Specially modified versions of "power assisted motors" have been calculated (from actual test run data of single and dual rotor models) to be capable of considerable excess power output.
The basics of the permanent magnet motor consist of specific magnet placement and timing and velocity. There is repulsion and attraction forces at work that are in use continually. A good portion of the drive comes from permanent magnet field propulsion which requires no power input. The power input that is used on the actuator, causes movement of the stator magnet and aides the rotation and at the same time creates a repetitive cycle of attraction and repulsion to create an operational permanent magnet motor without major magnetic field conflict, and creates the opportunity for continual magnetic drive. A conservative use of actuator power input, can dramatically increase the electrical efficiency of these devices without affecting the torque output or speed.
The power generator devices are still under development. Excellent progress is being made, and up coming testing will hopefully be quite exciting.