6. Good Vibrations

Image Credit

People who like to dance may not realize it, but their energetic movements might be able to help produce usable energy. A dance club in Rotterdam called Club Watt makes use of the movement of the guests to power the lights that illuminate the dance floor. The piezoelectric materials that are used are able to release energy when they are placed under stress. The technology is still a bit too expensive for widespread use, but you can be sure that experimentation will continue in an effort to make this new source of energy both practical and affordable.