Solar cost & payback in Tennessee
Short answer
In Tennessee, a home with a $150/month electric bill needs about a 10.8 kW solar system — roughly $22,644 after the 30% federal tax credit, saving about $1,801/year and paying back in ~12.6 years.
System size
10.8 kW
Cost after 30% credit
$22,644
Payback
12.6 yrs
20-yr net savings
$23,362
Solar in Tennessee
Tennessee averages about 4.4 peak sun hours a day and pays roughly 13¢/kWh. The figures above assume a $150/month bill and ~$3/watt installed, with the 30% federal tax credit. A bigger bill needs a bigger system; shading, roof orientation, and net-metering rules change the payback.
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Frequently asked questions
How much do solar panels cost in Tennessee?
For a $150/month bill, about a 10.8 kW system — roughly $32,348 before incentives, or $22,644 after the 30% federal tax credit. Larger bills need bigger, pricier systems.
Is solar worth it in Tennessee?
Tennessee gets about 4.4 peak sun hours a day and pays ~13¢/kWh. A typical system pays back in ~12.6 years and saves about $23,362 net over 20 years — a longer payback, so run your own numbers.
What is the solar tax credit in Tennessee?
The 30% federal Residential Clean Energy Credit applies everywhere, including Tennessee — about $9,705 on the example system. Tennessee may add its own state incentives on top; check current programs.