"We’re talking about air far below the water table, in the kinds of places where you would find things like fossil fuels," said Haresh Kamath, energy storage program manager with the Electric Power Research Institute (EPRI). Natural gas and other fuels can and have been held in "similar rock formations for millions of years under pressure, and nobody notices anything at ground level," he said. In a CAES [Compressed Air Energy Storage] plant, the underground reservoirs could provide the vessels where compressed air could be pumped and stored using surplus wind energy. During times of higher demand, such as hot summer afternoons, the air would be uncorked, heated, and used to turn a turbine to generate electricity.
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Thursday, July 04, 2013
A Clean Rock Battery to Store Clean Wind Energy?
What a beautiful and intriguing idea! Porous Volcanic Rock Might Be Used As A Giant Wind Energy Battery.