New CPV Systems With Static Reflectors Available to Purchase

New designs of low concentrating photovoltaics have been studied, where static reflectors and moving absorbers that track the concentrated solar rays, aim to cost effective solar devices. These systems are based on the concept that strip absorbers can use the beam radiation and convert it to electricity, while the diffuse radiation is absorbed by flat absorbers and converted into heat. The work on these designs follow the research on the linear Fresnel lenses, which are combined with PV or PV/T absorbers and can be used not only for the conversion of solar radiation into electricity and heat but also to control the illumination and the temperature of interior building spaces. Design aspects and optical results give a figure of the optical performance of these new CPV collectors, which are based on the converged solar radiation distribution profiles for East‐West orientation of parabolic trough reflectors. The concentration ratio depends on the geometry of the parabola axis and the higher values correspond to the axis towards the summer solstice. The results show that the new CPV designs can be effectively applied in buildings adapting energy demand in electricity and heat.