By Chris
Ever since the the Roman era, we have used windmills, but wind doesn't always blow when needed. So why not capture it in a bottle? Iowa Stored Energy Park-a group of utilities located in Iowa, Minnesota, and the Dakotas, where howling winds are plentiful- plans to "store" this energy. Those states will ship wind-generated electricity by power grid to a site near Des Monies. There, motor-driven machines will use the electricity to compress air into aquifers 3000 feet below the ground. The air pressure will be released when needed, enhancing the efficiency of gas-powered turbines. The stored energy could produce enough electricity for 75,000 homes.
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