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Invisible solar energy

More and more houses are being built with solar panels on the roofs and photovoltaics embedded in the façades, which can deliver the entire energy needs of the inhabitants. The homes are designed to blend in with their surroundings. It addresses the need to find energy alternatives, but the technology is still expensive. (SRF/swissinfo.ch) 

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SWI swissinfo.ch - a branch of Swiss Broadcasting Corporation SRG SSR