The components
Vineyard Wind uses GE Renewable Energy’s industry leading Haliade-X wind turbine generators, the most powerful in operation to date, with up to 13 megawatts of power and a height of 248 metres. Each of these turbines can save 52,000 tonnes of CO2 per year and in a single rotation generates energy for a home in Massachusetts for an entire day.
Meanwhile, Windar Renovables has been responsible for manufacturing 62 wind turbine foundations. The contract, worth around €100 million, has led to approximately 400 jobs (500 at peak times) at the plant in Asturias (Spain).
The Italian Prysmian Group, after entering into an agreement worth €200 million, was responsible for the commissioning of the submarine cabling system that will connect the offshore wind farm with the Continental US power transmission grid. The project required a total of 134 kilometres of high voltage alternating current electric cable.
The U.S. company Southwire was in charge of the design, manufacture and installation of the more than 51 kilometres of high-voltage overland cable. The cable has been manufactured at the Southwire plant in Huntersville (North Carolina), which will use avant-garde technology to produce high and extra-high-voltage cables ranging from 69 kV to 500 kV.
In July 2023, the installation of the offshore substation, which will serve the entire Vineyard Wind I project, was completed. It is the first substation of its kind installed by Iberdrola in the United States and the sixth in the world, weighing more than 5,000 tonnes, making it the largest the company has ever installed.