(DE19712747-A1)      In a panel-like photovoltaic solar module, used especially as a facade or roof element and having outer connection leads for electrical connection to further solar modules, the connection leads (25) are fixed to a connection tab (12) which is connected to a module connection element (10) extending outside the panel structure and which is arranged in a tangential plane of the module connection element (10), the latter being connectable to corresponding module connection elements of adjacent solar modules. The interior cover (24) of the module, which is spaced from an exterior pane (20) to define an interspace (22) for holding solar cells, may be in the form of a foil sandwich with one or more fluoropolymer-backed base foils of plastic (e.g. polyester) or metal (e.g. aluminium).    ADVANTAGE -   The connection system can be mechanically fixed to the solar module panel structure in an extremely simple and stable manner and has a universal module connection element which can be fitted not only to the module edge but also to the external faces of the panel structure.    (JP10303447-A)      The module includes a solar battery which is arranged between an external window material (20) and an internal cover. The battery is connected electrically to a conductor embedded with a laminated film. A lead wire (26) is connected to the protrusion (12) for connection.    The protrusion is coupled with a module connection element (10) which is arranged on the tangential flat surface of the external window material. The module connection element is connected to the battery, provided adjacent to it.    ADVANTAGE -   Performs mechanical connections with solar battery module, independently. Possesses high degree of mechanical stability.    (US6075201-A)      In a panel-like photovoltaic solar module, used especially as a facade or roof element and having outer connection leads for electrical connection to further solar modules, the connection leads (25) are fixed to a connection tab (12) which is connected to a module connection element (10) extending outside the panel structure and which is arranged in a tangential plane of the module connection element (10), the latter being connectable to corresponding module connection elements of adjacent solar modules. The interior cover (24) of the module, which is spaced from an exterior pane (20) to define an interspace (22) for holding solar cells, may be in the form of a foil sandwich with one or more fluoropolymer-backed base foils of plastic (e.g. polyester) or metal (e.g. aluminium).    ADVANTAGE -   The connection system can be mechanically fixed to the solar module panel structure in an extremely simple and stable manner and has a universal module connection element which can be fitted not only to the module edge but also to the external faces of the panel structure.