Apollo II Solar Roofing System
Backed by CertainTeed with a 25 year warranty Apollo II Solar Roofing modules feature 14 high-efficiency monocrystalline silicon solar cells for a power rating of 54 watts per module. Its slim profile provides a clean integrated roofing look that a rack mounted system cannot match. Apollo II modules have achieved a Class A fire rating when installed in accordance with the installation manual.
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.
Installers can complete traditional solar panel installations in just a few hours; the installation process for CertainTeed solar shingles is more complex. According to CertainTeed, their shingles "function both as the roof covering and the solar PV collector." However, unlike Tesla's solar roofing options, CertainTeed's offering works with your existing roof, so it doesn't require total replacement.
If your primary concern is finding a truly "hidden" solar power installation, Tesla is the leading company offering a "solar roof" with solar cells that are essentially invisible from ground level. However, because CertainTeed shingles are integrated into the roof rather than installed on top of it, they are much lower profile than a standard solar panel system.