County annual report · FIPS 47179
2020 Washington County, TN Power Outage Report
In 2020, customers in Washington County, TN went without power for an average of 1.5 hours, a total of 132K customer-hours (Tennessee average 6.5 hours). That ranks 60th worst of 84 Tennessee counties and 2455th of 3,019 nationally.
Compared with TN, the US and 2019
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Washington County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 22, 2020 08:45 | July 1, 2020 20:45 | 9d 12h | 8,241 | 8,680 |
| 2 | October 2, 2020 12:15 | October 7, 2020 07:15 | 4d 19h | 6,645 | 7,621 |
| 3 | July 24, 2020 13:15 | August 1, 2020 18:45 | 8d 5h | 4,771 | 18K |
| 4 | February 10, 2020 14:00 | February 14, 2020 21:15 | 4d 7h | 4,611 | 2,235 |
| 5 | April 13, 2020 08:00 | April 17, 2020 20:15 | 4d 12h | 2,372 | 6,509 |
| 6 | September 15, 2020 11:45 | September 23, 2020 19:15 | 8d 7h | 2,145 | 3,314 |
| 7 | June 4, 2020 20:00 | June 6, 2020 04:15 | 1d 8h | 2,005 | 2,941 |
| 8 | April 24, 2020 03:00 | April 27, 2020 20:00 | 3d 17h | 1,973 | 2,953 |
| 9 | January 11, 2020 13:30 | January 15, 2020 14:00 | 4d | 1,845 | 5,640 |
| 10 | November 23, 2020 21:30 | November 30, 2020 19:30 | 6d 22h | 1,554 | 2,823 |
Outage episodes by size in 2020: 52 reached 100+ customers, 16 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 Washington County reported on EIA Form 861 for 2020, 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) | 2020 | 30 min | 0.34 | 28 min | 0.33 |
| Kingsport Power Co | 2020 | 6.4 hrs | 1.67 | 4.5 hrs | 1.51 |
| 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 73% of Tennessee's customers in 2020; 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, 2020, 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/2020/tennessee/washington-county