Orbita is an appliance that uses the energy created by body movement as energy source of the appliance. This gives you the liberty to spend more time on tasks that your enjoy rather than cleaning up the house. Although its not explained how, but the system syncs in such a way that while sweat it out in a workout, the energy expended by you can be used to do some cleaning by Orbita.
An interesting concept and is the 2013 Electrolux Design Lab semifinalist.
Designer: Natalia Aguado