Abstract: The disclosure relates to a solar cell assembly comprising plural solar cell modules connected to each other. The overall output of the connected modules is delivered from the terminals of the first module. The input and output of the last module of the modules connected in series can be connected without wires. The output of the modules connected in parallel can be delivered from the terminals of the first module without wire connection.

Abstract: The present invention relates to a solar cell module comprising a projected section formed on a side of a module case including plural interconnected solar cell devices, a groove section formed on the opposite side to accommodate the projected section and terminals of the solar cell devices, which are provided on the projected section and the groove section so that the plural solar cell modules can be connected mechanically and electrically, whereby the first-engagement sections provided on the projected section of a module case are inserted into the second-engagement sections provided on the groove section of another module case so that plural module cases can be connected easily and securely to each other at the regular position.