County annual report · FIPS 47111
2018 Macon County, TN Power Outage Report
In 2018, customers in Macon County, TN went without power for an average of 7.8 hours, a total of 107K customer-hours (Tennessee average 2.1 hours). That ranks 7th worst of 71 Tennessee counties and 709th 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 Macon 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 | October 15, 2018 15:00 | October 15, 2018 15:30 | 30m | 7,031 | 1,758 |
| 2 | September 30, 2018 04:45 | September 30, 2018 07:00 | 2h 15m | 7,022 | 16K |
| 3 | March 25, 2018 19:00 | March 25, 2018 19:45 | 45m | 4,266 | 2,808 |
| 4 | March 25, 2018 03:15 | March 25, 2018 03:30 | 15m | 4,026 | 1,007 |
| 5 | May 20, 2018 23:30 | May 21, 2018 18:15 | 18h 45m | 3,097 | 7,027 |
| 6 | June 7, 2018 14:45 | June 7, 2018 15:45 | 1h | 2,767 | 1,903 |
| 7 | August 17, 2018 10:30 | August 17, 2018 21:15 | 10h 45m | 1,981 | 3,130 |
| 8 | June 27, 2018 20:00 | June 28, 2018 01:45 | 5h 45m | 1,278 | 1,147 |
| 9 | September 10, 2018 00:30 | September 10, 2018 04:30 | 4h | 1,266 | 5,064 |
| 10 | March 29, 2018 05:15 | March 29, 2018 07:30 | 2h 15m | 1,262 | 1,904 |
Outage episodes by size in 2018: 60 reached 100+ customers, 17 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 Macon 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 |
|---|---|---|---|---|---|
| Tri-County Elec Member Corp (TN) | 2018 | 4.7 hrs | 3.38 | 3.3 hrs | 3.12 |
| Upper Cumberland E M C | 2018 | 2.5 hrs | - | 2.4 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 55% of Tennessee's customers in 2018; 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, 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/macon-county