Abstract: Modular solar radiation concentrator system, which consists of using several flat reflectors mounted on a platform that transmits to each reflector rotation about two axes, allowing the concentration of solar radiation in an area or specific predetermined point in space. Each module is connected to a monitoring instrument, with specific software that allows knowing the sun's apparent path at the system installation site. Thus, the control of all reflectors of each module is conducted on their two axes of rotation so that solar radiation is, in every moment of the day, and every day of the year, focused or simply deviated to a particular point. The system described is specially devoted to solar concentration for the purpose of generating electricity, heat or both simultaneously, especially in buildings where the point of concentration may be, among others, a Stirling engine, a steam turbine or photovoltaic cells.