Performance

CertainTeed solar shingles employ the same fundamental solar technology as standard solar PV panels and other solar roofing options: silicon solar photovoltaic cells. However, because of the nature of the product, CertainTeed's solar shingles will produce less electricity than a similarly sized roof-mounted solar panel system. According to CertainTeed's product specifications, the Solstice Shingle system has an active cell efficiency of 19.85%, within the typical efficiency range for standard solar panels, with average ratings between 17% and 20%. SunPower and Canadian Solar lead the industry with a conversion efficiency of 22.8% for their respective M Series 440 W panel and HiHero 445H-AG panel. Like other electronic equipment, solar panels can overheat. One drawback to solar shingles is that they don't allow as much air circulation underneath the solar cells to cool them. So, while this installation style creates a low-profile look, it also typically comes with lower electricity production.