One of the biggest costs in running a ground heat pump is in drilling the required hole to insert the heat exchange pipework.
Landfill fire is a problem because it can result in dangerous fumes and groundwater contamination.
Today’s invention seeks to deal with both these issues. It is in the form of several ground heat pumps located at the tops of towers on land designated for landfill.
As the landfill material rises over time, bacterial action can create enormous amounts of heat. This would be extracted for use elsewhere by the heatpumps -without any digging costs.
The process would also reduce the subsurface temperature, so that fires would be much less likely to break out.