22 Feb '15, 5pm

Now is the time to invest in real geothermal energy

Now is the time to invest in real geothermal energy

In a recent post on ground source heat pumps, I purposely used a photo of a geothermal installation in Iceland to make the point that geothermal energy was a very different thing. Many complained that I obviously didn't know what I was talking about ("The big clue starts with the picture at the top which is NOT a geothermal heat pump system.") Well, duh — that was the whole point. Geothermal power is a very different thing and a very important source of renewable energy. With true geothermal energy systems, the heat of the Earth's interior is used to make steam, which drives turbines, just like coal or nuclear plants do. This heat is close enough to tap at geologic faults, so the hot spots are along the Pacific rim and Iceland, the geothermal capital of the world. Almost every building in Iceland is heated by hot water, and all the country's electricity is made using geoth...

Full article: http://www.mnn.com/earth-matters/energy/stories/now-is-th...

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