Bloomberg . Musk introduced the concept to industry leaders and brand fans last year. The shingles are topped with a strong glass that allows light to pass through to specially designed miniature solar panels, allowing homes access to affordable and visually attractive off-the-grid electricity. A group of the Tesla employees signed up for prototype testing, and the company will be ready to begin installing the shingles in the coming months. “It may actually do well in overseas markets where solar-photovoltaic is cheap and homeowners are used to paying a premium for building materials and cars — such as Australia,” Hugh Bromley, from Bloomberg New Energy Finance, said. Comparatively, opting for the Tesla roof is more expensive than using traditional materials, but not by an overwhelming margin. Bromley estimates that a 2,000-square foot home would require $57,000 worth of Tesla tiles, whereas a terra cotta roof with solar panel add-ons […]