18 Oct '11, 7pm

This idea for wind power mimics blades of grass instead of spinning turbines. Could it work at scale? via @Michael_GR

This idea for wind power mimics blades of grass instead of spinning turbines. Could it work at scale? via @Michael_GR

How does it generate electricity? The creators explain: "Within each hollow pole is a stack of piezoelectric ceramic discs. Between the ceramic disks are electrodes. Every other electrode is connected to each other by a cable that reaches from top to bottom of each pole. One cable connects the even electrodes, and another cable connects the odd ones. When the wind sways the poles, the stack of piezoelectric disks is forced into compression, thus generating a current through the electrodes. Within each concrete base is a hollow chamber that houses a torque generator. The generator converts the kinetic energy of the swaying poles into electrical energy by way of an array of current generating shock absorbers, which convert energy produced by the forced movement of fluid through the shock absorber cylinders.

Full article: http://www.treehugger.com/files/2011/10/windstalk-concept...

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