Half-Cut Cell Solar Panels to Reduce the Effect of High Temperature and Shadow on the Productivity of Solar Panels

Abstract

The solar radiation that reaches the earth is electromagnetic radiation with a length of (4.5 - 0.25) um, and includes, a portion of infrared rays (4.5 - 0.7) um, visible rays of length (0.7 - 0.3) um, and a small portion of ultraviolet rays (0.3 - 0.25) μm. The visible rays, which are the seven colors of the rainbow, give energy to the electrons that enable them to move from the valence band to the conduction band, thus converting light energy into electrical energy. Infrared rays cause the solar panels to overheat, while ultraviolet rays destroy solar cells due to their high energy. The increase in the temperature of solar panels due to infrared radiation affects the performance and efficiency of solar panels, as both the power generated and the voltage generated decrease when the temperature of the solar panels rises above 25°C, and this is the problem of solar energy in the summer season. Shade is considered one of the most dangerous factors for the lifespan and safety of solar panels, as it prevents visible light from penetrating the layers of solar panels and leads to the appearance of hot spots in shaded places. This article presents the potential of half cut cell solar panels to reduce the losses caused by high temperature and reduce the effect of shade on the safety and productivity of solar panels.