County annual report · FIPS 47163
2015 Sullivan County, TN Power Outage Report
In 2015, customers in Sullivan County, TN went without power for an average of 2.2 hours, a total of 155K customer-hours (Tennessee average 2.4 hours). That ranks 18th worst of 50 Tennessee counties and 1151st of 2,484 nationally.
Compared with TN, the US
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Sullivan County, 2015
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 21, 2015 20:15 | June 22, 2015 20:00 | 23h 45m | 2,843 | 7,524 |
| 2 | June 2, 2015 19:00 | June 3, 2015 02:45 | 7h 45m | 2,399 | 5,362 |
| 3 | June 8, 2015 22:15 | June 9, 2015 21:30 | 23h 15m | 2,194 | 7,741 |
| 4 | December 3, 2015 22:15 | December 3, 2015 22:30 | 15m | 1,958 | 490 |
| 5 | April 7, 2015 10:00 | April 7, 2015 15:45 | 5h 45m | 1,644 | 819 |
| 6 | July 23, 2015 02:30 | July 23, 2015 04:00 | 1h 30m | 1,419 | 2,127 |
| 7 | June 19, 2015 02:45 | June 19, 2015 22:30 | 19h 45m | 1,412 | 15K |
| 8 | April 1, 2015 17:15 | April 1, 2015 20:00 | 2h 45m | 1,406 | 1,283 |
| 9 | June 2, 2015 13:00 | June 2, 2015 18:15 | 5h 15m | 1,377 | 1,908 |
| 10 | February 11, 2015 14:30 | February 11, 2015 22:45 | 8h 15m | 1,350 | 3,892 |
Outage episodes by size in 2015: 102 reached 100+ customers, 22 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 Sullivan County reported on EIA Form 861 for 2015, 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 |
|---|---|---|---|---|---|
| Appalachian Power Co | 2015 | 11.7 hrs | 2.41 | 7.9 hrs | 2.21 |
| Johnson City - (TN) | 2015 | 39 min | 0.40 | 35 min | 0.36 |
| Kingsport Power Co | 2015 | 3.3 hrs | 1.38 | 3.3 hrs | 1.38 |
| City of Bristol - (TN) | 2015 | 35 min | 0.47 | 32 min | 0.47 |
| City of Elizabethton - (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 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 69,352 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. Sullivan County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sullivan County, TN annual power outage report, 2015, 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/2015/tennessee/sullivan-county