Researchers at the University of Nottingham have investigated the performance of a shallow geothermal heat pump coupled to a PV system for the heating and cooling of a greenhouse. Described in the ...

Heat pumps are some of the most energy efficient heating systems available today. They’re also eco-friendly HVAC options because they don’t burn gas or oil to operation and they use far less ...

These underground reservoirs of steam and hot water can be tapped to generate electricity or to heat and cool buildings directly. 4 min read Geothermal energy has been used for thousands of years ...