Updated: Feb 4
A solar panel is made up of cells packaged and connected with electrical contacts called busbars and fingers/ribbons to form a module that is available in different output and voltage ratings.
According to traditional industry standards, modules can either contain 60 Cells or 72 Cells. The only difference between 60-Cell and 72-Cell solar panels is merely in their size. The 72 cell solar modules have 12 more cells and thus are about a foot larger. Except for space and of course, more output, there are no differences between the two types of modules. The difference becomes more consequential on a larger scale.
However, many manufacturers now moving away from the traditional 60/72 cell modules and are now offering modules with up to 144 cells. In this case, the differences are very significant because the cell arrangement is not merely a matter of choice, design or aesthetic considerations but of innovations in cell technology. The top manufacturers have all but stopped issuing the traditional 60/72 cell and many more manufacturers are joining the bandwagon. These new modules are expected to completely displace the traditional panels in the coming years.