Hotspots can arise from a mix of environmental, mechanical, and electrical issues, and one of the most common causes is partial shading. A tree branch, a patch of dust, or even a single leaf can block sunlight to one or more cells, creating an imbalance in light exposure. However, when one or more cells in a string cannot produce enough current, the situation is known as the hotspot effect. This effect could be due to the decline of sunrays in the solar panel through tree branches, dust, buildings, or other factors. As a result, the panel gets heated and overloaded, which leads to a short-circuit that lowers output efficiency overall while hastening material deterioration.
