According to Tesla Solar Shingles, "Solar Roof complements your home’s architecture while turning sunlight into electricity. With an integrated Powerwall battery, energy collected during the day is stored and made available any time, effectively turning your home into a personal utility. Glass solar tiles are so durable they are warrantied for the lifetime of your house, or infinity, whichever comes first."
Tesla says the tempered glass is “tough as steel,” and can weather a lifetime of abuse from the elements. It can also be fitted with heating elements to melt snow in colder climates. “It’s never going to wear out,” Tesla CEO Elon Musk said, “It’s made of quartz. It has a quasi-infinite lifetime.”
In a Q&A with reporters after the presentation, Musk said the tiles are comparable to competing high-efficiency solar panels. The current prototypes that Tesla engineers are working with reduce the efficiency of the underlying solar cell by just 2 percent. With further refinement, Musk said he hopes the microscopic louvers responsible for making the tiles appear opaque can be used to actually boost the efficiency of standard photovoltaic cells.
This is big news for homeowners. This new advancement will not only protect your home from water and storm damage, but simultaneously save you money on electricity and help the environment.