TenneT has issued a call for tenders for the turnkey construction of two AC grid connection systems to connect the 342MW Kaskasi II and the 242MW Gode Wind 3 wind farms in the German North Sea 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 offshore wind farm station.
The delivery includes among others an AC subsea cable, an AC platform cable, a fibre optic cable, and all systems, auxiliary facilities, and components required at the offshore wind farms.
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 two AC subsea cables.
For the Gode Wind 3 project, TenneT 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 tender remains open until 12 March.