County annual report · FIPS 47093
2017 Knox County, TN Power Outage Report
In 2017, customers in Knox County, TN went without power for an average of 3.7 hours, a total of 895K customer-hours (Tennessee average 5.6 hours). That ranks 15th worst of 68 Tennessee counties and 1173rd of 2,786 nationally.
Compared with TN, the US and 2016
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Knox County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 28, 2017 01:45 | May 31, 2017 06:30 | 3d 4h | 44,151 | 351K |
| 2 | November 18, 2017 15:45 | November 21, 2017 00:00 | 2d 8h | 17,101 | 63K |
| 3 | April 5, 2017 22:30 | April 7, 2017 22:45 | 2d | 11,332 | 65K |
| 4 | June 5, 2017 07:15 | June 6, 2017 06:30 | 23h 15m | 9,035 | 13K |
| 5 | August 15, 2017 05:45 | August 15, 2017 17:00 | 11h 15m | 7,485 | 6,425 |
| 6 | July 5, 2017 00:15 | July 6, 2017 22:45 | 1d 22h | 7,109 | 10K |
| 7 | May 1, 2017 10:45 | May 3, 2017 11:00 | 2d | 6,805 | 24K |
| 8 | September 1, 2017 07:15 | September 3, 2017 02:15 | 1d 19h | 6,568 | 7,787 |
| 9 | March 1, 2017 08:00 | March 2, 2017 09:30 | 1d 1h | 4,720 | 13K |
| 10 | October 10, 2017 13:45 | October 11, 2017 10:45 | 21h | 4,161 | 3,501 |
Outage episodes by size in 2017: 193 reached 100+ customers, 84 reached 1,000+ customers, 3 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 2017, 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 | 2017 | 4.1 hrs | 1.60 | 2.6 hrs | 1.44 |
| City of Clinton - (TN) | 2017 | 2.5 hrs | 1.38 | 1.9 hrs | 1.27 |
| Fort Loudoun Electric Coop | 2017 | 8.9 hrs | 3.37 | 7.2 hrs | 3.18 |
| 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 2017; 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, 2017, 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/2017/tennessee/knox-county