Estimate savings
Solar by state

Solar in Tennessee

Across Tennessee, homeowners pay about 10.3¢/kWh and a typical 6 kW system pays back in roughly 15.2 years after the 30% federal tax credit.

State avg rate 10.3¢/kWh
Typical payback 15.2yrs
Best Solar Value Fair

Counties in Tennessee

Lauderdale County
10.7¢/kWh · 8,616 kWh/yr
$918/yr 13.7 yr payback
Lake County
10.4¢/kWh · 8,604 kWh/yr
$897/yr 14 yr payback
Crockett County
10.4¢/kWh · 8,568 kWh/yr
$894/yr 14.1 yr payback
Tipton County
10.3¢/kWh · 8,586 kWh/yr
$886/yr 14.2 yr payback
Dyer County
10.7¢/kWh · 8,298 kWh/yr
$884/yr 14.3 yr payback
Giles County
10.6¢/kWh · 8,298 kWh/yr
$880/yr 14.3 yr payback
Haywood County
10.5¢/kWh · 8,406 kWh/yr
$882/yr 14.3 yr payback
Obion County
10.4¢/kWh · 8,460 kWh/yr
$882/yr 14.3 yr payback
Chester County
10.5¢/kWh · 8,358 kWh/yr
$877/yr 14.4 yr payback
Gibson County
10.4¢/kWh · 8,382 kWh/yr
$874/yr 14.4 yr payback
Marshall County
10.4¢/kWh · 8,388 kWh/yr
$869/yr 14.5 yr payback
Franklin County
10.4¢/kWh · 8,316 kWh/yr
$862/yr 14.6 yr payback
Lincoln County
10.3¢/kWh · 8,394 kWh/yr
$865/yr 14.6 yr payback
Madison County
10.5¢/kWh · 8,208 kWh/yr
$861/yr 14.6 yr payback
Moore County
10.4¢/kWh · 8,322 kWh/yr
$862/yr 14.6 yr payback
Coffee County
10.4¢/kWh · 8,292 kWh/yr
$859/yr 14.7 yr payback
Houston County
10.5¢/kWh · 8,130 kWh/yr
$856/yr 14.7 yr payback
Bedford County
10.1¢/kWh · 8,400 kWh/yr
$849/yr 14.8 yr payback
Benton County
10.7¢/kWh · 7,932 kWh/yr
$850/yr 14.8 yr payback
Hardeman County
10.6¢/kWh · 7,992 kWh/yr
$850/yr 14.8 yr payback
Hickman County
10.5¢/kWh · 8,076 kWh/yr
$850/yr 14.8 yr payback
Jefferson County
10.4¢/kWh · 8,184 kWh/yr
$854/yr 14.8 yr payback
Maury County
10.4¢/kWh · 8,226 kWh/yr
$852/yr 14.8 yr payback
Smith County
10.4¢/kWh · 8,184 kWh/yr
$849/yr 14.8 yr payback
Sumner County
10.3¢/kWh · 8,214 kWh/yr
$849/yr 14.8 yr payback
Humphreys County
10.5¢/kWh · 8,046 kWh/yr
$847/yr 14.9 yr payback
Lewis County
10.5¢/kWh · 8,046 kWh/yr
$847/yr 14.9 yr payback
Stewart County
10.3¢/kWh · 8,166 kWh/yr
$844/yr 14.9 yr payback
Trousdale County
10.2¢/kWh · 8,250 kWh/yr
$845/yr 14.9 yr payback
Unicoi County
10.9¢/kWh · 7,722 kWh/yr
$844/yr 14.9 yr payback
Washington County
10.3¢/kWh · 8,172 kWh/yr
$843/yr 14.9 yr payback
Cheatham County
10.3¢/kWh · 8,148 kWh/yr
$842/yr 15 yr payback
Lawrence County
10.1¢/kWh · 8,286 kWh/yr
$839/yr 15 yr payback
Robertson County
10.3¢/kWh · 8,130 kWh/yr
$840/yr 15 yr payback
Grainger County
10.4¢/kWh · 7,998 kWh/yr
$834/yr 15.1 yr payback
Hardin County
10.5¢/kWh · 7,998 kWh/yr
$837/yr 15.1 yr payback
Macon County
10.2¢/kWh · 8,160 kWh/yr
$836/yr 15.1 yr payback
Montgomery County
10.3¢/kWh · 8,052 kWh/yr
$832/yr 15.1 yr payback
Shelby County
9.9¢/kWh · 8,436 kWh/yr
$834/yr 15.1 yr payback
Wayne County
10.5¢/kWh · 7,992 kWh/yr
$837/yr 15.1 yr payback
Jackson County
10.4¢/kWh · 7,980 kWh/yr
$828/yr 15.2 yr payback
Marion County
10.3¢/kWh · 8,010 kWh/yr
$828/yr 15.2 yr payback
Meigs County
10.3¢/kWh · 8,028 kWh/yr
$828/yr 15.2 yr payback
Monroe County
10.4¢/kWh · 7,986 kWh/yr
$830/yr 15.2 yr payback
Perry County
10.5¢/kWh · 7,866 kWh/yr
$828/yr 15.2 yr payback
Sequatchie County
10.3¢/kWh · 8,034 kWh/yr
$831/yr 15.2 yr payback
Weakley County
