The article explores the impact of snow accumulation in cold seasons on solar panels and the corresponding countermeasures. Snow accumulation will significantly reduce power generation, and users without grid connection will be more affected, but snow reflection can slightly improve performance. The coping strategies include regular snow removal, increasing the angle of panel installation, and reserving space below the panel to ensure power generation efficiency.

German and Belgian scientists have jointly developed a perovskite/CIS stacked solar cell with a photoelectric conversion efficiency of 24.9% (nearly 25%), setting a record for similar technologies. This battery is lightweight and flexible, and can be applied in scenarios such as construction, automobiles, and portable devices. Stacking technology can absorb sunlight of different wavelengths, and this type of battery is expected to increase efficiency to over 30% in the future.

This article focuses on the impact of high summer temperatures on the efficiency of solar panels. It explains that the standard testing temperature for solar panels is 25°C, with an optimal operating range of 15-35°C. Efficiency significantly declines at 65°C, and this temperature effect is related to the "temperature coefficient." The article also provides mitigation measures: ensuring ventilation space during installation and selecting products with lower temperature coefficients to maintain power generation efficiency.

The theme of this article is the interpretation of key performance parameters of solar panels. This article introduces seven core parameters: ISC (short-circuit current), VOC (open circuit voltage), PM (peak power), Imp (maximum power point current), Vmp (maximum power point voltage), FF (fill factor), and η (conversion efficiency). It explains the definitions, units, influencing factors, and calculation methods of each parameter, emphasizing the importance of understanding these parameters for selecting suitable solar panels and evaluating efficiency.

This article explores whether installing solar panels on rooftops can make houses warmer in summer. It is pointed out that solar panels have both power generation and thermal insulation cooling functions. The principle is to absorb solar energy and convert it into electrical energy while blocking sunlight. Taking the summer test in Shanghai in 2020 as an example, it showed that the temperature of the unobstructed roof was 68.5 ℃, and the temperature of the roof under the slab was 48 ℃. It was also mentioned that the temperature of the top floor would decrease by 5-8 ℃ after installation, and various benefits for ordinary users and factories were listed.