County annual report · FIPS 47089
2022 Jefferson County, TN Power Outage Report
In 2022, customers in Jefferson County, TN went without power for an average of 4.9 hours, a total of 159K customer-hours (Tennessee average 9.2 hours). That ranks 39th worst of 84 Tennessee counties and 1443rd of 2,976 nationally.
Compared with TN, the US and 2021
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Jefferson County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 23, 2022 04:45 | December 24, 2022 08:15 | 1d 3h | 8,634 | 22K |
| 2 | January 3, 2022 08:00 | January 7, 2022 22:30 | 4d 14h | 4,458 | 27K |
| 3 | August 22, 2022 04:45 | August 22, 2022 06:15 | 1h 30m | 4,357 | 4,429 |
| 4 | December 24, 2022 09:00 | December 24, 2022 19:00 | 10h | 4,252 | 11K |
| 5 | June 17, 2022 15:30 | June 18, 2022 03:15 | 11h 45m | 3,769 | 11K |
| 6 | July 21, 2022 04:30 | July 22, 2022 00:30 | 20h | 3,021 | 12K |
| 7 | July 3, 2022 17:30 | July 4, 2022 06:15 | 12h 45m | 2,597 | 6,228 |
| 8 | May 6, 2022 21:00 | May 8, 2022 00:15 | 1d 3h | 2,105 | 4,284 |
| 9 | July 8, 2022 21:15 | July 9, 2022 22:30 | 1d 1h | 1,842 | 4,831 |
| 10 | October 2, 2022 18:30 | October 2, 2022 19:30 | 1h | 1,812 | 453 |
Outage episodes by size in 2022: 63 reached 100+ customers, 20 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 Jefferson County reported on EIA Form 861 for 2022, 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 | 2022 | 4.2 hrs | 2.19 | 1.7 hrs | 1.31 |
| Appalachian Electric Coop | 2022 | 7.0 hrs | 4.70 | 4.2 hrs | 2.93 |
| Holston Electric Coop, Inc | 2022 | 4.6 hrs | 5.19 | 2.8 hrs | 2.69 |
| Sevier County Electric System | 2022 | 30.9 hrs | 4.96 | 7.6 hrs | 2.13 |
| City of Newport - (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 75% of Tennessee's customers in 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 32,422 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. Jefferson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jefferson County, TN annual power outage report, 2022, 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/2022/tennessee/jefferson-county