When comparing different brands of solar panels, you will notice that some models are described as “residential”, while others are described as “commercial”. However, this is just a naming convention for different panel sizes, and both types are composed of the same building blocks: solar photovoltaic cells.
A residential solar panel will normally have 60 cells, while a commercial panel has 72 cells. 60-cell solar panels are preferred in home installations since they use roof space more efficiently thanks to their compact design.
On the other hand, 72-cell panels are preferred in commercial and industrial buildings with abundant roof area, where larger panels can be installed with ease. However, commercial panels will work just fine on some homes, and the same applies for residential panels used in commercial or industrial buildings.
As we discussed in a previous article, solar cells can be classified into monocrystalline or polycrystalline, depending on their material structure at the microscopic level.