A method for the feeding of electrical current into a line branch of an electrical installation that is protected by a line protection fuse and is designed for a current up to a maximum permissible value includes feeding into the line branch an electrical current from an external energy supply network and electrical current from an energy generating system. The method further includes limiting the feeding in of the electrical current into the line branch from the external energy supply network by the line protection fuse, which prescribes a limit value for the electrical current fed into the line branch, and controlling the feeding in of the electrical current generated by the energy generating system so that no more than a specific, but variable maximum current is fed into the line branch. The variable maximum current is raised, under the control of a feed control, to allow more electrical current from the energy generating system to be fed into the line branch after the limit value of the line protection fuse has been lowered, under the control of the feed control, in such a way that the maximum permissible value of the current in the line branch is not exceeded even after the raising of the maximum current.