Questions About Geothermal Energy
The standard geothermal system includes a loop (tubing) containing a liquid (antifreeze) which is constantly circulating. This loop runs from the building to the exterior, horizontally in the ground, or vertically in a boring, and then back to the building.
As the liquid is circulated, it absorbs heat from the surrounding earth in winter, and transfers heat to the surrounding earth in summer. The liquid is circulated through the compressor or heat pump, which extracts heat for distribution throughout the structure.
In the summer the system works in the opposite direction to provide cool air.