Years in business

> 13


Average cost per watt below industry average of $3.00


Review score is above industry average of 3.96


NABCEP qualified installer



There are no cons noted

Solar panel cost calculator

Latest Greene Tech Renewable Energy reviews

Latest review

Yorrick of Greeneville TN over 1 month

Had received bids elsewhere which were unsuitable, one out of Knoxville sent up red flags, with immediate distrust/slimy...gave high bid, premium prices for install and equipment not up to my standards/requirements, and sales person was arrogant and high-pressure. Ian Huddleston with Greene Tech Renewable Energy was the exact opposite. First contact/meeting was impressed with knowledge, experience, presentation and bid/equipment to be obtained high quality, with excellent and professional bid for complete install. Performed solar audit on rooftop with proper software to evaluate and verify site suitability. Our install situation NOT typical...two 200 amp services were first updated to single 400 amp service meter/drop with two disconnects/service panels. Installation completed with high attention to detail, and thought given to final appearance and outcome. Ian's team's work is absolutely up to the high standards I hoped for and expected. There have been issues, but each one has been investigated, with contact made with SolarEdge support to ensure all is correct and to figure out how to rectify situation, and Ian has been responsive and out on site to make sure system performs as expected, despite the issues encountered. Even typical installs may have issues, ours being unique had unique problems that needed attention, and we have been extremely pleased with GTRE's desire to be sure we are happy with system, and they are happy with system, and that it is performing as it should be.

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All Greene Tech Renewable Energy reviews

Greene Tech Renewable Energy prices

This installer does not publish their standard system prices on the net.

As such we have used average pricing from the installers service areas as a proxy for what this company would most likely charge for a solar system.

System size


Average cost per watt


Net cost of system

$19,894 - $24,314

Average payback time

Annual power production

17,677 kWh

Levelized cost of solar energy

Levelized cost per kWh is the cost of the solar system divided by the total number of kWh produced by a solar system over it’s lifetime.

6¢ kWh

If you don't get solar

18¢ kWh

Forecast average TN electric rates over the next 25 years

Installers description for their business

Solar PV, Sun Bandit® Solar Hot Water, Bergey and Bornay Wind Power, Solar Air Conditioning and Heating with HotSpot Energy and PowerSpout Microhydro. On or off grid, residential or commercial.

Battery system specialist referred by Outback Power and LG Chem

We also offer system audits and array cleaning with our deionized water system. Will not damage panels and it's safe for the environment.

GTRE will give you a better top-tier, A-grade system at a better price- feel free to ask for references and read reviews from our very happy customers!

Info on the Sun Bandit solar PV water heating system- The most innovative way to heat water since fire! We can also Retro-Fit your existing electric water with Sun Bandit technology and take your water heating off the grid!

Info on Solar Powered Air Conditioning/Heat Pump- Heat or cool your home using the clean, renewable energy of the sun!

Licensed Electrician, OSHA and NABCEP Certified PV Installation Professional. Fully insured.



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


(click to reveal) ..4348


Greene Tech Renewable Energy

Office locations

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TENNESSEE - Johnson City

410 Princeton Road (Warehouse Location NO MAIL), Johnson City TN, 37601

TENNESSEE - Johnson City

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

Accreditations and affiliations

Top 100 Solar Installers of 2020 Top 100 solar installers

Service Types

Residential solar - Grid tied

Small commercial solar - Grid tied

Solar hot water sales and installations

Wind turbines

Residential solar - Hybrid solar systems

Energy monitoring

Residential solar - Off-grid systems

Sonnen battery sales and installations

Pika Energy storage

LG Chem solar batteries

SolarEdge - StorEdge

NABCEP certifications

NABCEP Certified Solar PV Installer
Ian Huddleston

Related solar news

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