Tennessee Power Outage History
83 counties tracked, 2014–2025. County-level reliability grades and outage frequency below.
Counties tracked
83
Avg national percentile
65th
Higher = more reliable
Grade F counties
1
County rankings (worst to best)
| County | Grade | National percentile |
|---|---|---|
| Shelby County | F | 8th |
| Sevier County | D | 20th |
| Stewart County | D | 21st |
| Clay County | D | 24th |
| Pickett County | D | 26th |
| Meigs County | D | 29th |
| Henry County | D | 29th |
| Tipton County | D | 30th |
| Macon County | D | 31st |
| Union County | D | 32nd |
| Giles County | D | 33rd |
| Polk County | D | 33rd |
| Fentress County | D | 33rd |
| Davidson County | D | 35th |
| Fayette County | D | 36th |
| Hancock County | D | 36th |
| Grundy County | D | 37th |
| Moore County | D | 39th |
| Chester County | C | 40th |
| Hawkins County | C | 41st |
| Monroe County | C | 43rd |
| Crockett County | C | 43rd |
| Bledsoe County | C | 44th |
| Cheatham County | C | 46th |
| Bradley County | C | 47th |
| Grainger County | C | 49th |
| Cumberland County | C | 52nd |
| Knox County | C | 52nd |
| Blount County | C | 52nd |
| Trousdale County | C | 52nd |
| Robertson County | C | 53rd |
| Sullivan County | C | 55th |
| Lake County | C | 58th |
| Sumner County | C | 59th |
| Rhea County | B | 62nd |
| Obion County | B | 62nd |
| Claiborne County | B | 63rd |
| Cocke County | B | 63rd |
| Campbell County | B | 64th |
| Madison County | B | 65th |
| Montgomery County | B | 65th |
| Maury County | B | 68th |
| Loudon County | B | 69th |
| Coffee County | B | 69th |
| Jefferson County | B | 70th |
| Sequatchie County | B | 70th |
| Haywood County | B | 72nd |
| Lawrence County | B | 74th |
| Greene County | B | 76th |
| Marion County | B | 77th |
| Marshall County | B | 77th |
| Franklin County | B | 78th |
| Cannon County | B | 78th |
| McMinn County | B | 78th |
| Wilson County | B | 79th |
| Washington County | B | 79th |
| Roane County | A | 81st |
| Van Buren County | A | 81st |
| Bedford County | A | 83rd |
| White County | A | 84th |
| Hamilton County | A | 88th |
| Overton County | A | 88th |
| Gibson County | A | 88th |
| Hamblen County | A | 90th |
| Williamson County | A | 90th |
| Anderson County | A | 91st |
| Smith County | A | 92nd |
| Hardeman County | A | 92nd |
| Rutherford County | A | 92nd |
| Henderson County | A | 94th |
| Morgan County | A | 95th |
| Lauderdale County | A | 95th |
| Dyer County | A | 96th |
| Unicoi County | A | 96th |
| DeKalb County | A | 97th |
| Putnam County | A | 98th |
| Scott County | A | 98th |
| Jackson County | A | 99th |
| Lincoln County | A | 99th |
| Dickson County | A | 99th |
| Hickman County | A | 100th |
| Weakley County | A | 100th |
| Lewis County | A | 100th |