County annual report · FIPS 47159
2018 Smith County, TN Power Outage Report
In 2018, customers in Smith County, TN went without power for an average of 5.2 hours, a total of 44K customer-hours (Tennessee average 2.1 hours). That ranks 12th worst of 71 Tennessee counties and 1019th of 2,798 nationally.
Compared with TN, the US and 2017
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Smith County, 2018
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 2, 2018 20:00 | January 2, 2018 21:15 | 1h 15m | 3,378 | 4,223 |
| 2 | January 2, 2018 22:15 | January 2, 2018 22:30 | 15m | 3,378 | 845 |
| 3 | September 30, 2018 04:45 | September 30, 2018 07:00 | 2h 15m | 3,368 | 7,578 |
| 4 | October 15, 2018 15:15 | October 15, 2018 15:30 | 15m | 3,364 | 841 |
| 5 | June 12, 2018 20:45 | June 12, 2018 21:00 | 15m | 1,401 | 350 |
| 6 | November 12, 2018 16:30 | November 12, 2018 18:00 | 1h 30m | 1,400 | 2,100 |
| 7 | June 19, 2018 23:15 | June 20, 2018 00:00 | 45m | 1,399 | 1,049 |
| 8 | April 1, 2018 02:30 | April 3, 2018 12:30 | 2d 10h | 437 | 25K |
| 9 | September 1, 2018 06:00 | September 1, 2018 07:45 | 1h 45m | 398 | 697 |
| 10 | May 21, 2018 01:30 | May 21, 2018 02:00 | 30m | 396 | 198 |
Outage episodes by size in 2018: 13 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 Smith County reported on EIA Form 861 for 2018, 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 |
|---|---|---|---|---|---|
| Tri-County Elec Member Corp (TN) | 2018 | 4.7 hrs | 3.38 | 3.3 hrs | 3.12 |
| Upper Cumberland E M C | 2018 | 2.5 hrs | - | 2.4 hrs | - |
| Middle Tennessee E M C | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 55% of Tennessee's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,588 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. Smith County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Smith County, TN annual power outage report, 2018, 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/2018/tennessee/smith-county