The hot spot effect in Solar Panels occurs when one or more cells (individual solar cells) within a module generate significantly less current than other normal cells under sunlight due to various reasons (such as shading, damage, aging, internal defects, or mismatch). The hotspot effect is a phenomenon that occurs in everyday usage of solar panels. Hence, it is crucial to understand its origins and ways to mitigate for a smooth and efficient operation of the system. This occurrence is usually triggered by the uneven distribution of sunlight across the solar panel, a scenario that arises when a specific section of. In a photovoltaic (PV) module, a hot spot describes an over proportional heating of a single solar cell or a cell part compared to the surrounding cells. Hot spots can origin, if one solar cell, or just a part of it, produces less carrier compared. The hot spot effect has emerged as a critical threat to component performance and system safety. This article focuses on hot spot issues, systematically expounding on their formation mechanisms, harmful impacts, and presenting targeted solutions throughout the entire process of product selection. Instead of generating power, it starts absorbing power and dissipating it as heat. The affected zone on the module surface heats up sharply, creating what is known as a hotspot.
