10 Jun '11, 5pm

Will We Strike Gold in Geothermal?: Geothermal energy is arguably one of the best, and one of the most challen...

Will We Strike Gold in Geothermal?: Geothermal energy is arguably one of the best, and one of the most challen...

Geothermal energy is arguably one of the best, and one of the most challenging, forms of renewable power available today. First, the bright side. It’s an abundant, underutilized resource. Geothermal power essentially involves tapping subterranean pools of hot water, pumping it up to the surface and using the heat to make steam. The steam turns a turbine. Meanwhile, the water is sent thousands of feet back down into the earth to get reheated by the planet. Rocks, water and a hole in the ground are the main ingredients. The Flintstones could almost have done it. The U.S. has 3 gigawatts' worth of geothermal plants, mostly in Nevada and California, but we could add roughly 40 gigawatts more with known technologies . Technologies like enhanced geothermal -- which involve injecting water into dry wells -- could add another 100 gigawatts in the U.S. Geothermal wells are also -- ...

Full article: http://www.greentechmedia.com/articles/read/will-we-strik...

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