A Clean Energy Alternative from Pavegen

I need this in my house. Given the foot traffic, I have to wonder how many watts of energy our upstairs  hallway could generate with these brilliant kinetic energy absorbing slabs from pavagen. Pavegen slabs are installed in high traffic areas where the kinetic energy from foot traffic  stored as energy in the slab. The energy can then be used for traditional energy needs such as powering lighting.  It’s truly refreshing to see a clean, efficient and well design alternative for  energy production.