Sun Volt

With the roof angled at 43 degrees, the architects lined the southern slant of the house with solar panels to collect as many rays as possible. Karanesheva and Witzmann started with four, but then added 23 more, all by Systaïc; the company gave them a deal since theirs was its first installation in France. The panels now collect far more energy than the home actually needs, a precious resource that the pair sells back to the power company.

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