Each year, millions of tourists from around the world visit Pompeii. They admire its frescoes and archaeological ruins, but few of them ever notice the solar panels installed on the roof of the ancient Roman Villa of the Mysteries. “Here we can see one of the roof tiles above us,” says Gabriel Zuchtriegel, Director of the Pompeii Archaeological Park, holding one up. “From this side, it looks just like an ancient Roman tile. But if we look at it from behind, we can see that it is actually a small photovoltaic panel. It generates electricity to illuminate this villa, and a large share of the energy needed here comes directly from the roof installation.” Developed by the Italian company Visen, these photovoltaic tiles could soon be deployed on other buildings within the Pompeii Archaeological Park that are not connected to the electricity grid. Beyond their practical applications, the initiative is part of a broader commitment to sustainability, aimed at reconciling environmental responsibility with the preservation of Pompeii's invaluable heritage. “The landscape is a fundamental part of our heritage,” says Zuchtriegel. “Protecting the landscape means, of course, restoring cultural sites and monuments appropriately, but it also means taking the environment into account. And this is an example of how these two aspects can be brought together.” The Portuguese city of Évora shares similar concerns and has installed comparable photovoltaic tiles on the roof of its City Hall. “They are not normal shingles,” explains Humberto Queiroz, EDP Project Manager. “They are made of a semi-transparent epoxy material with solar cells embedded in the middle of it, which generates electricity for the self-consumption of this building. Around this area we have around 20 kilowatt-peak of PV shingles installed. Their objective is to blend into the architectural landscape of this building and preserve the