County annual report · FIPS 47171
2023 Unicoi County, TN Power Outage Report
In 2023, customers in Unicoi County, TN went without power for an average of 1.3 hours, a total of 16K customer-hours (Tennessee average 11.1 hours). That ranks 67th worst of 83 Tennessee counties and 2554th 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 Unicoi 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 | April 1, 2023 18:30 | April 2, 2023 12:45 | 18h 15m | 692 | 11K |
| 2 | August 7, 2023 19:15 | August 8, 2023 07:00 | 11h 45m | 301 | 2,140 |
| 3 | August 12, 2023 20:30 | August 13, 2023 09:45 | 13h 15m | 183 | 1,188 |
| 4 | June 30, 2023 15:45 | July 1, 2023 03:45 | 12h | 168 | 372 |
| 5 | July 29, 2023 22:00 | July 30, 2023 01:45 | 3h 45m | 88 | 175 |
| 6 | December 6, 2023 16:00 | December 6, 2023 19:15 | 3h 15m | 81 | 105 |
| 7 | December 4, 2023 21:45 | December 4, 2023 23:00 | 1h 15m | 73 | 91 |
| 8 | December 10, 2023 09:15 | December 10, 2023 13:15 | 4h | 53 | 137 |
| 9 | February 9, 2023 15:30 | February 9, 2023 19:45 | 4h 15m | 50 | 130 |
| 10 | March 25, 2023 07:00 | March 25, 2023 11:00 | 4h | 46 | 184 |
Outage episodes by size in 2023: 4 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 Unicoi 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 |
|---|---|---|---|---|---|
| Mountain Electric Coop, Inc | 2023 | 4.3 hrs | 3.04 | 4.3 hrs | 3.04 |
| French Broad Elec Member Corp | - | - | - | - | - |
| City of Elizabethton - (TN) | - | - | - | - | - |
| Town of Erwin - (TN) | - | - | - | - | - |
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 ÷ 12,248 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. Unicoi County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Unicoi 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/unicoi-county