It is no secret that sunlight determines the amount of energy you will receive throughout the day. So, whenever you decide to install a solar power system on the roof of your house, it is essential to pick the side of the roof that receives the maximum amount of solar radiation.
As discussed previously, solar panels are likely to give more energy output when the sun rays are perpendicular to the panel. So, for regions in the Northern hemisphere, the best orientation for panels is facing south.
In contrast, regions in the Southern hemisphere demand an orientation facing north. A slight change in the orientation of the panels is allowed as there might be objects that shade the panels.