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Free Estimates

If you're intrigued by the prospect of utilizing solar energy for your home or business, you're probably interested in understanding the costs and benefits involved. This is where a tailored quote from GTRE will provide you with much more than just a dollar amount.


Our detailed quotes provide you with:

  • Aerial view of the panels on your roof

  • Financing and cash options

  • Potential tax credits

  • Materials list

  • Estimated yearly savings on your electrical bill

  • And more

Your information is safe with us. Our practices are designed to protect your privacy and foster a trustworthy relationship. Rest assured, we will never engage in selling, sharing, spamming, or any unauthorized use of your data. 

We currently only install in Tennessee, within 50 miles of Johnson City.


What is your budget for a solar system?
What do you want to achieve with a solar system?
Do you want to have solar battery backup?
Do you want an EV Charger?

Thank you!

We will be in touch soon!

Ask these questions of every solar company

1) Are your installers certified NABCEP PV Installation Professionals?

This is a voluntary certification that provides a set of national standards by which PV Installation Professionals with skills and experience can distinguish themselves from their competition. PV Solar is a specialized area that requires more knowledge than just an electrical license provides.  

2) Are your installers local or sub-contracted out of the area?

The National Renewable Energy Laboratory reports that a local solar installer could save you 10% or more on your system. Many larger companies take a "cookie cutter approach" to improve efficiency and bottom line. Time and attention are needed to fully customize a system to fit your home's specifications and your needs.   

3) Where is your company based? Do you have a local office?

With a local company, you form a partnership with your installer. Local solar companies are dependent on referrals, which means every solar installation is just as much an investment for the installer as it is for the person who’s having the system installed. Supporting local businesses isn't just beneficial for you, it's better for the local economy too.

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