County annual report · FIPS 47139
2019 Polk County, TN Power Outage Report
In 2019, customers in Polk County, TN went without power for an average of 3.4 hours, a total of 33K customer-hours (Tennessee average 2.7 hours). That ranks 23rd worst of 86 Tennessee counties and 1496th of 2,945 nationally.
Compared with TN, the US and 2018
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Polk County, 2019
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 18, 2019 14:45 | May 18, 2019 18:45 | 4h | 1,170 | 407 |
| 2 | May 9, 2019 21:00 | May 10, 2019 01:00 | 4h | 1,167 | 2,124 |
| 3 | December 29, 2019 21:15 | December 31, 2019 00:15 | 1d 3h | 1,063 | 4,018 |
| 4 | June 22, 2019 01:00 | June 22, 2019 21:00 | 20h | 682 | 3,104 |
| 5 | September 10, 2019 12:00 | September 10, 2019 15:15 | 3h 15m | 561 | 146 |
| 6 | August 7, 2019 21:45 | August 8, 2019 05:00 | 7h 15m | 550 | 1,053 |
| 7 | August 21, 2019 03:30 | August 21, 2019 04:15 | 45m | 543 | 139 |
| 8 | October 30, 2019 14:30 | October 30, 2019 20:00 | 5h 30m | 477 | 592 |
| 9 | August 2, 2019 20:15 | August 2, 2019 22:30 | 2h 15m | 447 | 894 |
| 10 | May 11, 2019 12:15 | May 12, 2019 04:30 | 16h 15m | 407 | 1,587 |
Outage episodes by size in 2019: 36 reached 100+ customers, 3 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 Polk County reported on EIA Form 861 for 2019, 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 |
|---|---|---|---|---|---|
| Fort Loudoun Electric Coop | 2018 | 4.9 hrs | 2.60 | 4.4 hrs | 2.48 |
| Volunteer Electric Coop | - | - | - | - | - |
| Tri-State Electric Member Corp | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 73% of Tennessee's customers in 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 9,762 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. Polk County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Polk County, TN annual power outage report, 2019, 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/2019/tennessee/polk-county