Provided is an electrolysis arrangement including a plurality of electrolytic units, wherein each electrolytic unit includes an electrolytic cell and an AC-DC power converter configured to provide DC power for that electrolytic cell; a plurality of electrolytic assemblies, wherein each electrolytic assembly includes a number of electrolytic units; at least one wind turbine including an electrical generator with a number of armature windings, wherein each armature winding provides AC power to one electrolytic assembly; and a converter unit controller configured to regulate the AC-DC power converters of the electrolytic units on the basis of the power output of an electrical generator. A method of operating such an electrolysis arrangement is also provided.