Geothermal boreholes

As the impact of energy consumption becomes more evident with climate change, finding sustainable and renewable energy sources becomes increasingly important. Geothermal energy is a source of energy that does not pollute the environment and cannot be exhausted. This makes it an ideal resource for consumers who prefer heating and cooling without a carbon footprint.

Like most other boreholes, geothermal boreholes are constructed by drilling a deep hole down into the ground until a certain depth is reached that can supply enough geothermal energy to heat and cool the facility in which it will be installed. Geothermal systems are designed to use the Earth’s constant subsurface temperature in conjunction with a heat exchanger to add heat in the winter and remove heat in the summer. They use water from the constructed borehole as a heat exchange fluid that circulates directly through the geothermal heat pump system. After circulating through the system, the water is returned to the ground through a second borehole called a recharge borehole or is poured to the surface.

Another application for geothermal well drilling is for defrosting open areas such as bridges, and for heating ramps. Also for energy storage in the ground in combination with photovoltaic systems or other energy sources. They can be combined with radiant heating and cooling or concrete tempering. Typically have a diameter of Ø130 to Ø150 and a depth of up to 300m.