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British start-up Pavegen harvests energy from a no-brainer source: school kids!
Jeff McIntire-strasburg's profile photoNils Rehmann's profile photoAmelior Deliberation's profile photoRenko Tomlinson's profile photo
From what I gather, with the technology as it is right now there are serious limitations but I find the educational side of things the most exciting rather than the energy generation anyway so a big thumbs up from me.
Yeah, I wouldn't be surprised if this didn't generate a ton of energy, but it's an interesting concept...
I forgot exactly where I saw this, but there is a children playground where they have a merry-go-round (one of the ones you have to push to spin) that is hooked up to the water tower. When the kids play it fill the tower with water using the kinetic energy from the merry-go-round to run the pump. 
Yeah I think it was somewhere where water and power were scarce. 
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