A windmill includes a rotor having an outer blade edge of a stacked blade configuration windmill which generates electricity through outside rings which include wire windings. The outer blade edges are configured in a C-shape to enclose as much as ¾ of the outside ring to give mounting areas and overall blade stability. The system can be mounted in vehicles to charge batteries or provide for hydrogen separation in hydrogen cars as well as many other applications. The system can be modular so that a windmill of any suitable size can be constructed.