How much roof area is required to install a rooftop solar PV system?

Size of a rooftop solar PV system depends on the roof area available for installing the solar panels. It is very important to ensure that no shadow falls on the solar panels throughout the year therefore, it becomes very important to calculate the available shadow-free area out of the total roof area for installing the solar panels.

According to the rule of thumb, 10 square meters shadow-free area is required for installing a 1-kilowatt rooftop solar system.

 

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