Russian Railway Research started utilizing the power generated through passenger SDF technology. That means kinetinc energy will be produced when people or cars move on the source that will be converted into electricity. This was actually SDF (sustainable dance floor) module used on dance floor which used to convert electric power by a small internal generator.
Isn't that great technology? Hope more countries implement this new technology. Here is a demo image.
http://www.railway-technology.com/up...sef2%20600.jpg