Abstract: A waste management device and a modular power system for such are disclosed. The waste management device may be a compactor or a shredder. The waste management device includes a cylindrical component for handling the waste, and a modular power system arranged to transmit power from one/more motors to the cylindrical component. The modular power system includes an internal gear wheel, a frame and one or more motors attached to the frame. Driving gear wheels of the motors are operably connected to the internal gear wheel such that power of the one or more motors is transmitted from the driving gear wheel(s) to the internal gear wheel.