Ground Source Heat Pumps

Ground Source Heat Pumps utilise a collector array to absorb or inject heat to the ground, achieved by utilising a closed or open loop ground source heart pump system. Using the heat gain or loss achieved from the ground, the ground source heat pump can then attain the temperature desired from the refrigeration cycle to the desired temperature sustainably and efficiently.

Closed Loop Systems

Vertical Boreholes

Vertical boreholes are drilled to a depth ranging from 50m to 250m, a "U-Tube" or Geo loop is then inserted and the borehole is backfilled using a high conductivity grout for maximum thermal transfer.

Horizontal Trenches

Trenches are excavated to a depth ranging from 1.2m to 2m, pipe work is laid along the length of the trench, typically 50m to 150m long.

Horizontal Slinky

Similar to the horizontal trench, however the pipe work is coiled helixally within the trench. Trenches will range from 15m to 30m.

Open Loop Systems

Vertical Driller Aquifer

Two boreholes are drilled and paired, an abstraction and injection, ground water from the abstraction borehole is pumped via a heat exchanger and rejected into the injection borehole. Boreholes for open loop ground source heat pump systems are subject to obtaining a license from the local environment agency and are subject to successful testing from ground water sustainability.

Reservoir Abstraction

Utilising a body of water, (for example a lake, river, port, dock or even the ocean), water is pumped via a filtration unit to a heat exchanger.

Benefits of Ground Source Heat Pumps

How Ground Source Heat Pumps work

For further information on REC Renewable Energy ground source heat pumps please contact your local office or contact us online.