Hot spot effect of solar cell modules
Solar cell modules are usually installed in open areas and sunny areas. In long-term use, it is inevitable to fall on shelters such as birds, dust, and fallen leaves. These shelters will form shadows on the solar cell modules. In a large-scale solar cell module square array, the row spacing is not suitable and can also form shadows with each other. Due to the presence of partial shadows, the current and voltage of some cells in the solar cell module have changed. As a result, the product of the local current and voltage of the solar cell module is increased, which causes a local temperature rise in these cell modules. The defects of some single cells in the solar cell module may also cause the module to locally generate heat during operation. This phenomenon is called the “hot spot effect”.
