Ground Source Heating and Cooling (Geothermal)

Ground source heating (frequently referred to as geothermal), involves the recovery of heat from the ground via a system of boreholes or trenches and a heat pump, for the purpose of heating buildings.  The system can often be run in reverse during the summer months for cooling purposes, disposing heat into the ground.

The potential for the ground to store and transport heat is dependent on the ground conditions (geology and hydrogeology).  Groundwater flow theory is based on the same principles as heat transport in the ground.  Therefore input from a Hydrogeologist on the feasibility and design of ground source heating and cooling systems (particularly large systems in excess of 50 kW for example) can ensure that the system can meet the heating/cooling requirements of the building for its full lifetime.

Hydrogeo can work alongside Architects, building and heating Engineers to ensure the ground source system is designed appropriately based on an understanding of the ground and groundwater conditions.  This can ensure that the risks associated with reliance on the ground for heating and cooling purposes are understood and minimised.

Hydrogeo can provide advice and expertise for the following:

  • Feasibility, design, supervision and licensing of open systems (heat exchange from groundwater abstracted from boreholes)
  • Feasibility, design and supervision of closed systems (heat exchange direct from the ground via trenches or boreholes.