Energy Piles are equipped with individual or several pipe circuits to enable exchange of heat with the surrounding soil. Geothermal energy is the second most abundant source of heat on earth, after solar energy, as is found stored in the earth. There are two functions of Energy Piles. The first consists of transferring load from construction into the bearing layer, and the second is the exchange of heat with the soil. Energy piles are installed either using soil displacement techniques or soil excavation systems. With increasing energy costs and the introduction of greater renewable energy requirements for new buildings, Energy Piles are becoming more and more in demand.