County annual report · FIPS 47111
2021 Macon County, TN Power Outage Report
In 2021, customers in Macon County, TN went without power for an average of 5.3 hours, a total of 73K customer-hours (Tennessee average 3.7 hours). That ranks 22nd worst of 84 Tennessee counties and 1276th of 2,974 nationally.
Compared with TN, the US and 2020
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Macon County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 17, 2021 05:00 | October 17, 2021 06:00 | 1h | 11,027 | 11K |
| 2 | October 17, 2021 09:00 | October 17, 2021 10:00 | 1h | 11,027 | 11K |
| 3 | October 31, 2021 05:00 | October 31, 2021 07:00 | 2h | 9,816 | 20K |
| 4 | May 4, 2021 11:45 | May 4, 2021 15:15 | 3h 30m | 1,930 | 2,107 |
| 5 | November 15, 2021 19:00 | November 15, 2021 22:30 | 3h 30m | 1,701 | 1,919 |
| 6 | December 11, 2021 08:00 | December 11, 2021 21:45 | 13h 45m | 1,688 | 5,959 |
| 7 | May 9, 2021 20:00 | May 10, 2021 01:15 | 5h 15m | 1,674 | 3,444 |
| 8 | May 23, 2021 10:45 | May 23, 2021 16:30 | 5h 45m | 1,342 | 2,228 |
| 9 | April 21, 2021 12:30 | April 21, 2021 13:30 | 1h | 1,341 | 337 |
| 10 | September 19, 2021 23:15 | September 20, 2021 00:15 | 1h | 1,333 | 667 |
Outage episodes by size in 2021: 39 reached 100+ customers, 11 reached 1,000+ customers, 2 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 Macon County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| Tri-County Elec Member Corp (TN) | 2021 | 4.2 hrs | 2.98 | 3.9 hrs | 2.89 |
| Upper Cumberland E M C | 2021 | 14.4 hrs | - | 2.0 hrs | - |
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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 13,771 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. Macon County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Macon County, TN annual power outage report, 2021, 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/2021/tennessee/macon-county