I put in it about 6 ft over the attic flooring joists. My attic isn't floored. The best issue in my attic is about 12 feet higher than the attic joists. This method of creating electrical energy directly from solar radiation is known as the photovoltaic effect, or photovoltaics. With https://solarcompanyinsriganganag52467.dm-blog.com/34945253/examine-this-report-on-solar-company