In a method for producing a system for inductively transmitting energy to a mobile part, and a device for performing the method: a stepped bore is introduced into a floor; a sealing element is introduced into the stepped bore; a ring frame is held in place in the stepped bore with the aid of an alignment unit supported on the surface of the floor, the upper edge of the ring frame in particular being aligned with the height of the floor or with the surface of a floor covering applied to the floor, i.e. the upper edge in particular being brought to the same height position as the surface of the floor or the floor covering; the ring frame is set apart from the floor so that a gap region exists between the ring frame and the floor; casting compound is filled into the gap region; the alignment unit is removed; and a primary part is accommodated in the ring frame, in particular connected with the aid of screws.