NOVELTY - The autonomous system useful in a wind power plant (2) for producing hydrogen for refueling motor vehicles operated with hydrogen, is claimed. The wind power plant comprises a vertical rotor having less power, and a cogeneration unit (3) switchable as a replacement in the case of failure of the wind power plant at an electrical energy track (1), which ensures the provision of a standard electrical power, where the electrical energy is produced from the hydrogen and oxygen in an electrolyzer (5) during the gases are stored in a downstream compressor and accumulator for their use.    USE - Autonomous system useful in a wind power plant for producing hydrogen for refueling motor vehicles operated with hydrogen, in a built-up area, and for an off-grid use.    ADVANTAGE - The autonomous system ensures economical and efficient production of the hydrogen with high reliability and less energy consumption in an environmental-friendly manner.    DETAILED DESCRIPTION - The autonomous system useful in a wind power plant (2) for producing hydrogen for refueling motor vehicles operated with hydrogen, is claimed. The wind power plant comprises a vertical rotor having less power, and a cogeneration unit (3) switchable as a replacement in the case of failure of the wind power plant at an electrical energy track (1), which ensures the provision of a standard electrical power, where the electrical energy is produced from the hydrogen and oxygen in an electrolyzer (5) during the gases are stored in a downstream compressor and accumulator for their use. The energy of the system occurs from the wind power plant and other renewable components, where the further products such as oxygen and heat resulting from the operation of the system are provided for an efficient use. The heat energy of the cogeneration unit and the heat loss of the electrolyzer and the compressor are used over a heat exchanger (10) for heating and for water heating of the buildings. The compressor is a pistonless ionic compressor.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic representation of an autonomous system (Drawing includes non-English language text).    Energy track (1)    Wind power plant (2)    Cogeneration unit (3)    Electrolyzer (5)    Heat exchanger. (10)