Just on its own, Horns Rev 3 can generate enough power for the annual consumption of 425,000 Danish households. The construction of the new offshore wind farms – plus a number of smaller farms nearer to the coast – shall help to realise the ambition of getting half of the Danish electricity supply to come from wind power by 2020.
Based upon the political decision to establish Horns Rev 3, the Danish Energy Agency determined the placement and the size of the area, while Energinet.dk produced the plan for the placement of the transformer platform at sea and the route of the submarine cables, as well as leading it to land and the connection to the electricity network.
Many years of preliminary studies lie behind the establishment of Horns Rev 3. In 2013 and 2014, the Danish Energy Agency drafted an Environmental Impact Statement (EIS) and released it for consultation to both public authorities and the general public. At the same time, designs were drawn up of air systems, cable plants and substations on land. Permission was granted for the establishment of a transformer platform and submarine cable.
At the start of 2015, Vattenfall was granted a concession on the construction and operations of Horns Rev 3. In 2016, air systems, cable plants and substations on land were established. At the same time, a 220 kV submarine cable and a transformer platform parallel to it were installed in the middle of the wind farm area.
The major work of establishing the turbine foundations will take place in 2018. In order to ensure that the ocean currents do not erode the seabed around the foundations, protection will be laid around the foundations.
Setting up the wind turbine towers and engine housing will start in 2018, together with the rotor blades. Concurrent to this, the wind turbines are connected to the electricity network, and subsequently, as the set-up and connection to the network progresses, the wind turbines are put into operation and will start generating renewable energy.
The set-up and connection to the electricity network shall be completed by the end of 2019, so Horns Rev 3 will be up and running at full power in 2020.