County annual report · FIPS 47179
2023 Washington County, TN Power Outage Report
In 2023, customers in Washington County, TN went without power for an average of 5.2 hours, a total of 448K customer-hours (Tennessee average 11.1 hours). That ranks 45th worst of 83 Tennessee counties and 1436th 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 Washington 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 | April 1, 2023 16:15 | April 3, 2023 22:30 | 2d 6h | 15,898 | 62K |
| 2 | January 12, 2023 16:15 | January 15, 2023 21:15 | 3d 5h | 15,626 | 51K |
| 3 | August 15, 2023 02:15 | August 18, 2023 19:15 | 3d 17h | 15,616 | 97K |
| 4 | March 25, 2023 09:00 | March 31, 2023 17:00 | 6d 8h | 13,074 | 62K |
| 5 | October 13, 2023 13:15 | October 13, 2023 19:45 | 6h 30m | 8,288 | 4,254 |
| 6 | March 3, 2023 10:15 | March 5, 2023 02:30 | 1d 16h | 5,408 | 24K |
| 7 | June 24, 2023 04:30 | June 24, 2023 14:45 | 10h 15m | 4,947 | 3,455 |
| 8 | July 14, 2023 05:00 | July 15, 2023 14:45 | 1d 9h | 4,711 | 6,742 |
| 9 | July 29, 2023 21:00 | July 31, 2023 09:15 | 1d 12h | 4,560 | 9,222 |
| 10 | November 29, 2023 07:15 | November 29, 2023 10:45 | 3h 30m | 3,972 | 2,012 |
Outage episodes by size in 2023: 120 reached 100+ customers, 31 reached 1,000+ customers, 4 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 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 |
|---|---|---|---|---|---|
| Johnson City - (TN) | 2023 | 1.8 hrs | 1.04 | 40 min | 0.67 |
| Kingsport Power Co | 2023 | 8.3 hrs | 2.07 | 3.2 hrs | 1.44 |
| 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 2023; 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, 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/washington-county