NOVELTY - The method involves connecting an actuator (51) with a rotation part (13) that is fixed to multiple solar panels (11). Multiple solar panel units (10) are installed in an installation position. The solar panels are made into a fixed state at which rotation of the solar panels is blocked in rotation angle after completion of an installation process. Length of a connection rod (61) is adjusted. The rotation part is connected with the solar panel units by the rod after completion of a fixing process. The fixed state of the solar panels is released after completion of the connection process.    USE - Method for installing a solar energy power generation system in an installation position.    ADVANTAGE - The method enables connecting the rotation part with the solar panel units by the rod after completion of the fixing process, so that space of the solar panel units connected with rotation part by the connecting rod can be made equal even when the installation position of the solar panel units is shifted from a design position, rotational movement of the solar panels can be synchronized, and installation work can be easily performed. The solar energy power generation system is installed effectively, so that shifting of rotation angle of the solar panels can be avoided, pressure-receiving area with respect to wind of each solar panel can be restrained small, state of the solar panels can be easily changed by utilizing a detachable fixing jig, and length adjustment operation of the connecting rod can be easily performed, thus attaining facilitation of the solar energy power generation system by easy installation work.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a solar energy power generation system.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a solar energy power generation system.'(Drawing includes non-English language text)'    Solar panel unit (10)    Solar panels (11)    Rotation part (13)    Actuator (51)    Connection rod (61)