Power producers around the world are increasingly turning their attention to the heat beneath our feet.
|Circulation test at Rittershoffen EGS site, by Christine Heimlich. Circulation tests of the doublet EGS Rittershoffen site. Rittershoffen village, Alsace, France. September 24, 2014.|
The never-flagging heat lurking at various depths below the Earth’s surface is tapped to produce steam that is used to drive turbines and generate electricity.
This heat can also be used more directly to warm spaces or swimming pools, but sustainable electricity generation is the goal that most have in their sights.