GeoExchange is commonly referred to as Geothermal, although they employ different technologies. Geothermal technology harnesses energy from extreme "hot spots" in the earth's crust. The intensity of thermal energy increases with depth (the global average for the earth’s geothermal gradient is approximately 30°C/km). The earth contains vast amounts of this thermal energy, which can be used to directly produce electricity and heat. More information on geothermal technology can be found at: http://www.cangea.ca/
GeoExchange technology uses the relatively constant temperature of the ground to moderate a building's temperature. For example, in winter the ground temperature tends to be warmer than the air temperature, so heat is “pumped” from the ground to help heat the building. In summer, the opposite is the case, and the building can be cooled. GeoExchange technology is becoming a very popular way to reduce heating and cooling costs.
Homeowners report a reduction in their utility bills of 25% to 50% compared to conventional systems, lower maintenance costs, and higher levels of comfort year-round.
The Canadian GeoExchange industry is in the process of implementing adequate training for professionals, as well as quality control of installations for existing and new construction markets based on training, accreditation, qualification, certification, arbitration and communication.