County annual report · FIPS 47115
2020 Marion County, TN Power Outage Report
In 2020, customers in Marion County, TN went without power for an average of 1.0 hours, a total of 15K customer-hours (Tennessee average 6.5 hours). That ranks 65th worst of 84 Tennessee counties and 2673rd of 3,019 nationally.
Compared with TN, the US and 2019
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Marion County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 2, 2020 20:45 | June 3, 2020 13:00 | 16h 15m | 686 | 242 |
| 2 | August 12, 2020 02:45 | August 13, 2020 13:15 | 1d 10h | 540 | 641 |
| 3 | June 25, 2020 13:15 | June 25, 2020 14:30 | 1h 15m | 493 | 495 |
| 4 | October 21, 2020 07:15 | October 21, 2020 08:00 | 45m | 475 | 119 |
| 5 | December 11, 2020 15:00 | December 12, 2020 00:00 | 9h | 426 | 137 |
| 6 | July 21, 2020 01:00 | July 21, 2020 06:00 | 5h | 333 | 1,665 |
| 7 | April 12, 2020 20:00 | April 12, 2020 20:45 | 45m | 331 | 150 |
| 8 | June 23, 2020 17:30 | June 23, 2020 19:00 | 1h 30m | 176 | 49 |
| 9 | November 1, 2020 12:30 | November 2, 2020 05:30 | 17h | 127 | 179 |
| 10 | August 29, 2020 00:15 | August 30, 2020 01:30 | 1d 1h | 120 | 486 |
Outage episodes by size in 2020: 13 reached 100+ customers, 0 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 2020, 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 | 2020 | 6.1 hrs | 2.08 | 1.9 hrs | 1.49 |
| City of Chattanooga - (TN) | 2020 | 19.9 hrs | 1.47 | 86 min | 0.71 |
| Sequachee Valley Electric Coop | 2020 | 6.1 hrs | 3.74 | 2.9 hrs | 2.50 |
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 2020; 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, 2020, 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/2020/tennessee/marion-county