Design of Advanced Geothermal Systems is complicated and should only be done by qualified individuals. Geothermal Design Center strongly believes no engineer should be designing geothermal systems beyond simple small systems without having completed the Association of Energy Engineers’ Certified GeoExchange Designer (CGD) certification. We do have this very important certificate (CGD #331) because of all the experience and training we have in this field. We regularly see significantly faulty geothermal drawings and guidance from engineers without the CGD — faults which would cost the owner large sums both in construction and operation.
The AEE describes the CGD as follows:
“The Certified GeoExchange Designer (CGD) program is designed to recognize professionals who have demonstrated high levels of experience, competence, proficiency, and ethical fitness in applying the principles and practices of geothermal heat pump design and related disciplines, as well as to raise the professional standards within the field, and to encourage those involved in the design process through a continuing education program of professional development. The CGD certification is granted by the Association of Energy Engineers and sponsored by the Geothermal Heat Pump Consortium® (GHPC).”