Turnkey construction of 2 AC grid connection systems to connect the offshore wind farms Kaskasi II (approx. 342 MW) and Gode Wind 3 (approx. 242 MW) to the associated HVDC sea stations. The scope comprises all works from design to manufacturing, delivery and installation up to operational commissioning of a secure and high availability transmission of electrical energy from the grid connection points at the HVDC offshore station to the AC grid connection points on the OWF (Offshore Wind Farm) station. The delivery includes among others AC subsea cable, AC platform cable, fibre optic cable and all systems, auxiliary facilities and components required at the offshore wind farm.

A detailed description of the scope of delivery and services to be provided for the individual projects Kaskasi II and Gode Wind 3 can be found in the following sections of this notice, in particular Section II.2.4).

Lot 1 comprises the construction of the Kaskasi II grid connection system.

With the Kaskasi II project, TenneT is planning to install a three-phase electric power connection in North Sea Cluster 4. The three-phase electric power generated by the Kaskasi II offshore wind farm is to be transported to the HelWin beta HVDC sea station with 2 AC subsea cables.

The content of the tender is the turnkey and operational construction of the AC grid connection system required for this. The associated cable system consists, in particular, of AC 3-wire subsea cables with integrated fibre optic cables, casing collars and cable sealing boxes. In addition the scope of the delivery and services includes the planning, construction, production, delivery, building, installation and commissioning, as well as all systems, auxiliary facilities and components which are required for the safe and high availability operation of the AC grid connection system.

Lot 2 comprises the construction of the Gode Wind 3 grid connection system.

With the Gode Wind 3 project, the client is planning to install a three-phase electric power connection in North Sea Cluster 3. The three-phase electric power generated in the Gode Wind 3 offshore wind farm is to be transported to the DolWin kappa offshore converter platform with an AC subsea cable.

The content of the tender is the turnkey and operational construction of the AC grid connection system required for this. The associated cable system consists, in particular, of AC three-wire subsea cables with integrated fibre optic cables, casing collars and cable sealing boxes. In addition the scope of the delivery and services includes the planning, construction, production, delivery, building, installation and commissioning, as well as all systems, auxiliary facilities and components which are required for the safe and high availability operation of the AC grid connection system.