In Brazil, soccer pitch floodlights are powered by…

In Brazil, soccer pitch floodlights are powered by players' energy on the field

Eco & Sustainability Shell’s Morro da Mineira Project has opened a soccer pitch in the favelas that captures the energy of players and uses it to sustainably power floodlights at nighttime.

http://www.springwise.com/brazil-soccer-pitch-floodlights-powered-players-energy-field/