County annual report · FIPS 47001
2020 Anderson County, TN Power Outage Report
In 2020, customers in Anderson County, TN went without power for an average of 0.9 hours, a total of 37K customer-hours (Tennessee average 6.5 hours). That ranks 66th worst of 84 Tennessee counties and 2706th of 3,019 nationally.
Compared with TN, the US and 2019
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Anderson County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 13, 2020 04:15 | September 13, 2020 08:30 | 4h 15m | 2,847 | 1,107 |
| 2 | July 25, 2020 23:15 | July 26, 2020 01:45 | 2h 30m | 2,240 | 596 |
| 3 | April 16, 2020 14:45 | April 16, 2020 15:00 | 15m | 2,227 | 557 |
| 4 | August 15, 2020 07:15 | August 15, 2020 14:30 | 7h 15m | 1,345 | 411 |
| 5 | April 16, 2020 19:00 | April 16, 2020 19:15 | 15m | 1,243 | 311 |
| 6 | April 20, 2020 01:30 | April 20, 2020 03:15 | 1h 45m | 980 | 685 |
| 7 | August 26, 2020 17:00 | August 26, 2020 19:00 | 2h | 967 | 451 |
| 8 | June 17, 2020 13:30 | June 17, 2020 13:45 | 15m | 902 | 226 |
| 9 | July 3, 2020 22:15 | July 4, 2020 03:15 | 5h | 902 | 1,087 |
| 10 | July 6, 2020 19:30 | July 6, 2020 20:00 | 30m | 844 | 222 |
Outage episodes by size in 2020: 61 reached 100+ customers, 5 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 Anderson County reported on EIA Form 861 for 2020, 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 |
|---|---|---|---|---|---|
| Knoxville Utilities Board | 2020 | 4.7 hrs | 2.11 | 2.1 hrs | 1.65 |
| City of Clinton - (TN) | 2020 | 1.7 hrs | 1.29 | 1.7 hrs | 1.28 |
| City of Oak Ridge | - | - | - | - | - |
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 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 42,752 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. Anderson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Anderson County, TN annual power outage report, 2020, 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/2020/tennessee/anderson-county