County annual report · FIPS 47161
2021 Stewart County, TN Power Outage Report
In 2021, customers in Stewart County, TN went without power for an average of 16.3 hours, a total of 84K customer-hours (Tennessee average 3.7 hours). That ranks 2nd worst of 84 Tennessee counties and 525th 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 Stewart 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 7, 2021 20:45 | July 8, 2021 02:00 | 5h 15m | 5,235 | 9,996 |
| 2 | December 11, 2021 06:00 | December 12, 2021 19:15 | 1d 13h | 2,682 | 16K |
| 3 | June 13, 2021 03:15 | June 14, 2021 12:30 | 1d 9h | 2,306 | 7,357 |
| 4 | December 6, 2021 07:30 | December 6, 2021 20:00 | 12h 30m | 2,153 | 4,304 |
| 5 | October 28, 2021 18:15 | October 28, 2021 18:45 | 30m | 2,109 | 1,055 |
| 6 | May 4, 2021 09:45 | May 5, 2021 08:15 | 22h 30m | 1,912 | 17K |
| 7 | January 12, 2021 21:30 | January 12, 2021 23:30 | 2h | 1,491 | 397 |
| 8 | November 11, 2021 21:15 | November 11, 2021 22:15 | 1h | 1,481 | 655 |
| 9 | January 1, 2021 08:45 | January 1, 2021 10:15 | 1h 30m | 1,418 | 1,773 |
| 10 | November 3, 2021 13:00 | November 3, 2021 13:15 | 15m | 1,289 | 322 |
Outage episodes by size in 2021: 36 reached 100+ customers, 15 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 Stewart 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 |
|---|---|---|---|---|---|
| Cumberland Elec 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 73% of Tennessee's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 5,144 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. Stewart County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Stewart 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/). https://massoutage.com/reports/2021/tennessee/stewart-county