clipped from: www.switched.com   
Dancing all night can use up a lot of energy, or create it -- at least that's what a group of Dutch-researchers-cum-nightclub-impressarios hope when they're done with the Sustainable Dance Club (SDC). Based in Rotterdam, the Netherlands, the researchers and architects behind the SDC are working on creating a club that will use solar power, wind turbines, low-energy-using LED lights, and rain water and clubgoers' sweat (yes, you heard correctly) to flush toilets.

But the real innovation is to develop a dance floor that creates power out of the pounding feet of dancers. The dance floor would be embedded with sensors that would help generate electricity.

Already, clubs such as Worm in Rotterdam are using sustainable techniques

Worm is built out of 90 percent recycled materials -- door handles are re-used bike handlebars, walls are made of old real-estate signs, and the club's entrance-way is designed to suck in air that is then filtered up to the club's second floor.