The Regulateur clock from Baita Design will help you wake up on time while conserving energy. Isn't that great? You get to save the world while waking up on time for work!
This clock doesn't need to be plugged in. It runs off kinetic energy, meaning that it needs friction or interaction to produce its energy. And how does it create friction? On the bottom of the Regulateur clock from Baita Desgin are little gears, which create friction and thus energy.