Green sidewalk makes electricity -- one footstep at a time

• In London there's a new type of floor tile that will use kinetic energy to power appliances
• This is called PaveGen
• What PaveGen does is, once you step on the tile takes in the kinetic energy and immediately sends little things of electricity to the nearest appliance 
• This can also hold up to three days of energy do to the on board battery
• The first commercial use for these will be 20 tiles spread out throughout London's Olympic stadium and the new Westfield  Stratford City mall which is supposed to have 30 million customers in the first year
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