County annual report · FIPS 47015
2021 Cannon County, TN Power Outage Report
In 2021, customers in Cannon County, TN went without power for an average of 5.0 hours, a total of 29K customer-hours (Tennessee average 3.7 hours). That ranks 25th worst of 84 Tennessee counties and 1329th of 2,974 nationally.
Compared with TN, the US and 2020
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Cannon County, 2021
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 14, 2021 13:30 | July 14, 2021 16:45 | 3h 15m | 2,328 | 1,064 |
| 2 | February 15, 2021 19:00 | February 20, 2021 22:45 | 5d 3h | 1,809 | 21K |
| 3 | April 13, 2021 04:45 | April 13, 2021 09:30 | 4h 45m | 1,733 | 1,345 |
| 4 | September 14, 2021 21:00 | September 14, 2021 22:15 | 1h 15m | 889 | 889 |
| 5 | September 25, 2021 19:00 | September 25, 2021 19:15 | 15m | 889 | 222 |
| 6 | October 31, 2021 16:45 | October 31, 2021 17:15 | 30m | 888 | 222 |
| 7 | April 22, 2021 03:45 | April 22, 2021 04:45 | 1h | 450 | 450 |
| 8 | April 24, 2021 15:45 | April 24, 2021 17:30 | 1h 45m | 270 | 212 |
| 9 | December 15, 2021 15:00 | December 15, 2021 17:45 | 2h 45m | 268 | 584 |
| 10 | September 18, 2021 13:00 | September 18, 2021 16:45 | 3h 45m | 88 | 225 |
Outage episodes by size in 2021: 9 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 Cannon County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| Middle Tennessee E M C | 2021 | 65 min | 1.00 | 55 min | 0.96 |
| Caney Fork Electric Coop, Inc | - | - | - | - | - |
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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 5,893 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. Cannon County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cannon County, TN annual power outage report, 2021, 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/2021/tennessee/cannon-county