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How geothermal energy is recovered

Shallow geothermal energy involves a building's heat retrieved from rock, groundwater or soil. A number o energy wells are drilled. Number of wells and their depth is dependent how large the energy demand is for the property. The energy is then recovered using a cooled liquid circulating in a tubing system. As the fluid passes the heat pump it heats up the refrigerant inside the heat pump. Its then compressed and becomes a hot gas and is passed to a condenser where it exchanges its heat to the building's heating- and hot water system.

Geothermal energy- Malmberg