URBANA — In an ongoing effort to reduce greenhouse-gas emissions, the University of Illinois is installing a novel geothermal heating and cooling system within the foundation of a building addition ...

Funded by the U.S. Department of Energy, the lab experiments with harnessing deep Earth heat for geothermal energy, potentially deployable anywhere. Techniques from hydraulic fracturing are applied to ...

Researchers at the University of Padova in Italy have proposed to improve the performance of residential air heat pumps with air-geothermal heat exchangers and have found this combination may reduce ...

Illustration by Sarah Cheney. Imagine a home in which the temperature is always comfortable, yet the heating and cooling system is out of sight. That system performs efficiently but doesn’t require ...