Solar thermal-electric power systems collect and concentrate sunlight to produce the high temperatures needed to generate electricity. In most. . Solar thermal technologies are designed to convert the incident solar radiation into usable heat. The process of solar heat conversion implies using energy collectors - the specially designed mirrors, lenses, heat exchangers, which would concentrate the radiant energy from the sun and transfer it. . CLFR is a linear Fresnel reflector system with several or many linear absorbers in the system, allowing the construction of plants in the multi-megawatt range (Fig. . One of the most effective tools in the field of harnessing the sun's energy is the parabolic trough solar thermal collector. Photo from SolarReserve NLR is advancing concentrating solar-thermal power (CSP)—along with integral long-duration thermal energy storage—to provide reliable heat for industrial. . The objective of the present invention is to provide: a reflecting mirror for solar thermal power generation which is reduced in the self-weight and has excellent reflectance and bending resistance, while exhibiting excellent reflectance stability and separation resistance even in high-temperature. .