Most people will be surprised, but Italy was the first country in the world to build motorways. In fact, the A8 “Milano-Laghi” motorway (“Milan-Lakes”, as it connects the city of Milan to Lake Como and Maggiore) was completed in 1926. Time has passed and all developed nations now boast wide motorway networks, a strategic infrastructure that helps interconnecting people, places and is ultimately essential to economic growth. But Italy will soon be able to claim a new “first”: the A18 Catania-Siracusa motorway, a 30km addition to Sicily’s 600km motorway network, will be a fully solar-powered motorway, the first in its kind.

A very interesting and controversial study emerged recently, comparing nuclear and solar costs no less. The study focused on the costs of electricity in North Carolina (US), describes the solar photovoltaic (PV) business, summarizing its history of sharply declining prices, along with the very different path taken in recent years by nuclear power, whose costs have been steadily rising.