Solar Panels in Tennessee (TN)

The average cost of an 8 kW solar system in Tennessee is approximately $25,200 ($3.15/watt installed). Note: The federal residential solar tax credit (Section 25D) was repealed in early 2026, so the full system cost applies unless state incentives are available. Get 3-5 quotes from local installers for accurate pricing.

The federal residential solar tax credit (Section 25D) was repealed in early 2026. Homeowners who installed solar before the repeal can still claim the credit for that tax year. Commercial solar projects continue to receive the 30% ITC under Section 48/48E. While Tennessee does not have state-level solar tax credits, property tax exemptions and net metering may still provide savings. Consult a tax professional for the latest guidance.

With 4.2 peak sun hours/day, Tennessee has good solar potential. An 8 kW system costs approximately $25,200 and can pay for itself in about 15.8 years through electricity savings. After payback, you enjoy 15-20+ years of essentially free electricity.

An 8 kW solar system in Tennessee produces approximately 12,264 kWh/year, saving about $1,594 annually. The estimated payback period is 15.8 years. Over 25 years, total savings can reach $39,850.

Net metering policies vary by utility in Tennessee. Most states offer some form of net metering or net billing that credits solar homeowners for excess electricity sent back to the grid. Contact your local utility or check the DSIRE database for current Tennessee net metering policies.

For Tennessee with 4.2 sun hours/day, high-efficiency panels are the best choice to maximize energy production. Look for panels with efficiency ratings above 21%.

The estimated payback period for an 8 kW solar system in Tennessee is 15.8 years. This is calculated as: system cost ($25,200) divided by annual savings ($1,594/year). After payback, solar generates essentially free electricity for 15-20+ more years.

A battery is not required for grid-tied solar in Tennessee, but it provides backup power during outages and can increase savings with time-of-use rate optimization. Battery prices continue to decline, making storage increasingly cost-effective.

Tennessee currently has limited state-level solar incentives, and the federal residential ITC (Section 25D) was repealed in early 2026. Solar can still pay for itself through electricity savings alone in 15.8 years.