | 26K |
| 6 | October 28, 2018 16:00 | October 28, 2018 20:45 | 4h 45m | 2,708 | 2,773 |
| 7 | September 27, 2018 12:45 | September 27, 2018 15:00 | 2h 15m | 2,652 | 2,015 |
| 8 | April 23, 2018 03:30 | April 23, 2018 10:15 | 6h 45m | 2,646 | 2,167 |
| 9 | April 14, 2018 11:45 | April 14, 2018 15:00 | 3h 15m | 2,478 | 3,969 |
| 10 | June 13, 2018 10:15 | June 13, 2018 14:15 | 4h | 1,885 | 1,421 |
Outage episodes by size in 2018: 74 reached 100+ customers, 27 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 Montgomery 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 |
|---|---|---|---|---|---|
| City of Dickson | 2018 | 2.5 hrs | 1.59 | 2.5 hrs | 1.59 |
| Cumberland Elec Member Corp | - | - | - | - | - |
| City of Clarksville - (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 ÷ 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, 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/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2018/tennessee/montgomery-county