9.8¢/kWh · 8,484 kWh/yr
$830/yr 15.2 yr payback
Davidson County
10.3¢/kWh · 8,028 kWh/yr
$824/yr 15.3 yr payback
Morgan County
10.7¢/kWh · 7,704 kWh/yr
$824/yr 15.3 yr payback
Polk County
10.3¢/kWh · 7,974 kWh/yr
$822/yr 15.3 yr payback
Williamson County
9.9¢/kWh · 8,316 kWh/yr
$826/yr 15.3 yr payback
Cannon County
9.9¢/kWh · 8,214 kWh/yr
$816/yr 15.4 yr payback
Carroll County
9.9¢/kWh · 8,292 kWh/yr
$820/yr 15.4 yr payback
Clay County
10.2¢/kWh · 7,986 kWh/yr
$818/yr 15.4 yr payback
Grundy County
10.3¢/kWh · 7,890 kWh/yr
$816/yr 15.4 yr payback
Hamilton County
10.1¢/kWh · 8,064 kWh/yr
$817/yr 15.4 yr payback
McMinn County
10.4¢/kWh · 7,878 kWh/yr
$820/yr 15.4 yr payback
McNairy County
10.4¢/kWh · 7,884 kWh/yr
$818/yr 15.4 yr payback
Putnam County
10.4¢/kWh · 7,890 kWh/yr
$819/yr 15.4 yr payback
Scott County
10.7¢/kWh · 7,662 kWh/yr
$820/yr 15.4 yr payback
Union County
10.3¢/kWh · 7,920 kWh/yr
$817/yr 15.4 yr payback
Bledsoe County
10.3¢/kWh · 7,872 kWh/yr
$814/yr 15.5 yr payback
Fayette County
9.7¢/kWh · 8,388 kWh/yr
$814/yr 15.5 yr payback
Hamblen County
10.1¢/kWh · 8,076 kWh/yr
$812/yr 15.5 yr payback
Hancock County
10.2¢/kWh · 7,968 kWh/yr
$814/yr 15.5 yr payback
Hawkins County
10.1¢/kWh · 8,070 kWh/yr
$811/yr 15.5 yr payback
Johnson County
10.3¢/kWh · 7,878 kWh/yr
$815/yr 15.5 yr payback
Knox County
10.0¢/kWh · 8,184 kWh/yr
$814/yr 15.5 yr payback
Rhea County
10.1¢/kWh · 8,016 kWh/yr
$812/yr 15.5 yr payback
Roane County
10.3¢/kWh · 7,854 kWh/yr
$811/yr 15.5 yr payback
Van Buren County
10.2¢/kWh · 7,980 kWh/yr
$812/yr 15.5 yr payback
Anderson County
10.3¢/kWh · 7,806 kWh/yr
$806/yr 15.6 yr payback
Carter County
10.3¢/kWh · 7,848 kWh/yr
$810/yr 15.6 yr payback
DeKalb County
10.2¢/kWh · 7,926 kWh/yr
$807/yr 15.6 yr payback
Overton County
10.4¢/kWh · 7,764 kWh/yr
$806/yr 15.6 yr payback
Rutherford County
9.9¢/kWh · 8,154 kWh/yr
$810/yr 15.6 yr payback
Wilson County
9.9¢/kWh · 8,130 kWh/yr
$807/yr 15.6 yr payback
Claiborne County
10.2¢/kWh · 7,848 kWh/yr
$802/yr 15.7 yr payback
Cocke County
10.1¢/kWh · 7,974 kWh/yr
$801/yr 15.7 yr payback
Henderson County
10.2¢/kWh · 7,878 kWh/yr
$803/yr 15.7 yr payback
Henry County
9.9¢/kWh · 8,130 kWh/yr
$802/yr 15.7 yr payback
Loudon County
10.1¢/kWh · 7,980 kWh/yr
$802/yr 15.7 yr payback
Sevier County
10.1¢/kWh · 7,968 kWh/yr
$805/yr 15.7 yr payback
Decatur County
10.2¢/kWh · 7,836 kWh/yr
$798/yr 15.8 yr payback
Dickson County
10.0¢/kWh · 7,962 kWh/yr
$799/yr 15.8 yr payback
Fentress County
10.3¢/kWh · 7,740 kWh/yr
$798/yr 15.8 yr payback
Sullivan County
9.7¢/kWh · 8,208 kWh/yr
$795/yr 15.8 yr payback
Warren County
9.9¢/kWh · 8,034 kWh/yr
$795/yr 15.8 yr payback
Campbell County
10.3¢/kWh · 7,662 kWh/yr
$791/yr 15.9 yr payback
Cumberland County
10.3¢/kWh · 7,686 kWh/yr
$792/yr 15.9 yr payback
Greene County
9.9¢/kWh · 8,040 kWh/yr
$794/yr 15.9 yr payback
Pickett County
10.3¢/kWh · 7,692 kWh/yr
$793/yr 15.9 yr payback
Blount County
10.1¢/kWh · 7,806 kWh/yr
$788/yr 16 yr payback
Bradley County
9.8¢/kWh · 8,016 kWh/yr
$787/yr 16 yr payback
White County
9.8¢/kWh · 7,812 kWh/yr
$769/yr 16.4 yr payback
Figures are modeled estimates from NREL PVWatts v8 + EIA. Not affiliated with NREL, DOE or EIA · not financial advice. Last updated June 2026.