solar panels on the villa’s roof are flat and lie between traditional ceramic curved tiles

cover 70sqm of roof, produce a maximum of 13 kilowatt-hours and are linked to an ecologically-friendly sodium battery

Pompeii, which gets over 15 hours of sunlight a day in peak summer, intends to extend its use to other villas in the archaeological site

5 per cent less efficient than a traditional solar panel.

cost is a bit more than the price of a new roof and traditional panels put together — though the solar tiles, which last between 20 to 25 years, serve double duty because they function as a roof too



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