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Find out if solar panels will help you with Google's heat map
According to Google, it has analyzed 60 million buildings and determined that 79 percent of rooftops of those buildings get enough sunlight to make solar panels viable. Also, fun fact: Houston has the most solar potential of any US city, followed by ...
Forget solar panels, your home could one day be heated using hot sand
Italian company Magaldi is exploiting that fact to harvest solar rays in a novel way. Its Solar Thermo Electric Magaldi (STEM) system, in Milazzo, Sicily, uses an array of 786 seven-square-metre heliostats to reflect sunlight on to a large mirror. This ...