Enhanced geothermal systems are a new type of geothermal power than can be used where naturally occurring geothermal systems do not exist. With enhanced geothermal systems, an injection well is drilled into dry rock. Water is forced into the injection well, which widens the ground fractures below. This process is known as 'hydraulic stimulation'. Water travels through fractures in the rock and becomes hot. This water then travels up a production well. The steam from this water is then used to drive a turbine and thus produce electricity.
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Keeping up with Exploding Lithium Demand In absolute terms, lithium is not particularly rare on Earth. It's the 25th most abundant element, close to nickel and lead. Bolivia alone is estimated to have enough lithium to make batteries for 4.8 billion electric cars, and since lithium is not destroyed in use - unlike fossil fuels - old batteries can be recycled into new ones, or used to smooth out the output of wind farms. 
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(AP) -- Geothermal energy developers plan to pump 24 million gallons of water into the side of a dormant volcano in Central Oregon this summer to demonstrate new technology they hope will give a boost to a green energy sector that has yet to live...
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