New research suggests that using geothermal heat pumps (GHP) is the best solution when it comes to the energy performance of heating and cooling systems.

More than two years of data has been collected and analyzed at the headquarters of the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) in Atlanta, where they have set up a living laboratory. A research team comprising the Geothermal Exchange Organization, Oklahoma State University and Oak Ridge National…