For those that may be interested in geothermal you may find a recent interview with Jay Egg of interest. The podcast can be found at this geothermal link. Jay describes how he entered the geothermal hvac profession, tax credits available, the future of the industry, and the installation process. His book, Geothermal HVAC: Green Heating and Cooling, is also described and explained.
Anyone who may be considering installing a geothermal hvac unit or going into the geothermal field would find this interview helpful. Enjoy!