The Roman city of Pompeii is one of the most impressive archaeological sites in the world. It’s visited by millions of people who want to see the still intact elements of architecture from Roman times. But for all this, you need electricity and lighting. Conventional lighting systems are pretty expensive for such a large area and they also take away some of the charm of the site. So instead, the team managing the site is opting for a new solution: photovoltaic (PV) tiles that look just like the Roman ones. “Pompeii is an ancient city which in some spots is fully preserved. Since we needed an e…