Equipped with a 3000-tonne leg-encircled Huisman crane, Jan de Nul’s jack-up vessel Voltaire is pioneering the role of jack-up vessels in the offshore wind market. With increasing size of foundations and turbines, the industry has over the five years relied on heavy-lift vessels to install the largest foundations. With the 3000-tonne lifting capacity of Voltaire, it can carry heavy loads in quantity and lift heavy monopiles, jackets and turbines. If large-crane jack-ups become the norm in the offshore wind industry, we might not to see many newbuild purpose-built heavy-lift vessels in the coming years.