massoutage

County annual report · FIPS 47109

2018 McNairy County, TN Power Outage Report

In 2018, customers in McNairy County, TN went without power for an average of 0.0 hours, a total of 6 customer-hours (Tennessee average 2.1 hours). That ranks 69th worst of 71 Tennessee counties and 2781st of 2,791 nationally.

Summary data CSVJSON
Avg hrs / customer
0.0
15,967 customers
Customer-hours out
6
Peak customers out
14
Outages ≥1,000 out
0
0 of 10,000+ · 4 total
Longest outage
2h 45m
began November 18, 2018
Rank in state
69th/71
2781st of 2,791 US

Compared with TN, the US and 2017

McNairy County, TN average hours without power per customer compared with state and national averages, 2018McNairy County 0.0 hours, Tennessee average 2.1 hours, US average 5.3 hours, McNairy County, 2017 0.0 hoursMcNairy CountyMcNairy County0.0hTennessee averageTennessee average2.1hUS averageUS average5.3hMcNairy County, 2017McNairy County, 20170.0h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

CSVJSON
McNairy County, TN customer-hours without power by month, 2018Jan 0, Feb 0, Mar 4, Apr 0, May 1, Jun 0, Jul 0, Aug 0, Sep 0, Oct 0, Nov 2, Dec 0012340Jan0Feb4Mar0Apr1May0Jun0Jul0Aug0Sep0Oct2Nov0Dec
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Customer-hours; March was the worst month.

McNairy County year over year

CSVJSON
McNairy County, TN: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.0h; 2018: 0.0h, coverage 55%; 2019: 0.0h, coverage 73%; 2020: no data; 2021: no data; 2022: no data; 2023: no data; 2024: no data; 2025: no data00000%50%100%n/a2015n/a20160.0h20170.0h20180.0h2019n/a2020n/a2021n/a2022n/a2023n/a2024n/a2025
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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 McNairy County, 2018

The 4 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 7, 2018 19:15March 7, 2018 19:3015m144
2May 25, 2018 19:00May 25, 2018 19:3030m11
3June 10, 2018 14:15June 10, 2018 14:3015m10
4November 18, 2018 15:00November 18, 2018 17:452h 45m12

Outage episodes by size in 2018: 0 reached 100+ customers, 0 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 McNairy County reported on EIA Form 861 for 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Southwest Tennessee E M C-----
Pickwick Electric Coop-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 55% of Tennessee's customers in 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 15,967 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. McNairy County has data for 2017–2019.

Cite this report

MassOutage (massoutage.com), McNairy County, TN annual power outage report, 2018, data as of Oct 14, 2026 13:35 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/). https://massoutage.com/reports/2018/tennessee/mcnairy-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON
McNairy County by year:20192017
Live outages in McNairy County2018 Tennessee report2018 US report