County annual report · FIPS 47173
2022 Union County, TN Power Outage Report
In 2022, customers in Union County, TN went without power for an average of 7.9 hours, a total of 75K customer-hours (Tennessee average 9.2 hours). That ranks 15th worst of 84 Tennessee counties and 918th 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 Union 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 | January 26, 2022 13:00 | January 26, 2022 13:15 | 15m | 3,375 | 844 |
| 2 | July 12, 2022 13:30 | July 12, 2022 17:45 | 4h 15m | 3,032 | 786 |
| 3 | December 23, 2022 06:00 | December 25, 2022 05:15 | 1d 23h | 2,803 | 10K |
| 4 | August 5, 2022 19:30 | August 7, 2022 06:15 | 1d 10h | 1,327 | 3,713 |
| 5 | June 3, 2022 06:30 | June 3, 2022 12:15 | 5h 45m | 1,257 | 948 |
| 6 | August 31, 2022 15:00 | August 31, 2022 21:15 | 6h 15m | 1,084 | 2,091 |
| 7 | April 13, 2022 23:45 | April 14, 2022 21:30 | 21h 45m | 1,048 | 2,188 |
| 8 | December 19, 2022 03:15 | December 19, 2022 07:30 | 4h 15m | 997 | 1,572 |
| 9 | November 29, 2022 17:15 | November 29, 2022 17:30 | 15m | 987 | 247 |
| 10 | May 6, 2022 18:00 | May 7, 2022 16:15 | 22h 15m | 838 | 3,565 |
Outage episodes by size in 2022: 51 reached 100+ customers, 7 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 Union 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 |
|---|---|---|---|---|---|
| Powell Valley Electric Coop | 2022 | 2.5 hrs | 2.45 | 2.3 hrs | 1.82 |
| Knoxville Utilities Board | 2022 | 4.2 hrs | 2.19 | 1.7 hrs | 1.31 |
| City of Clinton - (TN) | 2022 | 5.7 hrs | 4.71 | 2.2 hrs | 2.63 |
| City of LaFollette | 2022 | 10.1 hrs | 6.00 | 6.4 hrs | 5.00 |
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 ÷ 9,474 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. Union County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Union 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/union-county