Solar panels installed on a residential home in Tennessee

Solar Panel Cost in Tennessee

Updated 2026 guide to solar panel prices, savings, and payback period in Tennessee.

Estimated Solar Savings

$2.85Cost Per Watt
$17,100Avg. System Cost
9Year Payback
$26,00025-Year Savings

Solar Panel System Costs in Tennessee

Below are estimated costs for different solar panel system sizes in Tennessee, including the 30% federal solar tax credit.

System SizeCost Before IncentivesFederal Tax Credit (30%)Net CostEst. Annual Production
4 kW$11,400-$3,420$7,9806,278 kWh
6 kWMost Popular$17,100-$5,130$11,9709,417 kWh
8 kW$22,800-$6,840$15,96012,556 kWh
10 kW$28,500-$8,550$19,95015,695 kWh
12 kW$34,200-$10,260$23,94018,834 kWh

What Affects Solar Panel Cost in Tennessee?

The average cost of solar panels in Tennessee is $285/watt before incentives. For a typical 6kW residential system, that means a total cost of about $17,100 before the federal tax credit.

After applying the 30% federal Investment Tax Credit (ITC), your net cost drops to approximately $11,970.Tennessee homeowners typically see a payback period of 9 years and save an estimated $26,000 over 25 years.

Tennessee solar costs have dropped approximately 39% over the past decade. While TVA buyback rates have changed, falling costs continue to make solar more attractive.

Factors that affect your cost:

  • System size: Larger systems cost more but have a lower cost per watt
  • Equipment quality: Premium panels and inverters cost more but offer better efficiency
  • Roof complexity: Steep roofs, multiple levels, or shading can increase installation costs
  • Local labor rates: Installation costs vary by region within Tennessee
  • Incentives: State and local programs can significantly reduce your out-of-pocket cost
Beautiful home with solar panels in Tennessee demonstrating residential solar installation

Solar Incentives in Tennessee

Federal Solar Investment Tax Credit

30% Federal Tax Credit (ITC)

Tennessee homeowners can claim the 30% federal solar Investment Tax Credit to reduce installation costs.

30%

State & Local Incentives

TVA Green Power Providers

Rebate

The Tennessee Valley Authority's Green Power Providers program offers credits for solar energy contributed to the grid.

Generation credits at TVA's published rates

Sales Tax Exemption

Sales Tax

Tennessee does not charge sales tax on residential solar energy equipment.

Sales tax exemption on solar equipment

Net Metering

Tennessee does not have a traditional net metering policy. TVA and local power companies offer programs like Green Power Providers, but terms differ from standard net metering.

Not Available

SRECs

Tennessee does not have an SREC market. The TVA system operates differently from states with restructured electricity markets.

Not Available
View all Tennessee solar incentives →

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Top Solar Companies in Tennessee

Affordable Solar Roof & Air

4.9(721 reviews)

Years in Business: 14

Service Area: Nashville

Phone: (800) 515-1254

Sunergy Solutions LLC

4.9(146 reviews)

Years in Business: 6

Service Area: Nashville

Phone: (603) 289-1090

Green Power Energy

4.8(406 reviews)

Years in Business: 17

Service Area: Nashville

Phone: (855) 525-1675

Green Wave Solar

3.4(3 reviews)

Years in Business: 9

Service Area: Tennessee

Phone: (855) 525-1675

Power Home Remodeling

3.4(1 reviews)

Years in Business: 21

Service Area: Tennessee

Phone: (855) 525-1675

View all Tennessee solar companies →

Solar Panel Cost FAQ - Tennessee

The cost of solar panels in Tennessee typically ranges from $2.50 to $3.50 per watt before incentives. For a standard 6 kW residential system, homeowners in Tennessee can expect to pay between $15,000 and $21,000 before the federal tax credit. After applying the 30% federal Investment Tax Credit, the net cost drops to approximately $10,500-$14,700. Actual costs vary based on your specific roof, chosen equipment, and installer. We recommend getting at least three quotes from local Tennessee solar installers to find the best price.

The average solar payback period in Tennessee depends on local electricity rates, available incentives, and sun exposure. Most Tennessee homeowners see a payback period between 6 and 10 years. After the payback period, you essentially enjoy free electricity for the remaining 15-20+ years of your system's life. Higher local electricity rates and additional state incentives can shorten the payback period significantly. A qualified Tennessee solar installer can calculate your specific payback period based on your energy usage and roof characteristics.

Tennessee homeowners who install solar panels typically save between $20,000 and $50,000 over 25 years, depending on system size, electricity rates, and available incentives. These savings come from reduced or eliminated electricity bills, net metering credits, and any applicable SREC income. As electricity rates in Tennessee continue to rise (historically averaging 2-3% annually), your savings grow each year. The combination of the 30% federal tax credit and any Tennessee-specific incentives helps maximize your return on investment.

The right solar system size for your Tennessee home depends on your electricity consumption, roof space, and budget. The average Tennessee home uses approximately 10,000-11,000 kWh per year, which typically requires a 6-8 kW solar system. To determine your ideal size, review your annual electricity usage on recent utility bills. Factors like Tennessee's average peak sun hours, your roof orientation, and any shading will affect how many panels you need. A professional Tennessee solar installer will use satellite imagery and your usage data to recommend the optimal system size.

Yes, solar is generally worth the investment for Tennessee homeowners in 2025. With solar panel costs at historic lows, the 30% federal tax credit still available, and electricity rates continuing to rise, the financial case for solar in Tennessee is strong. Most Tennessee homeowners who go solar see positive returns within 6-10 years, followed by 15-20+ years of significant savings. Additionally, solar panels increase your home value, provide energy independence, and protect against future electricity rate increases. The best way to determine if solar is right for your Tennessee home is to get a free, customized quote from a qualified local installer.

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30%Federal Tax Credit
25+Year Savings
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