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It's important to note though, that the 20 percent solar panel rule isn't going to magically save you 20 percent off your ...

Scientists have developed a new type of high-efficiency solar cell that replaces the rare and expensive metal indium with much cheaper tin, an advance that could help lower the cost of future solar ...

Solar is no longer just a way to trim your utility bill; for many homeowners it is a serious contender to keep the lights on when the grid goes dark. Whether panels can truly stand in for a gas or ...