As the name suggests, wind turbine installation vessels (WTIVs) are dedicated vessels for installing wind turbines. With wind farms moving further out to sea and increasing in size, WTIVs are getting larger, with a need for advanced dynamic positioning to ensure vessels stay in place in demanding conditions. Depending on the application, WTIVs can be either jack-up or floating, with weight considerations critical for jack-up vessels. As they are working in the renewable energy sector, the environmental footprint of these vessels is a key consideration, with high efficiency and low carbon emissions essential. WTIVs should also be fully digitised, connected and highly automated to be ready for the challenges of the future.