massoutage

2018 Tennessee Power Outage Report

In 2018, the average Tennessee customer went without power for about 2.1 hours — the 35th worst of any US state that year, below the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
2.1
Peak customers out
35,223
Rank (worst state)
35th
Counties affected
20

Tennessee outages over the decade

Average hours without power per customer, 2018 highlighted.

2.4h20152.5h20165.6h20172.1h20182.7h20196.5h20203.7h20219.2h202211.1h20234.8h20244.3h2025

Hardest-hit Tennessee counties in 2018

By peak customers out during the year's worst event.

1Shelby County35,2232Knox County31,8113Sullivan County12,1174Sevier County11,0985Rutherford County9,1476Union County8,5467Macon County7,0318Robertson County6,8219Williamson County6,76110Montgomery County6,44611Hawkins County5,72212Tipton County5,40513Marshall County5,39414Wilson County5,25615Sumner County4,97416Crockett County4,83817Davidson County4,78818Giles County4,62719Coffee County4,60220Cannon County4,291

Biggest Tennessee outages of 2018

CountyBeganPeak customers out
Shelby CountyJune 18, 201835,223
Knox CountyApril 12, 201831,811
Knox CountyNovember 6, 201830,395
Knox CountyJanuary 9, 201825,037
Shelby CountyJuly 15, 201822,503
Knox CountyJuly 19, 201822,442
Shelby CountyJuly 10, 201818,700
Shelby CountySeptember 6, 201818,609
Knox CountyJune 26, 201816,489
Shelby CountyFebruary 13, 201814,020
Tennessee by year:20252024202320222021202020192017
Other states in 2018:NCVAWVMARIVT

Part of the 2018 US Power Outage Report. Source: DOE/ORNL EAGLE-I. “Avg hours per customer” is a SAIDI-like measure (outage customer-minutes ÷ tracked customers); coverage varies by year.