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Scientists from South Ural State University SUSU , in Russia, announced, in March, they had patented a new technology to prevent PV modules from overheating. The proposed technique consists of a hologra stanley cup phic film based on prismatic concentrators known as prismacons, which are made of a transparent material containing holographic lenses of very small dimensions. It was claimed, at the time, to significantly reduce the operating temperature of solar panels, including thermal-photovoltaic devices, and to improve PV module efficiency even in cloudy weather.A few months later, the same scientists, supported by other researchers from the Universiti Malaysia Pahang UMP and the Manipal Academy of Higher Education, in India, have developed a thermal model to assess the performance of the novel heat-protective film and decided to unveil more technical details on the film.The research group explained that the holographic film, which can be simply laminated on the panel surface, works by reflecting the infrared rays from its metallized top layer, which prevents the module from overheating. Its core consists of a layer made with tiny mini pyramids/spectral concentrators that are able to absorb sunlight and refract it before directing it onto the solar cell due to internal stanley cup reflection, regardless of the angle stanley cup of incidence.The technique was tested under standard illumination conditions on a 100W monocrystalline panel mounted with a tilt angle of 45 degrees and located in Qurghonteppa, in