massoutage

County annual report · FIPS 47179

2019 Washington County, TN Power Outage Report

In 2019, customers in Washington County, TN went without power for an average of 1.3 hours, a total of 116K customer-hours (Tennessee average 2.7 hours). That ranks 50th worst of 86 Tennessee counties and 2356th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
1.3
86,325 customers
Customer-hours out
116K
Peak customers out
8,195
Outages ≥1,000 out
12
0 of 10,000+ · 224 total
Longest outage
12d 8h
began October 30, 2019
Rank in state
50th/86
2356th of 2,945 US

Compared with TN, the US and 2018

Washington County, TN average hours without power per customer compared with state and national averages, 2019Washington County 1.3 hours, Tennessee average 2.7 hours, US average 4.7 hours, Washington County, 2018 0.1 hoursWashington CountyWashington County1.3hTennessee averageTennessee average2.7hUS averageUS average4.7hWashington County, 2018Washington County, 2…0.1h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

CSVJSON
Washington County, TN customer-hours without power by month, 2019Jan 0, Feb 80, Mar 21, Apr 39, May 1,339, Jun 16K, Jul 12K, Aug 19K, Sep 6,040, Oct 32K, Nov 19K, Dec 11K010k20k30k40k0Jan80Feb21Mar39Apr1,339May16KJun12KJul19KAug6,040Sep32KOct19KNov11KDec
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Customer-hours; October was the worst month.

Washington County year over year

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Washington County, TN: average hours without power per customer by year2015: 0.0h; 2016: 0.1h; 2017: 0.1h; 2018: 0.1h, coverage 55%; 2019: 1.3h, coverage 73%; 2020: 1.5h, coverage 73%; 2021: 1.6h, coverage 73%; 2022: 3.5h, coverage 75%; 2023: 5.2h; 2024: 7.2h; 2025: 2.0h024680%50%100%0.0h20150.1h20160.1h20170.1h20181.3h20191.5h20201.6h20213.5h20225.2h20237.2h20242.0h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Tennessee customers tracked each year.

Biggest outages in Washington County, 2019

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 30, 2019 12:30November 11, 2019 20:4512d 8h8,1959,617
2August 29, 2019 11:00August 30, 2019 18:301d 7h6,5184,249
3August 13, 2019 13:00August 20, 2019 23:307d 10h5,7195,025
4October 1, 2019 10:45October 11, 2019 20:4510d 10h4,61411K
5November 23, 2019 19:15November 24, 2019 18:4523h 30m4,57412K
6December 7, 2019 12:30December 16, 2019 16:159d 3h3,6415,003
7October 26, 2019 04:45October 26, 2019 13:008h 15m3,3198,994
8August 12, 2019 11:45August 12, 2019 23:4512h2,819885
9October 13, 2019 12:15October 13, 2019 15:153h2,796721
10July 31, 2019 12:15July 31, 2019 22:1510h1,9951,569

Outage episodes by size in 2019: 39 reached 100+ customers, 12 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 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Johnson City - (TN)201825 min0.2624 min0.26
Kingsport Power Co201814.9 hrs2.515.1 hrs1.94
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 2019; 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, 2019, 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/2019/tennessee/washington-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON