We received many emails from customers, who asked us to suggest the orientation of the panel array, because they are not sure whether the horizontal or vertical layout of solar panel mounting system could bring better power generation efficiency. Let's talk about that today.

First of all, in an unobstructed installation environment, such as a pitched roof and outdoor without trees and buildings shade, no matter it is horizontal or vertical pendulum, it actually has no impact on power generation efficiency. We sometimes recommend the horizontal layout, which may be based on the distribution of the roof purlin, or it may be to meet stronger wind resistance. But these have no effect on the efficiency of power generation.

Secondly, in an installation environment with a shelter, such as a flat roof with a low wall, where the installation site is limited and the angle requirement is large, we generally recommend the horizontal layout, so as to reduce the shadow in the front row affecting the power generation efficiency of the rear row of solar panel. So in these cases, there is an impact.

Of course, most of the time, it is also necessary to analyze the specific situation, so if you have solar projects in hand, please feel free to consult us through info@sunforson.com, we will design the optimal arrangement and the whole set of solar mounting solution for you.