County annual report · FIPS 47093
2023 Knox County, TN Power Outage Report
In 2023, customers in Knox County, TN went without power for an average of 8.3 hours, a total of 2.0M customer-hours (Tennessee average 11.1 hours). That ranks 25th worst of 83 Tennessee counties and 995th 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 Knox 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 | August 6, 2023 16:45 | August 12, 2023 09:45 | 5d 17h | 68,001 | 739K |
| 2 | March 23, 2023 01:30 | April 28, 2023 06:45 | 36d 5h | 27,000 | 360K |
| 3 | March 2, 2023 03:00 | March 6, 2023 03:45 | 4d | 20,927 | 178K |
| 4 | June 19, 2023 08:45 | July 8, 2023 13:15 | 19d 4h | 17,890 | 124K |
| 5 | May 28, 2023 02:30 | May 31, 2023 22:30 | 3d 20h | 12,097 | 37K |
| 6 | May 7, 2023 21:00 | May 11, 2023 10:00 | 3d 13h | 12,087 | 35K |
| 7 | December 1, 2023 12:45 | December 4, 2023 07:30 | 2d 18h | 9,605 | 23K |
| 8 | January 12, 2023 08:30 | January 14, 2023 02:30 | 1d 18h | 9,518 | 29K |
| 9 | August 12, 2023 11:15 | August 19, 2023 00:30 | 6d 13h | 8,611 | 42K |
| 10 | January 17, 2023 05:45 | January 20, 2023 05:15 | 2d 23h | 8,147 | 7,240 |
Outage episodes by size in 2023: 129 reached 100+ customers, 66 reached 1,000+ customers, 6 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 Knox 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 |
|---|---|---|---|---|---|
| Knoxville Utilities Board | 2023 | 6.0 hrs | 2.42 | 2.1 hrs | 1.50 |
| City of Clinton - (TN) | 2023 | 2.7 hrs | 1.55 | 83 min | 1.20 |
| Fort Loudoun Electric Coop | 2023 | 12.0 hrs | 3.91 | - | - |
| City of Lenoir - (TN) | 2021 | 2.6 hrs | 1.57 | 2.6 hrs | 1.57 |
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 ÷ 244,081 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. Knox County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Knox 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/knox-county