Solar Tiles

Solar shingles, also called photovoltaic shingles, are solar panels designed to look like and function as conventional roofing materials, such as asphalt shingle or slate, while also producing electricity. Solar shingles are a type of solar energy solution known as building-integrated photovoltaics (BIPV).

There are several varieties of solar shingles, including shingle-sized solid panels that take the place of a number of conventional shingles in a strip, semi-rigid designs containing several silicon solar cells that are sized more like conventional shingles, and newer systems using various thin-film solar cell technologies that match conventional shingles both in size and flexibility. There are also products using a more traditional number of silicon solar cells per panel reaching as much as 100 watts DC rating per shingle.[1]

Solar shingles are manufactured by several companies but the three main manufacturers of solar roof shingles are RGS EnergySolarCity, and CertainTeed.[4] Other active companies in the US include SunTegra Solar Roof Systems.

Solar shingles are photovoltaic modules, capturing sunlight and transforming it into electricity. Most solar shingles are 12 in × 86 in (300 mm × 2,180 mm) and can be stapled directly to the roofing cloth. When applied they have a 5 in × 86 in (130 mm × 2,180 mm) strip of exposed surface. Different models of shingles have different mounting requirements. Some can be applied directly onto roofing felt intermixed with regular asphalt shingles while others may need special installation.

Some early manufacturers used solar thin-film technologies, such as CIGS to produce electricity, which are less common in the solar industry than silicon-based cells. Current manufacturers, such as RGS Energy, CertainTeed, and SunTegra, have chosen to use the industry-standard monocrystalline or polycrystalline silicon solar cells in their POWERHOUSE 3.0, Apollo II, and SunTegra Shingle, respectively. The installation methods for some solar shingle solutions can be easier than traditional panel installations because they avoid the need to locate rafters and install with a process much more similar to asphalt shingles than standard solar panels.

Solar shingled roofs tend to have a deep, dark, purplish-blue or black color, and therefore look similar to other roofs in most situations. Tesla Solar has developed shingles in several styles to better match traditional roofs. Homeowners may prefer solar shingles because they avoid having large panels on their roofs. Coming in 2018 Tesla will offer shingles in slate and Tuscan styles, these are the first of the solar shingles which look the same as a slate or Tuscan style roof but still provide solar power. They also have been “Test video for the highest (class 4) hail rating, filmed at 2,500 frames per second. Each 2″ hailstone is travelling 100 mph on impact.” which shows how these new options are also safer in disasters than tradition materials.

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