Check this out:
This summer at the largest urban mall in Europe, visitors may notice something different at their feet. Twenty bright green rubber tiles will adorn one of the outdoor walkways at the Westfield Stratford City Mall, which abuts the new Olympic stadium in east London.
The squares aren't just ornamental. They are designed to collect the kinetic energy created by the estimated 40 million pedestrians who will use that walkway in a year, generating several hundred kilowatt-hours of electricity from their footsteps. That's enough to power half the mall's outdoor lighting.
Sweet!! Read more in National Geographic.
(Thanks, Cassie)
