Why is solar power still limited in Tennessee

March 27, 2026
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Solar power in Tennessee is growing, but it works a bit differently compared to many other U.S. states. Here’s a clear, practical overview so you understand costs, benefits, and limitations.

How solar power works in Tennessee

Types of solar systems

  • Residential (rooftop solar) – most common for homeowners
  • Commercial systems – for businesses
  • Utility-scale solar farms – large installations feeding the grid

Costs (2026)

  • Average system: ~13.7 kW
  • Cost: about $42,000 before incentives
  • Price per watt: ~$3.08/W

After incentives, typical systems drop significantly (see below).

Incentives & savings

Main incentive (very important)

  • Federal solar tax credit (30%)
    • Cuts installation cost by nearly one-third

Other benefits

  • Property tax reduction (you’re taxed on only ~12.5% of system value)
  • No state sales tax on solar equipment in many cases

Key point:
Tennessee has fewer incentives than most states, so savings depend more on your electricity usage than rebates.

Major drawback: no traditional net metering

This is the biggest difference vs. places like California or Texas.

  • No statewide net metering
  • You don’t get full credit for excess energy sent to the grid

Instead:

TVA buyback programs

  • Run by Tennessee Valley Authority
  • Pay only a few cents per kWh for extra power

Translation:
Selling electricity back is not very profitable in Tennessee.

Why batteries matter here

Because of weak buyback rates:

  • Solar works best when you use your own energy
  • Batteries let you:
    • Store extra solar power
    • Use it at night instead of buying from the grid

In Tennessee, adding a battery often makes solar more worthwhile.

Is solar worth it in Tennessee?

Pros

  • Long-term energy cost stability
  • Protection from rising electricity prices
  • Clean energy / lower carbon footprint

Cons

  • High upfront cost
  • Weak compensation for excess energy
  • Payback period can be longer than in other states

Conclusion

Solar can make sense in Tennessee, but only if:

  • You have high electricity bills
  • Your roof gets good sunlight
  • You plan to stay long-term (10–25 years)
  • You prioritize self-consumption (and possibly batteries)