Abstract: The invention relates to a method for controlling an electricity feed to an electricity grid (12) from a load side of an electric circuit (5), comprising the steps of: a) Providing a electricity feed with an associated feed duration to a controller (13) of an electric power converter (7); b) The controller (13) commissioning the electric power converter (7) to provide the electricity feed, until the electricity feed and feed duration is provided anew or until the feed duration expires. The invention further relates to a system for controlling an electricity feed of an electric source.

Abstract: The invention relates to a holding device (1) for a solar panel (2) on a parapet (3) of a balcony, said device having at least the following components: —a connection arrangement (4) for connecting an element to be held, wherein the connection arrangement has at least one support (5, 6, 7, 8) for placing on a parapet; and —at least one transverse strut (9, 10) for bridging a parapet width, wherein the at least one transverse strut is connected to the connection arrangement and has at least one flange (12, 13) for placing on a parapet, wherein by means of a movement of the at least one flange towards the connection arrangement, the at least one flange and the at least one support press in opposite directions against the parapet. The invention disclosed relates to a holding device which allows for greater flexibility with regard to the structure of a balcony parapet.

Abstract: The invention relates to a holding device (1) for a solar panel (2) on a parapet (3) of a balcony, said device having at least the following components: —a connection arrangement (4) for connecting an element to be held, wherein the connection arrangement has at least one support (5, 6, 7, 8) for placing on a parapet; and —at least one transverse strut (9, 10) for bridging a parapet width, wherein the at least one transverse strut is connected to the connection arrangement and has at least one flange (12, 13) for placing on a parapet, wherein by means of a movement of the at least one flange towards the connection arrangement, the at least one flange and the at least one support press in opposite directions against the parapet. The invention disclosed relates to a holding device which allows for greater flexibility with regard to the structure of a balcony parapet.