My idea of solar pannels is a good idea becase it wont be to challanging but it wont be too easy. I know how it will work, it will work because a person will select a type of pannel they want and then select an area they are wanting to cover on there roof. Them they will select what size units they desire. At the minute there hant been any difficulites as i have just started but im sure i will encounter some eventually.