County annual report · FIPS 47139
2018 Polk County, TN Power Outage Report
In 2018, customers in Polk County, TN went without power for an average of 0.0 hours, a total of 57 customer-hours (Tennessee average 2.1 hours). That ranks 63rd worst of 71 Tennessee counties and 2750th 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 Polk County, 2018
The 8 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 11, 2018 16:30 | February 11, 2018 17:30 | 1h | 4 | 4 |
| 2 | February 12, 2018 14:00 | February 12, 2018 14:15 | 15m | 4 | 1 |
| 3 | April 8, 2018 04:45 | April 8, 2018 09:00 | 4h 15m | 4 | 17 |
| 4 | June 3, 2018 13:30 | June 3, 2018 13:45 | 15m | 4 | 1 |
| 5 | July 20, 2018 03:15 | July 20, 2018 08:00 | 4h 45m | 4 | 19 |
| 6 | October 20, 2018 11:15 | October 20, 2018 14:15 | 3h | 4 | 12 |
| 7 | November 28, 2018 16:45 | November 28, 2018 17:15 | 30m | 4 | 2 |
| 8 | May 3, 2018 13:00 | May 3, 2018 13:30 | 30m | 1 | 1 |
Outage episodes by size in 2018: 0 reached 100+ customers, 0 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 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 |
|---|---|---|---|---|---|
| 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 55% of Tennessee's customers in 2018; 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, 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/polk-county