A solar energy system is made up of multiple panels. Every panel is constructed of many solar cells. It is these cells that capture the rays of sunlight and begin the process of turning them into energy. You have probably mainly seen solar panels set up on the roofs of buildings. Logically, it might make sense that simply putting these cells and panels closer to the sun would make them effective at generating electricity. This is not necessarily true, though.
The short reasoning is that height often helps, but not just because of the elevation. The most significant influence on the quality of power your system generates is the amount of direct sunlight it receives. We put solar panels on roofs because this is often the best way to find the best light.
One of the other reasons we put many solar panel systems on roofs is because these spaces are typically always available. Putting your array on the roof keeps it out of the way and makes use of space that was otherwise going to waste. Another bonus of solar technology is that solar panels absorb heat as well as sunlight. Having them on your roof reduces the amount of heat that gets into your building. That means your HVAC system won’t have to work as hard to cool down your facility.