County annual report · FIPS 47011
2023 Bradley County, TN Power Outage Report
In 2023, customers in Bradley County, TN went without power for an average of 5.1 hours, a total of 277K customer-hours (Tennessee average 11.1 hours). That ranks 46th worst of 83 Tennessee counties and 1464th of 2,977 nationally.
Compared with TN, the US and 2022
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Bradley County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 25, 2023 06:45 | March 26, 2023 07:30 | 1d | 3,689 | 22K |
| 2 | August 7, 2023 15:30 | August 9, 2023 20:45 | 2d 5h | 3,580 | 19K |
| 3 | March 3, 2023 13:45 | March 6, 2023 23:30 | 3d 9h | 3,179 | 65K |
| 4 | May 16, 2023 22:45 | May 17, 2023 06:30 | 7h 45m | 2,815 | 8,330 |
| 5 | January 12, 2023 17:00 | January 13, 2023 19:30 | 1d 2h | 2,464 | 7,121 |
| 6 | September 6, 2023 22:00 | September 7, 2023 00:15 | 2h 15m | 2,455 | 4,118 |
| 7 | June 14, 2023 12:15 | June 14, 2023 14:15 | 2h | 2,292 | 1,041 |
| 8 | October 14, 2023 03:30 | October 14, 2023 08:15 | 4h 45m | 2,199 | 8,257 |
| 9 | July 1, 2023 20:00 | July 3, 2023 18:00 | 1d 22h | 1,890 | 15K |
| 10 | December 26, 2023 06:45 | December 27, 2023 13:15 | 1d 6h | 1,534 | 12K |
Outage episodes by size in 2023: 91 reached 100+ customers, 32 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 Bradley County reported on EIA Form 861 for 2023, 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 |
|---|---|---|---|---|---|
| Volunteer Electric Coop | 2023 | 17.6 hrs | 6.37 | 7.2 hrs | 5.15 |
| City of Chattanooga - (TN) | 2021 | 73 min | 0.60 | 59 min | 0.53 |
| City of Cleveland - (TN) | 2023 | 56 min | 0.90 | 51 min | 0.87 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Tennessee's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 54,499 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. Bradley County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Bradley County, TN annual power outage report, 2023, 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/2023/tennessee/bradley-county