Abstract: The invention relates to a solar energy concentrator-collector device including a stationary reflector-concentrator with reflector-concentrator modules joined to a stationary structure forming a matrix. Each reflector-concentrator module includes a frame and at least one reflective surface portion configured to reflect the sun's rays and concentrate them in a linear focus. The stationary structure is formed by frames fixed to supporting profiles. A mobile receiver includes a mobile structure supporting receptor elements parallel to the linear foci. A tracking mechanism is connected to several the supporting profiles and to the mobile structure in order to support and move the mobile structure on the stationary reflector-concentrator so that the receptor elements follow a path of maximum confluence of the sun's rays reflected by the reflective surfaces as the relative position of the sun changes.