These picture, or rather, these “thermograms” easily show us where the loss of heat on this solar panel are, and then, eventual breakage or failure. Then, it enables to change the defective panels or defective elements of the panel.
The aim of a solar panel is to store, thanks to specific cells, the solar energy. Here, we can see that some elements of the panels are defective (yellow points) because they release heat while they should not. The yellow color is the sign that heat is being released, then that the panels/ defective elements of the panels need to be changed.