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 ...

But all that is about to change, as the family joins a small-yet-growing group who are tapping into a network of underground energy to heat and cool their homes. Massachusetts, like the rest of ...

On a much larger scale, solar-thermal power plants employ various techniques to concentrate the sun's energy as a heat source. The heat is then used to boil water to drive a steam turbine that ...