County annual report · FIPS 47031
2020 Coffee County, TN Power Outage Report
In 2020, customers in Coffee County, TN went without power for an average of 2.9 hours, a total of 96K customer-hours (Tennessee average 6.5 hours). That ranks 42nd worst of 84 Tennessee counties and 1903rd 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 Coffee 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 | March 29, 2020 07:00 | March 29, 2020 23:30 | 16h 30m | 8,346 | 16K |
| 2 | May 3, 2020 22:30 | May 6, 2020 14:30 | 2d 16h | 6,256 | 58K |
| 3 | April 18, 2020 03:00 | April 18, 2020 03:45 | 45m | 1,128 | 846 |
| 4 | May 3, 2020 18:00 | May 3, 2020 19:00 | 1h | 1,085 | 554 |
| 5 | August 10, 2020 14:30 | August 10, 2020 16:30 | 2h | 945 | 1,176 |
| 6 | October 29, 2020 02:15 | October 29, 2020 03:15 | 1h | 684 | 513 |
| 7 | May 18, 2020 21:30 | May 18, 2020 22:45 | 1h 15m | 672 | 402 |
| 8 | April 13, 2020 08:45 | April 13, 2020 12:30 | 3h 45m | 659 | 850 |
| 9 | June 29, 2020 01:15 | June 29, 2020 06:30 | 5h 15m | 643 | 1,430 |
| 10 | May 1, 2020 04:30 | May 1, 2020 05:45 | 1h 15m | 604 | 706 |
Outage episodes by size in 2020: 35 reached 100+ customers, 4 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 Coffee 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 |
| Sequachee Valley Electric Coop | 2020 | 6.1 hrs | 3.74 | 2.9 hrs | 2.50 |
| Tullahoma Board-Public Utils | 2020 | 74 min | 1.23 | 29 min | 0.76 |
| Caney Fork Electric Coop, Inc | - | - | - | - | - |
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 ÷ 33,033 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. Coffee County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Coffee 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/coffee-county