Photovoltaic window system for changeable position

PURPOSE: A photovoltaic window system for a changeable position is provided to control an opening/closing range of a window and an opening/closing direction, thereby increasing convenience in use and photovoltaic efficiency. CONSTITUTION: A fixed frame(200) is fixed to an opening of the external wall of a building. A connection unit is arranged between the fixed frame and a window frame(300) to connect the fixed frame with the window frame. The connection unit vertically and horizontally controls an opening/closing direction with the range of opening/closing the window frame from/to the fixed frame. The connection unit is an elastic cylinder type. One end of the connection unit is fixed to the fixed frame and the other end is coupled with the window frame.