Covering the environment, engineering, technology, and economics
Thursday, November 8, 2012
LightSail Energy
Check out the video and keep an eye on LightSail Energy. LightSail is building a compressed-air energy storage system. The idea is straightforward - - electricity from a wind turbine drives a motor that powers an air compressor. Water (energy needs water and water needs energy) is sprayed into the air during the compression process to absorb heat. The mix of water and air is then ejected from the compressor chamber and sent through an air and water separator, yielding dry and liquid water, which are stored in large tanks. To harness the energy that has been stored in this way, you just run the process in reverse.
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