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Macleans.ca

Canada’s magazine

Skyscrapers as energy plants

Within three years, skyscrapers might be powering our homes. A team from MIT has been figuring out how to make solar cells cheap and small. They’ve come up with a type of paint that concentrates the solar power and directs it to a solar cell. They predict that the new dye could be applied to existing buildings, like skyscrapers, so you could retrofit a building into a solar generator without even changing the glass. Once applied, you’d have to tack on a few solar collectors and voila…instant electricity.