County annual report · FIPS 47009
2020 Blount County, TN Power Outage Report
In 2020, customers in Blount County, TN went without power for an average of 6.1 hours, a total of 432K customer-hours (Tennessee average 6.5 hours). That ranks 22nd worst of 84 Tennessee counties and 1220th 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 Blount 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 | July 5, 2020 18:45 | July 6, 2020 04:45 | 10h | 19,120 | 25K |
| 2 | March 29, 2020 10:00 | March 30, 2020 19:00 | 1d 9h | 7,309 | 36K |
| 3 | December 24, 2020 21:00 | December 27, 2020 23:15 | 3d 2h | 6,678 | 85K |
| 4 | January 11, 2020 09:15 | January 13, 2020 18:30 | 2d 9h | 6,431 | 40K |
| 5 | October 11, 2020 23:30 | October 12, 2020 03:45 | 4h 15m | 6,309 | 6,289 |
| 6 | January 1, 2020 10:15 | January 1, 2020 12:15 | 2h | 6,279 | 8,718 |
| 7 | September 10, 2020 12:45 | September 10, 2020 16:45 | 4h | 4,496 | 4,825 |
| 8 | November 20, 2020 09:15 | November 20, 2020 21:15 | 12h | 4,324 | 3,277 |
| 9 | June 6, 2020 04:15 | June 6, 2020 04:45 | 30m | 4,298 | 1,376 |
| 10 | July 30, 2020 22:00 | August 2, 2020 13:00 | 2d 15h | 3,760 | 24K |
Outage episodes by size in 2020: 169 reached 100+ customers, 43 reached 1,000+ customers, 1 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 Blount 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 |
| Fort Loudoun Electric Coop | 2020 | 7.7 hrs | 2.92 | 6.7 hrs | 2.82 |
| Sevier County Electric System | 2020 | 26.1 hrs | 3.60 | 5.4 hrs | 2.14 |
| Maryville Utilities | 2020 | 5.4 hrs | 2.35 | 66 min | 1.00 |
| City of Alcoa Utilities | - | - | - | - | - |
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 ÷ 70,519 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. Blount County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Blount 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/blount-county