Geo-Exchange Heating and Cooling 

Renewable and Ready Geo-Exchange systems use the Earth’s energy storage capability to heat and cool buildings, and to provide hot water. The earth is a huge energy storage device that absorbs 47% of the sun’s energy – more than 500 times more energy than mankind needs every year – in the form of clean, renewable energy. Geo-exchange systems take this heat during the heating season at an efficiency approaching or exceeding 400%, and return it during the cooling season.

EPA found that geo-exchange heating and cooling systems can reduce energy consumption—and corresponding emissions—by more than 40% compared to air source heat pumps and by over 70% compared to electric resistance heating with standard air-conditioning equipment.

How Geo-exchange works: Geo-exchange systems use the Earth’s energy storage capability to heat and cool buildings, and to provide hot water. The earth is a huge energy storage device that absorbs 47% of the sun’s energy--more than 500 times more energy than mankind needs every year--in the form of clean, renewable energy.

Geo-exchange synergies with building efficiency: More efficient systems, better building envelopes, and art ventilation


Prototype / Case Study #4 

 

 September Basement / Earth Temperature 2011
                                                    Outdoor Humid-Air Temperature




Bardwell Residence Annapolis MD

 


Due to the phenomenon of “Thermal Lag”, the basement structure now has become a thermal heat sink and storage unit, assisting the performance of the building’s heating and cooling system. The basement structure and adjacent earth, during the summer, will be cooler than normal due to the winter’s heat extraction cycle, and it will be warmer than normal at the beginning of winter, due to the dumping of heat during the summer. This results in thermal energy lag effect in the foundation and soil, which assists the home’s heating and cooling

 

 







Annapolis has the world's first Earth or Geo-Ventilation, "Basement Energy" system. We have developed a new trend in the future of home improvements, and we are the first in the world to harness "Earth Coupling," released through our geothermal ventilation patent. Our project in Annapolis has just received Passive House Institute of the United States (PHIUS) approval for certification.