12. How much roof area is required to set up the grid connected rooftop solar system? Posted on July 28, 2017 by Sushmita 0 A 12. How much roof area is required to set up the grid connected rooftop solar system? Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.