- A company called Pavegen has developed a technology to turn footsteps into electricity
- Walking and other human activities can generate power via piezoelectric cells
- Pavegen's energy harvesting technology can produce up to 7 watts of electricity with each footstep
- Analysts estimate the energy harvesting industry could be worth as much $30 billion by 2018
Tomorrow Transformed explores innovative approaches and opportunities available in business and society through technology.
(CNN)From footfalls to climbing stairs, to opening doors, the cities of the future will look at ways of tapping energy from all the mechanical energy we expend going about our daily lives.