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The lowest cost unit of energy is one that is not used
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The question arises from time to time in building industry blogs about whether or not geothermal heat pumps (GHPs) are a source or renewable energy. GHPs, or ground-source heat pumps, don't fit neatly...
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About:
Doug is President and CEO of the Geothermal Exchange Organization, the "Voice of the U.S. Geothermal Heat Pump Industry." GEO is a non-profit trade group tha...
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