massoutage

County annual report · FIPS 47059

2023 Greene County, TN Power Outage Report

In 2023, customers in Greene County, TN went without power for an average of 2.5 hours, a total of 98K customer-hours (Tennessee average 11.1 hours). That ranks 58th worst of 83 Tennessee counties and 2132nd of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
2.5
39,858 customers
Customer-hours out
98K
Peak customers out
4,144
Outages ≥1,000 out
20
0 of 10,000+ · 898 total
Longest outage
2d 7h
began September 15, 2023
Rank in state
58th/83
2132nd of 2,977 US

Compared with TN, the US and 2022

Greene County, TN average hours without power per customer compared with state and national averages, 2023Greene County 2.5 hours, Tennessee average 11.1 hours, US average 7.1 hours, Greene County, 2022 2.7 hoursGreene CountyGreene County2.5hTennessee averageTennessee average11.1hUS averageUS average7.1hGreene County, 2022Greene County, 20222.7h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

CSVJSON
Greene County, TN customer-hours without power by month, 2023Jan 12K, Feb 3,638, Mar 10K, Apr 16K, May 4,114, Jun 5,064, Jul 12K, Aug 16K, Sep 9,946, Oct 2,839, Nov 4,273, Dec 1,76105k10k15k20k12KJan3,638Feb10KMar16KApr4,114May5,064Jun12KJul16KAug9,946Sep2,839Oct4,273Nov1,761Dec
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Customer-hours; August was the worst month.

Greene County year over year

CSVJSON
Greene County, TN: average hours without power per customer by year2015: no data; 2016: 0.0h; 2017: 0.0h; 2018: 0.3h, coverage 55%; 2019: 0.8h, coverage 73%; 2020: 2.2h, coverage 73%; 2021: 1.6h, coverage 73%; 2022: 2.7h, coverage 75%; 2023: 2.5h; 2024: 11.6h; 2025: 4.0h0510150%50%100%n/a20150.0h20160.0h20170.3h20180.8h20192.2h20201.6h20212.7h20222.5h202311.6h20244.0h2025
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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 Greene County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 16, 2023 06:00March 16, 2023 06:3030m4,1442,072
2July 29, 2023 21:00July 30, 2023 06:159h 15m3,3255,896
3August 3, 2023 06:45August 3, 2023 08:151h 30m3,1933,537
4August 7, 2023 13:30August 8, 2023 11:4522h 15m2,9434,478
5November 27, 2023 13:00November 27, 2023 22:009h2,0341,944
6March 25, 2023 04:30March 26, 2023 01:0020h 30m1,9136,286
7April 1, 2023 17:00April 2, 2023 10:3017h 30m1,7577,805
8January 12, 2023 13:15January 14, 2023 01:151d 12h1,7396,415
9April 17, 2023 12:15April 17, 2023 18:306h 15m1,5141,169
10April 18, 2023 08:30April 18, 2023 16:007h 30m1,5131,562

Outage episodes by size in 2023: 66 reached 100+ customers, 20 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 Greene County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Holston Electric Coop, Inc20233.9 hrs3.072.9 hrs2.40
Johnson City - (TN)20231.8 hrs1.0440 min0.67
City of Greeneville - (TN)20232.4 hrs1.9776 min1.25

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 ÷ 39,858 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. Greene County has data for 2016–2025.

Cite this report

MassOutage (massoutage.com), Greene 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/greene-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON