Solutions

To keep the plant energy yield optimized, check the cleanliness of the module surfaces monthly and regularly wash them with clean water. Attention should be paid to fully cleaning the surfaces of modules to prevent formation of hotspots on modules caused by residual dirt and soiling, and the cleaning work should be carried out in the morning or at night. Also, don’t allow any vegetation, trees and structures that are taller than the modules on the eastern, southeastern, southern, southwestern and western sides of the array. Timely pruning of any trees and vegetation taller than the modules is recommended to prevent shading and possible impact on the energy yield of the modules (for details, refer to cleaning manual).

Modules appear blue on the whole because of an anti-reflective film coating on the surfaces of the cells. However, there are certain differences in the color of the modules due to a certain difference in thickness of such films. We have a set of different standard colors, including shallow blue, light blue, medium blue, dark blue and deep blue for modules. Furthermore, the efficiency of PV power generation is associated with the power of modules, and is not influenced by any differences in color.