Pavegen Systems at interbuild exhibition.  Flexible paving slabs that generte energy from people’s footsteps to power street lighting, wayfinding solutions, and other low energy applications. 

Basically, these “paving slabs” can generate “as much as 2.1 watts of electricity per hour” simply by having people walk on them.  This kind of tech is very impressive and surely stands out in the “be green” world we live in today.  Pavegen Systems is currently testing it out in East London and they plan to have them installed more widely sometime in 2010.

[Via Engadget]