County annual report · FIPS 47139
2023 Polk County, TN Power Outage Report
In 2023, customers in Polk County, TN went without power for an average of 18.4 hours, a total of 180K customer-hours (Tennessee average 11.1 hours). That ranks 8th worst of 83 Tennessee counties and 452nd of 2,977 nationally.
Compared with TN, the US and 2022
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Polk County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 14, 2023 03:30 | October 14, 2023 07:30 | 4h | 6,675 | 26K |
| 2 | March 3, 2023 16:45 | March 6, 2023 07:00 | 2d 14h | 3,708 | 71K |
| 3 | June 25, 2023 19:30 | June 26, 2023 22:00 | 1d 2h | 1,869 | 8,601 |
| 4 | March 25, 2023 07:30 | March 26, 2023 05:45 | 22h 15m | 1,838 | 14K |
| 5 | May 31, 2023 18:45 | May 31, 2023 20:00 | 1h 15m | 1,574 | 395 |
| 6 | April 22, 2023 01:45 | April 22, 2023 10:45 | 9h | 1,408 | 2,892 |
| 7 | July 1, 2023 21:30 | July 3, 2023 06:30 | 1d 9h | 1,131 | 5,590 |
| 8 | January 12, 2023 16:15 | January 13, 2023 06:00 | 13h 45m | 1,014 | 3,483 |
| 9 | April 1, 2023 04:00 | April 1, 2023 15:45 | 11h 45m | 918 | 5,637 |
| 10 | August 7, 2023 20:15 | August 8, 2023 03:45 | 7h 30m | 908 | 1,436 |
Outage episodes by size in 2023: 45 reached 100+ customers, 8 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 2023, 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 |
|---|---|---|---|---|---|
| Volunteer Electric Coop | 2023 | 17.6 hrs | 6.37 | 7.2 hrs | 5.15 |
| Fort Loudoun Electric Coop | 2023 | 12.0 hrs | 3.91 | - | - |
| 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 n/a of Tennessee's customers in 2023; 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, 2023, 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/2023/tennessee/polk-county