Road energy systems collect heat from asphalt surfaces

Road energy systems are more commonly used to stop roads and airport runways from freezing over. More recently the technology is being used within the construction industry in the same manor as ground source heat pumps. 

The system consist of an asphalt concrete layer (which is very efficient at absorbing heat) with a reinforced structure and a water-bearing medium.  When the sun shines, the road energy system absorbs the heat which can then be stored in an underground water-bearing sandy layer (also known as an aquifer) and pumped up for heating purposes in winter. 

Road energy systems are extremely efficient at absorbing heat from the sun making them an ideal solution for reducing energy costs and carbon emissions. Additional benefits include doubling the lifespan of the road they are contained within as they can be kept cool during the summer and frost free during the winter. Road energy systems can be used anywhere from car parks to airport runways.