Germany’s Ait Group has introduced residential ground-source heat pumps using less than 150 grams of propane, based on results from the Fraunhofer ISE LC150 research project. The new systems deliver ...

The well reached a bottomhole temperature of 520° F as the operator significantly reduced ultradeep geothermal time. The ...

New energy storage research from NREL, a U.S. Department of Energy national laboratory, has demonstrated a way to store and ...