County annual report · FIPS 47063
2023 Hamblen County, TN Power Outage Report
In 2023, customers in Hamblen County, TN went without power for an average of 2.1 hours, a total of 80K customer-hours (Tennessee average 11.1 hours). That ranks 63rd worst of 83 Tennessee counties and 2253rd 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 Hamblen 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 | December 26, 2023 13:45 | December 26, 2023 14:45 | 1h | 2,265 | 1,699 |
| 2 | April 1, 2023 16:30 | April 3, 2023 20:00 | 2d 3h | 1,831 | 15K |
| 3 | May 7, 2023 20:15 | May 8, 2023 05:15 | 9h | 1,566 | 4,670 |
| 4 | July 29, 2023 19:45 | August 1, 2023 17:00 | 2d 21h | 1,290 | 4,880 |
| 5 | January 8, 2023 16:30 | January 8, 2023 19:45 | 3h 15m | 1,110 | 1,449 |
| 6 | January 8, 2023 21:45 | January 8, 2023 22:00 | 15m | 1,103 | 276 |
| 7 | January 9, 2023 10:45 | January 9, 2023 13:00 | 2h 15m | 1,040 | 2,080 |
| 8 | April 9, 2023 12:15 | April 9, 2023 13:30 | 1h 15m | 910 | 485 |
| 9 | September 25, 2023 22:30 | September 25, 2023 23:00 | 30m | 802 | 201 |
| 10 | January 5, 2023 13:30 | January 5, 2023 22:15 | 8h 45m | 770 | 290 |
Outage episodes by size in 2023: 50 reached 100+ customers, 7 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 Hamblen 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 |
|---|---|---|---|---|---|
| Appalachian Electric Coop | 2023 | 10.4 hrs | 3.67 | 3.2 hrs | 2.86 |
| Holston Electric Coop, Inc | 2023 | 3.9 hrs | 3.07 | 2.9 hrs | 2.40 |
| City of Morristown - (TN) | 2023 | 2.4 hrs | 2.00 | 56 min | 1.05 |
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 ÷ 38,657 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. Hamblen County has data for 2016–2025.
Cite this report
MassOutage (massoutage.com), Hamblen 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/hamblen-county