What is “Hot spot effect”, and its effect?

The hot spot effect refers to the situation in solar cell modules where some cells are shaded (for example, by bird droppings, leaves, dust, etc.), causing the shaded cells not only to fail to generate electricity but also to be regarded as loads that consume the energy generated by other illuminated cells, thereby causing local overheating.
The hot spot effect may cause serious damage to solar cell modules, such as:
1. Reducing the output power and power generation efficiency of the battery module.
2. Long-term hot spots may cause the encapsulation materials of the battery cells to age, be damaged, and even cause the cells to rupture.
3. Increasing safety hazards, overheating may cause dangerous situations such as fires.
To reduce the impact of the hot spot effect, the following measures can be taken:
1. Regularly clean the solar panels to remove surface obstructions.
2. Install a monitoring system to detect and handle hot spot problems in a timely manner.
3. When designing and installing solar cell modules, pay attention to avoiding possible shading situations.