County annual report · FIPS 47173
2016 Union County, TN Power Outage Report
In 2016, customers in Union County, TN went without power for an average of 5.5 hours, a total of 52K customer-hours (Tennessee average 2.5 hours). That ranks 5th worst of 51 Tennessee counties and 610th of 2,391 nationally.
Compared with TN, the US and 2015
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Union County, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 31, 2016 06:00 | July 31, 2016 18:30 | 12h 30m | 7,509 | 9,309 |
| 2 | May 6, 2016 22:00 | May 7, 2016 09:30 | 11h 30m | 3,041 | 2,998 |
| 3 | September 26, 2016 22:45 | September 26, 2016 23:00 | 15m | 1,513 | 378 |
| 4 | February 24, 2016 13:15 | February 25, 2016 07:30 | 18h 15m | 1,304 | 3,062 |
| 5 | June 2, 2016 07:45 | June 2, 2016 10:30 | 2h 45m | 1,228 | 1,682 |
| 6 | August 28, 2016 19:45 | August 28, 2016 20:15 | 30m | 964 | 482 |
| 7 | May 27, 2016 20:15 | May 27, 2016 22:30 | 2h 15m | 925 | 2,080 |
| 8 | October 31, 2016 23:30 | November 1, 2016 09:15 | 9h 45m | 836 | 3,055 |
| 9 | November 30, 2016 17:00 | December 1, 2016 03:30 | 10h 30m | 805 | 1,955 |
| 10 | December 18, 2016 07:15 | December 18, 2016 21:45 | 14h 30m | 742 | 3,075 |
Outage episodes by size in 2016: 33 reached 100+ customers, 5 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 2016, 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 | 2016 | 2.6 hrs | 1.81 | 1.8 hrs | 1.60 |
| Knoxville Utilities Board | 2015 | 3.5 hrs | 1.60 | 2.0 hrs | 1.44 |
| City of Clinton - (TN) | 2016 | 1.7 hrs | 1.61 | 80 min | 1.43 |
| City of LaFollette | 2016 | 6.0 hrs | 3.85 | 4.0 hrs | 3.38 |
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 2016; 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, 2016, 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/2016/tennessee/union-county