County annual report · FIPS 47155
2017 Sevier County, TN Power Outage Report
In 2017, customers in Sevier County, TN went without power for an average of 10.0 hours, a total of 712K customer-hours (Tennessee average 5.6 hours). That ranks 5th worst of 68 Tennessee counties and 539th 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 Sevier 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 03:00 | May 31, 2017 09:00 | 3d 6h | 19,970 | 182K |
| 2 | May 4, 2017 11:45 | May 8, 2017 02:45 | 3d 15h | 14,877 | 344K |
| 3 | May 1, 2017 07:00 | May 2, 2017 07:45 | 1d | 9,241 | 12K |
| 4 | May 24, 2017 10:30 | May 25, 2017 05:30 | 19h | 2,960 | 14K |
| 5 | December 23, 2017 06:15 | December 24, 2017 07:00 | 1d | 2,960 | 14K |
| 6 | October 31, 2017 13:00 | October 31, 2017 16:00 | 3h | 2,707 | 691 |
| 7 | June 18, 2017 00:00 | June 18, 2017 02:15 | 2h 15m | 2,395 | 602 |
| 8 | June 22, 2017 09:00 | June 23, 2017 00:45 | 15h 45m | 2,263 | 4,050 |
| 9 | April 30, 2017 11:30 | April 30, 2017 12:30 | 1h | 2,262 | 2,258 |
| 10 | June 23, 2017 08:45 | June 24, 2017 12:30 | 1d 3h | 2,182 | 4,138 |
Outage episodes by size in 2017: 123 reached 100+ customers, 27 reached 1,000+ customers, 2 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 Sevier 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 |
| Appalachian Electric Coop | 2017 | 5.0 hrs | 2.17 | 3.7 hrs | 2.00 |
| Sevier County Electric System | 2017 | 14.0 hrs | 2.93 | 6.3 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 n/a of Tennessee's customers in 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 71,320 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. Sevier County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sevier 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/sevier-county