County annual report · FIPS 47093
2020 Knox County, TN Power Outage Report
In 2020, customers in Knox County, TN went without power for an average of 5.1 hours, a total of 1.2M customer-hours (Tennessee average 6.5 hours). That ranks 27th worst of 84 Tennessee counties and 1379th of 3,019 nationally.
Compared with TN, the US and 2019
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Knox County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 19, 2020 12:30 | June 20, 2020 01:45 | 13h 15m | 40,534 | 49K |
| 2 | May 27, 2020 12:00 | May 28, 2020 08:30 | 20h 30m | 34,684 | 19K |
| 3 | March 29, 2020 06:00 | April 1, 2020 01:15 | 2d 19h | 30,073 | 129K |
| 4 | April 29, 2020 10:15 | May 1, 2020 03:00 | 1d 16h | 26,954 | 46K |
| 5 | December 23, 2020 10:30 | December 29, 2020 07:00 | 5d 20h | 19,852 | 334K |
| 6 | October 26, 2020 09:00 | October 26, 2020 21:45 | 12h 45m | 19,680 | 11K |
| 7 | October 5, 2020 09:15 | October 6, 2020 09:30 | 1d | 14,752 | 3,923 |
| 8 | July 31, 2020 18:00 | August 2, 2020 07:45 | 1d 13h | 11,506 | 56K |
| 9 | February 3, 2020 13:15 | February 3, 2020 22:30 | 9h 15m | 11,245 | 17K |
| 10 | June 29, 2020 19:45 | June 30, 2020 23:15 | 1d 3h | 9,986 | 35K |
Outage episodes by size in 2020: 222 reached 100+ customers, 102 reached 1,000+ customers, 9 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 2020, 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 | 2020 | 4.7 hrs | 2.11 | 2.1 hrs | 1.65 |
| City of Clinton - (TN) | 2020 | 1.7 hrs | 1.29 | 1.7 hrs | 1.28 |
| Fort Loudoun Electric Coop | 2020 | 7.7 hrs | 2.92 | 6.7 hrs | 2.82 |
| City of Lenoir - (TN) | 2020 | 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 73% of Tennessee's customers in 2020; 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, 2020, 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/2020/tennessee/knox-county