County annual report · FIPS 47093
2015 Knox County, TN Power Outage Report
In 2015, customers in Knox County, TN went without power for an average of 0.9 hours, a total of 231K customer-hours (Tennessee average 2.4 hours). That ranks 21st worst of 50 Tennessee counties and 1798th of 2,484 nationally.
Compared with TN, the US
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Knox County, 2015
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 13, 2015 03:45 | August 13, 2015 17:00 | 13h 15m | 10,989 | 12K |
| 2 | December 18, 2015 18:15 | December 18, 2015 22:00 | 3h 45m | 7,978 | 1,999 |
| 3 | August 20, 2015 01:15 | August 21, 2015 01:30 | 1d | 7,624 | 17K |
| 4 | September 26, 2015 15:45 | September 27, 2015 09:15 | 17h 30m | 6,994 | 9,793 |
| 5 | August 2, 2015 12:45 | August 2, 2015 21:45 | 9h | 5,163 | 5,176 |
| 6 | December 14, 2015 12:15 | December 15, 2015 02:15 | 14h | 4,432 | 10K |
| 7 | December 28, 2015 21:15 | December 29, 2015 09:45 | 12h 30m | 4,302 | 12K |
| 8 | October 27, 2015 07:30 | October 27, 2015 15:00 | 7h 30m | 4,144 | 9,233 |
| 9 | July 14, 2015 13:00 | July 15, 2015 21:00 | 1d 8h | 3,894 | 5,635 |
| 10 | August 29, 2015 11:00 | August 29, 2015 15:45 | 4h 45m | 3,708 | 6,783 |
Outage episodes by size in 2015: 100 reached 100+ customers, 39 reached 1,000+ customers, 1 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 2015, 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 | 2015 | 3.5 hrs | 1.60 | 2.0 hrs | 1.44 |
| City of Clinton - (TN) | 2015 | 2.0 hrs | 2.06 | 2.0 hrs | 2.06 |
| Fort Loudoun Electric Coop | 2015 | 36.0 hrs | 4.61 | 6.8 hrs | 3.55 |
| City of Lenoir - (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 2015; 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, 2015, 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/2015/tennessee/knox-county