Why the cell design in a solar panel gets bigger

Solar panels have increased their power over time. This is primarily driven by innovative technology in the solar cells themselves, but improvements in panel assembly technology have also played a role. The increase in power also requires an increase in the individual components of the solar panel, and in this article, we will share with you the changes in solar panels and the reasons for them.

 

Changes in Solar Panel Cells

Before 2010, monocrystalline wafers were small, 125mm*125mm, and a few 156*156mm wafers. After 2010, 156*156 monocrystalline wafers dominated the market. It has been said before that the power of solar panels depends on the size of solar cells. After that, the solar cell manufacturing industry and the process accelerated development, 166*166mm, 182*182mm, 210*210mm, and other specifications of solar cells slowly emerged on the market. It is not difficult to find that the size of silicon wafers has been increasing. The reason is that the large silicon wafers on the wafer side reduce the cost of solar modules. In the panel, module, and system links to thin the cost of non-silicon per watt, the economic benefits are significant. Therefore, the development of large silicon wafer sizes has become inevitable.

 

Why are solar cell sizes getting larger?

In terms of production: the production speed of solar cells is fixed. In other words, the process of doing 156*156mm solar cells and 166*166mm is the same, and the time spent and the labor cost are the same. People are naturally willing to spend almost the same amount to get a higher-power solar cell.

 

Secondly, from the point of view of the power plant system, the modules get higher power due to more giant solar cells in the same power system. In contrast, the number of modules in a string remains the same, so the efficiency of modules on a single stand increases accordingly, and the cost of stands and stakes per Wp decreases; when large modules have little impact on transportation and installation speed, the installation efficiency of modules and stands per Wp increases; since the capacity of each array is determined by the inverter and can be considered fixed, high-power modules can reduce the use of busbars or string inverters, and the use of fewer mounts can reduce the space occupied by the array (considering the front-to-back and left-to-right spacing of the mounts), and reducing the number of mounts and the space they occupy can reduce the cables used for power.

 

If you are interested in learning more about solar panels, remember to pay attention to our website, we will continue to share our knowledge about solar panels with you. If you need custom solar panels, welcomes you to contact us. Findy Solar is your reliable solar panel supplier!

 

Reprinted from Findy Solar – “Why the cell design in a solar panel gets bigger”