12 Electric system for land vehicles comprised primarily of regenerative electric motors, vehicle wheel hub, battery, electronic controls for motors, high voltage wiring, electrical power distribution unit, and motor cooling radiators for powering vehicles and auxiliary hybrid and full-electric vehicle functions in the nature of propulsion, refrigeration, lift gate, lighting, electrically powered HVAC and other electric systems on the vehicle; systems for transforming, regenerating, controlling, accumulating and regulating energy produced by the movement of semi-tractor trailers, trailers, dollies, light, medium, and heavy-duty commercial vehicles into electric power comprised primarily of regenerative electric motors for powering land vehicles and also including wheel hub, brake drum, high-capacity battery, high voltage wiring, electric power control unit, and cooling fan system for batteries and motors with downloadable and recorded operating system software, sold as a unit therewith to power integrated and auxiliary systems within the vehicle to perform their respective duties; systems for producing energy for refrigeration units in commercial vehicles, utilizing regenerative electric energy, replacing petrol fuel power generation, reducing noise and GHG emissions, namely, systems comprised primarily of regenerative electric motors for powering land vehicles and also including wheel hubs, brake drum, batteries, wiring, electric power control units, and cooling fan system for batteries and motors