NOVELTY - The aerogenerator has a generator installed at a periphery zone of a wind rotor (1), or an annular generator integrated in a periphery unit of a turbine. The rotor or turbine is in contact with ground or water surface by a fulcrum, where the fulcrum forms a base of the rotor or turbine in a pulled up position during die production phase. The fulcrum is formed by a support of the rotor or turbine such that a floating or travelling device is equipped with a motorized propulsion unit, where the aerogenerator jointly relieves an aerogenerator with bearing structure and an airborne aerogenerator.    USE - Circumferential drive aerogenerator for mass production of electricity on high seas.    ADVANTAGE - The fulcrum is formed by the support of the rotor or turbine such that the floating or travelling device is equipped with the motorized propulsion unit, where the aerogenerator jointly relieves the aerogenerator with bearing structure and the airborne aerogenerator so as to sweep a large surface of sea while providing better ratio of an swept surface to an occupied surface. The aerogenerator allows easy management of launching and recovery of the turbine with respect to the management of an airborne turbine, and has reduced airborne mass. The aerogenerator has less occupied surface than an occupied surface by wind mills to be installed in a farm by better optimization of the swept surface. The aerogenerator provides high power of around 400 megawatts for a single unit while limiting the impact of fauna and the underwater flora during installation of the aerogenerator. The generators of the rotor and the turbine are installed in water surface or on ground without requiring multipliers for connection of the generators to periphery zones. The configuration of the rotor ensures high degree of rigidity to the aerogenerator while obtaining proportional mass for the aerogenerator relative to its surface.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of an aerogenerator in its production phase.    Wind rotor (1)    External ring (3)    Cable (10)    Pivot (11)    Anchor (13)