Water4Gas Type Spiral Electrode HHO System

The alternator does not "require" energy to turn. It produces energy based on the energy applied to it. Therefore it "requires" energy to produce energy. It sounds as though you are making the "No Free Energy" argument. Which has its merits. But, this is a maximum efficiency of energy situation, similar to a rope and tackle system. Solar Energy is as close to Free as we will get in the near term.