County annual report · FIPS 47179
2024 Washington County, TN Power Outage Report
In 2024, customers in Washington County, TN went without power for an average of 7.2 hours, a total of 619K customer-hours (Tennessee average 4.8 hours). That ranks 22nd worst of 84 Tennessee counties and 1227th of 2,990 nationally.
Compared with TN, the US and 2023
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Washington County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 27, 2024 04:45 | October 7, 2024 11:15 | 10d 6h | 28,622 | 479K |
| 2 | February 13, 2024 03:00 | February 13, 2024 20:15 | 17h 15m | 11,339 | 23K |
| 3 | December 4, 2024 05:45 | December 5, 2024 00:30 | 18h 45m | 5,407 | 5,401 |
| 4 | January 5, 2024 15:15 | January 5, 2024 18:15 | 3h | 2,781 | 1,402 |
| 5 | July 29, 2024 10:00 | July 29, 2024 11:00 | 1h | 2,180 | 1,101 |
| 6 | March 7, 2024 13:15 | March 7, 2024 23:15 | 10h | 2,175 | 656 |
| 7 | January 12, 2024 11:45 | January 13, 2024 23:15 | 1d 11h | 1,884 | 20K |
| 8 | December 31, 2024 13:00 | January 1, 2025 00:00 | 11h | 1,418 | 1,396 |
| 9 | May 7, 2024 13:15 | May 7, 2024 22:15 | 9h | 1,321 | 1,286 |
| 10 | November 18, 2024 13:45 | November 18, 2024 23:00 | 9h 15m | 1,222 | 821 |
Outage episodes by size in 2024: 105 reached 100+ customers, 14 reached 1,000+ customers, 2 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 Washington County reported on EIA Form 861 for 2024, 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 |
|---|---|---|---|---|---|
| Johnson City - (TN) | 2024 | 11.0 hrs | 2.20 | 2.5 hrs | 1.24 |
| Kingsport Power Co | 2024 | 17.1 hrs | 1.80 | 2.7 hrs | 1.19 |
| City of Elizabethton - (TN) | - | - | - | - | - |
| Town of Erwin - (TN) | - | - | - | - | - |
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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 86,325 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. Washington County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Washington County, TN annual power outage report, 2024, 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/2024/tennessee/washington-county