County annual report · FIPS 47115
2023 Marion County, TN Power Outage Report
In 2023, customers in Marion County, TN went without power for an average of 5.3 hours, a total of 83K customer-hours (Tennessee average 11.1 hours). That ranks 42nd worst of 83 Tennessee counties and 1418th 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 Marion 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 | May 9, 2023 15:00 | May 11, 2023 23:00 | 2d 8h | 8,518 | 4,084 |
| 2 | February 27, 2023 21:45 | March 8, 2023 18:45 | 8d 21h | 2,345 | 29K |
| 3 | August 7, 2023 13:15 | September 17, 2023 19:15 | 41d 6h | 1,176 | 9,295 |
| 4 | November 30, 2023 16:00 | January 1, 2024 00:00 | 31d 8h | 617 | 4,700 |
| 5 | November 6, 2023 13:15 | November 6, 2023 18:15 | 5h | 615 | 312 |
| 6 | November 22, 2023 14:30 | November 23, 2023 12:15 | 21h 45m | 609 | 331 |
| 7 | November 21, 2023 13:45 | November 21, 2023 22:30 | 8h 45m | 507 | 3,136 |
| 8 | September 17, 2023 20:15 | October 12, 2023 20:30 | 25d | 466 | 11K |
| 9 | November 14, 2023 21:00 | November 16, 2023 15:00 | 1d 18h | 449 | 225 |
| 10 | July 20, 2023 18:15 | July 22, 2023 01:30 | 1d 7h | 396 | 2,305 |
Outage episodes by size in 2023: 25 reached 100+ customers, 3 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 Marion 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 |
|---|---|---|---|---|---|
| Duck River Elec Member Corp | 2023 | 5.1 hrs | 2.25 | 2.9 hrs | 1.76 |
| City of Chattanooga - (TN) | 2021 | 73 min | 0.60 | 59 min | 0.53 |
| Sequachee Valley Electric Coop | 2023 | 8.1 hrs | 3.42 | 3.8 hrs | 2.98 |
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 ÷ 15,729 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. Marion County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Marion 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/marion-county