GHP System Experts
GHP Product Development

Welcome to Geothermal Design Center

Latest News: U.S. Department of Energy has published the validation report for our Geothermal Thermal Conductivity breakthrough.  Click here for more info.

Latest News: Our latest MIT Climate CoLab Proposal for 100% GHG Elimination is final now!  Click for more info.

Professional Engineering - Net Zero Energy/Geothermal Systems Design Experts

Geothermal Design Center Inc. is a Professional Engineering Corporation focused on the application of Geothermal Heat Pumps (GHP/GSHP) to Net Zero Energy construction.  We perform all matter of Geothermal/GHP Systems Design, Net Zero Energy analysis, second and third party NZE/GHP Review, GHP Construction Oversight and Commissioning, and design and implementation of advanced NZE controls systems.  We have a track record of System Analysis and Problem Resolution, helping those clients who have unfortunately had poorly designed or installed GHP systems, including those who have systems in need of HVAC licensing board review and expert analysis. 

Our Lead PE is a Certified GeoExchange Designer (CGD), Licensed HVAC Contractor, IGSHPA Trainer (GHP Contractor Trainer), and a broadly experienced Systems Engineer.  The CGD training and certification from the Association of Energy Engineers (AEE) and the International Ground Source Heat Pump Association (IGSHPA) is the most advanced training/certification available for GHP systems design, and it is the absolute minimum certification that should be allowed for any commercial GHP engineering work. 

We further work with highly experienced GHP and NZE designers across North America with collectively over 120 years Commercial and Residential GHP Experience, building teams with them to best serve our clients.  With our broad GHP experience and that of our continent-wide associates, we are a strong asset for any owner or financier who wants a successful GHP system, no matter their current stage of development or installation.  We also provide completely confidential advice to any GHP Contractor or other Professional Engineers who are interested in high quality GHP work. 

GHP Construction Oversight and Documentation

We also proudly introduce the Geo-AssuredTM Integrated Geothermal Quality Assurance System.  Geo-Assured is a suite of tools for use by engineers, building owners, and contractors specifically created to qualify a geothermal system design and to convert the design into a detailed construction and verification plan. 

ANSI/CSA C448 Compliance Verification and Assistance

The new Bi-National ANSI/CSA C448-16 Geothermal Design and Installation Standard is a major development in the GHP/GSHP field.  The C448 Standard covers all aspects of every type of GHP system design and installation.  We are on the Technical Committee for this important GHP standard and understand it thoroughly.  In our opinion, every GHP installation should be specified to meet C448-16 -- that would eliminate many of the problems that occur with inexperienced/under-experienced engineers and contractors in the GHP field. 

We offer our 3rd party C448 Compliance Assurance and Certification and Consulting services to building owners, financiers, and bonding firms to assure only high quality GHP systems work.  Utilizing our Geo-AssuredTM Integrated Geothermal Quality Assurance system, we can remotely provide full compliance certification with complete documentation at a reasonable cost. 

Advanced Thermal Conductivity Testing -- Small Business Vouchers Pilot Winner!

Geothermal Design Center brings Leadership and Innovation to the Geothermal Heat Pump (GHP/GSHP) industry.  We won a Small Business Vouchers Pilot grant to have Oak Ridge National Lab (ORNL) validate our new breakthrough Advanced Thermal Conductivity Testing (A-TCT) method.  The effort has been a 100% SUCCESS!!  ORNL confirmed our new way to perform ground Thermal Conductivity Testing works faster and better than existing methods. Further, our new advanced methods can be used to confirm proper ground loop installation pipe and grout -- a completely new capability for the geothermal heat pump industry.  Our new A-TCT method further lowers the cost of Thermal Conductivity Testing testing by eliminating the need for an expensive generator -- stable power is no longer required!  This is an exciting development for the geothermal industry that will significantly improve the quality of Thermal Testing and lower its cost for all GHP sites -- Institutional, Commercial, and Residential.  This is just one of our several GHP Product Development efforts.

Click here to upload data for Advanced Thermal Conductivity Testing.

You can read the official ORNL Report on our Advanced Thermal Conductivity Testing system here.

Geothermal Installer Training

As certified IGSHPA Geothermal Installer Trainers, we periodically hold Accredited Installer Trainings. Our next training date has not been scheduled.  It is essential that a geothermal HVAC installer fully understand what GHP/GSHP is before before attempting an installation.  Homeowners should be very careful who they hire to install a GHP/GSHP system.  IGSHPA Accredited Installer training is the minimum required standard for residential and commercial GHP/GSHP installers in our professional opinion.  To find another IGSHPA Accredited Installer Training, see the IGSHPA Training Page

Net Zero Foundation

We are especially proud of our energy industry leading work at Net Zero Foundation, a 501c3 non-profit.  Net Zero Foundation is showing how, with the significant help of the GHP industry, we can now eliminate over 50% of our GHG (green house gas) emissions.  Please check out the Net Zero Foundation website for much more information about this Leading and groundbreaking work. 

Contact Us

You can contact us at 828-772-5277, or e-mail to (with the "@" symbol).  Let us bring our experience and our association with Net Zero Energy and GHP industry leaders from all over North America to serve you.  Our focus is to build the NZE/GHP industries by ensuring quality and economical installations. 

Copyright 2015-2019 Geothermal Design Center Inc., All Rights Reserved.
Geothermal Design Center is a licensed Professional Corporation. Home Office: Asheville, NC