3E-CSP project investigates in detail a novel concentrated solar power system, which is a beam-down linear Fresnel reflector coupled with a compound parabolic concentrator. The collector utilizes primary segmented mirrors that reflect the solar rays to a secondary hyperbolic reflector which redirects the solar rays into a cavity receiver which is located on the ground. Within the framework of the project, the secondary reflector will be designed and optimized aiming for the maximum optical efficiency of the system. Both optical and thermal analyses will be conducted to calculate the efficiency curves of the collector. Furthermore, the scalable solar collector will be combined with various thermal energy storage solutions, emphasizing on a latent system with phase change materials. The collector will also be coupled with an organic Rankine cycle for exploring its power production capabilities. Finally, technoeconomic investigations will also be conducted.