What kind of roof is suitable for installing photovoltaic power stations?

Roof orientation

It is better to install photovoltaic power stations to the south, because we are in the northern hemisphere, photovoltaic panels face south when the power generation is higher, solar radiation is also better. Especially in summer, after noon is the time when the solar radiation is strong, when the direction is due south to west, it will obtain greater power generation; Similarly, the greater solar radiation in winter is slightly to the east. So, as long as your roof is within the ±10° range of the south, there is not much impact on the power generation.

Shadow occlusion

Not all south-facing roofs can be lined with PV modules, and we need to take into account that the surrounding trees and other buildings will not block the PV modules. Obstacles will cause a heat spot effect on the solar panel, which will not only affect the overall power generation, but also cause fatal damage to the panel.

Actual usable area

It's easy to determine the direction of the roof, but how do you calculate the area covered by the barrier? There's a simple algorithm. The width of the occluded object can be approximated by: the height of the occluded object ×2. Subtract this area from the total area of the roof where the components are installed, and it is the actual usable area of the roof.

The difference between a flat roof and a sloping roof

Sloping roofs do not need to be laid, but are laid according to the tilt Angle of the current roof at the time of installation. Since there is no need to consider occlusion between components, components can be fully covered. Therefore, in the absence of roof appendages, the utilization rate of sloping roofs will be higher than that of horizontal roofs. The flat roof is required to design supports.