Greene Tech Renewable Energy

Verified profile
Updated: 05 December 2023

Installing solar since 2008

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4.76 from 72 Reviews

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SolarReviews Expert Rating Score:

A score we give a solar company out of 100 based on 13 criteria that our SolarReviews industry experts believe are the best criteria to separate good and bad solar companies.


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Greene Tech Renewable Energy reviews

3 stars


2 stars


1 star



Avg. rating

Breakdown of consumer reviews

Sales Process


Price as quoted


On schedule


Installation quality


After sales support


Latest good review thumbs up

Jim Smith | Butler, Tennessee | 12/05/2023

Excellent Service and Support

Ian and his team installed a 9.6kW Solar Edge system in our home this past September. It was fairly complicated, integrating an existing whole house generator, the Solar Edge System, an EV Charger and two batteries. What I really enjoyed was the education that accompanied the hardware. They patiently educated me in operating the system as well as the nuisance of living in a solar first home. Simple things like when to run the dishwasher, or when to charge the car were extremely helpful. All in all it was a great experience.

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JD and Amy | Johnson City, Tennessee | 12/05/2023

Great job! A+++!

We highly recommend Greene Tech. They did a professional turn-key job, and showed us how to use the app. They explained a lot that we didn't understand. We had planned on putting the panels on the ground by our house, but they helped us realize it was much better cost-wise and space-wise on the roof. With a hip roof, they are hardly noticeable. A+++! Thanks!!

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Jan | Whitesburg, Tennessee | 01/11/2023

Great Job, Very knowledgeable

Ian designed a great system for our home, made sure we made changes for our electrical panel and generator prior to installation. Kept me posted on the wait time for equipment. When the equipment arrived, he scheduled the installation and was here every day it didn't rain. System works great and passed inspection with no issues. Ian is also professional and answers all of your questions well. Thanks Ian!

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1 comment >
Reply from Greene Tech Renewable Energy: Thank you Jan!

The Hartleys | Johnson City, Tennessee | 01/04/2023

Highly recommended

Ian and his team were great to work with. Very professional and easy to deal with. Kept us informed regularly and readily answered any questions. While there were delays, with so many supply issues I'm very happy with the final timeline. That is why I gave 5 stars despite the delays for my "On schedule" rating. With regard to cost, no other vendor was really close. Not only that, no other vendor gave me such confidence that the job would be done correctly. The work was done to a high standard. Not only was cost kept in mind, but he long term viability of the system was considered. Lastly, everyone I dealt with during the installation process had a very high opinion of Ian and his team. That says volumes in my experience.

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1 comment >
Reply from Greene Tech Renewable Energy: Thank you very much!

Analytical Shopper | Butler, Tennessee | 08/09/2022

Knowledge, Experience, Attention to Detail

Ian, is very knowledgeable in his field. He can figure it out and knows how to solve things. I would use him again and can recommend him highly!

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Dave & Anita | Jonesborough, Tennessee | 07/01/2022

Energy Independence Thanks To GTRE

Last year GTRE installed our complete solar system with 24 solar panels producing 9.8 kW and 2 LG Li-Ion batteries with 32 kWh storage capacity. Our latest electric bill was $35 at a time when energy costs are probably skyrocketing. The entire installation inside & out is very clean, Ian and his crew were wonderful to work with, and Ian went above & beyond obtaining products despite global manufacturing & supply issues. GTRE has given us a large measure of energy independence in these uncertain times, we're very glad we found them, and we recommend them to anyone.

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lnuttle | Jonesborough, Tennessee | 06/15/2022

Thrilled with my new solar installation!

I am absolutely thrilled with my recent solar installation - a 10.08 kW system with 9.3 kWh battery! Ian was great to work with from day one; his quote was clear and informative, with all of the data I needed to move forward with the project with confidence. The installation was clean and efficient and the quality of the equipment and install drew compliments from the inspectors. Ian has also been very responsive to my post-installation questions and new-owner troubleshooting. I would recommend GTRE without hesitation!

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Douglas Lake | Dandridge, Tennessee | 03/19/2022

Exceed expectations

Ian was super responsive and patient with me as I sent him questions about the 10k Solar Edge and LG Chem battery system he recommended. So it wasn't a surprise when he and his crew did a super professional job on the install and testing. What I didn't expect, though, was that I'd actually enjoy having Ian and his crew around! Great sense of humor and, based on the way he ran his crew and the way they responded to him, a very effective leader. Also, when supply chain issues arose he went out of his way to search for and locate a battery for my system when the originally-ordered battery was hung-up in transit. There's a lot of other specifics I could provide, but this says it all: I once caught him on the roof re-adjusting a whole row of panels to insure that they were in perfect visual alignment with the last panel he'd installed in that row. It has only been off by a small fraction of an inch.

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Edward | Unicoi, Tennessee | 02/21/2022


Ian and his crew were professional, knowledgeable, courteous and seem to genuinely enjoy what they do. He kept us well informed with scheduling, delays (due to supply issues) and other pertinent solar information through his newsletters. Concerned that all those panels would look like it was too much, we were pleasantly surprised after they were installed and realized this was the right move for us. Looking forward to lower electric bills and backup when the power goes out. Highly recommended, both GTRE and solar!

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1 comment >
Reply from Greene Tech Renewable Energy: Thank you Edward!

Mia Z | Kingsport, Tennessee | 07/14/2021

Experienced, very knowledgeable and customer focused

When I started looking for a solar company to add solar to my house, my top requirements were experience and they also had to be knowledgeable enough to answer all of my detailed questions. There are several companies out there, but for this region, no one is better than Ian at GTRE! Ian took a lot of time to develop a proposal and answer all of my questions (and I had a lot!). I followed Ian during the installation and he was extremely knowledgeable with every aspect of the system. We are so happy with our system and can report $0 for our electric bill! During the summer we are building credits with our electric provider that we can use in months with less sun. So if you are looking for experience, knowledge and someone dedicated to their customers - I would encourage you to call Ian at GTRE!

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Rebecca White | Johnson City, Tennessee | 07/10/2021

5 Stars. Couldn't have asked for better.

Professional, honest, timely and knowledgeable. Really enjoyed the entire process.

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Service types

Residential solar - Grid tied

Commercial solar - Grid tied

Solar hot water sales and installations

Wind turbines

Residential solar - Hybrid solar systems

Energy monitoring

Residential solar - Off-grid systems

Pika / Generac Energy Storage

LG Chem solar batteries

SolarEdge - StorEdge

Enphase Storage

About Greene Tech Renewable Energy

Since 2008, Greene Tech Renewable Energy LLC has supplied and installed top-tier, renewable energy systems throughout Northeast Tennessee at affordable prices. We are a locally owned and operated company headquartered in Johnson City, Tennessee with 5 Star Reviews from actual customers on and Google. Licensed Electrician, OSHA and NABCEP Certified PV Installation Professional. Fully insured.

Office locations


Tennessee - Johnson City

937 Hamilton Place (Warehouse Location NO MAIL), Johnson City TN, 37604

Tennessee - Johnson City

530 East Main Street Unit 2226, Johnson City TN, 37601

NABCEP certifications

NABCEP Certified Solar PV Installer
Ian Huddleston



Contact Greene Tech Renewable Energy

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Head Office
530 East Main Street Unit 2226, Johnson City TN, 37601