Ground source Heat Pumps (GSHP): This technology makes use of the energy stored in the earth’s crust, which comes mainly from solar radiation. Fundamentally, heat pumps take up heat at a certain temperature and discharge it at a higher temperature. This is attained by means of ground collectors (coil), in which a heat exchange fluid circulates and transfers heat via a heat exchanger to the heat pump. The cycle is driven by the temperature difference among the ground and the circulating fluid. Diverse application includes space heating, heat recovery, water heating, space cooling and dehumidification in both domestic and commercial building sectors.