In a small workshop near Vicenza, Italy, artisans make traditional-looking roofing tiles with a hidden difference: Each module contains solar photovoltaic cells.

The Invisible Solar Rooftile is made by an unique indivisible piece, with a very high resistance, that hides and protects the photovoltaic cells that are incorporated inside
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https://www.fastcompany.com/90836947/these-terracotta-tiles-blend-in-perfectly-with-italian-roofs-but-theyre-really-solar-panels