Every time you walk somewhere, you exert energy, which is wasted -- unless you happen to be walking across a Pavegen tile.
Pavegen Systems, a London-based startup founded in 2009, has created a technology that converts kinetic energy from footsteps into renewable energy. When walking on Pavegen tiles, a person's weight and movement generates electrical currents which is used to juice up cellphones or lights.
The tiles are made from recycled rubber and can be built into new developments or retrofit to existing floors systems.
Pavegen has worked on projects in 20 different countries, including the 2012 London Olympics, London's Heathrow Airport, a football field in Rio de Janeiro and a train station in Saint Omer, France.