#3 - USE RENEWABLE ENERGY- Geoexchange Systems
Geoexchange systems, although not capable of providing heating or cooling as a self sufficient stand alone system on a project, can be used to reduce the amount of heating and cooling differential as they pre heat or pre cool materials for other systems, thereby reducing the energy requirements overall.
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HELPFUL LINKS IN THE AIA 50to50 WIKI:
Geoexchange Systems
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