Geothermal means heat derived from the earth. In order to tap into the Earth's thermal energy, a ground source heat pump (GHP) is utilized. GHPs are electrically powered systems that tap the stored energy of the greatest solar collector in existence, the Earth. GHPs are one of the most efficient ways to heat and cool a home. More and more homeowners are discovering the benefits of these systems, which tap the relatively constant temperature of the Earth. Simply put, a GHP system moves the heat from the Earth into the home in the winter, and pulls the heat from the home and discharges it into the ground in the summer. Also, as an added bonus you can utilize the waste heat removed from the home's interior during the cooling season to provide virtually free hot water. This can result in a total savings in hot water costs of about 30% annually, and further lower your homes total emissions.

Geothermal can be used in conjuction with solar, radiant floor systems, and can be used to preheat domestic hot water.