Barbarossa I’s maiden voyage for Prysmian Group has been to the tidal flats of the northern coast of Germany, where Prysmian Group is installing approximately 130 kilometers of land and submarine cables for the DolWin5 offshore grid connection project commissioned by transmission system operator TenneT. The turnkey connections will link the offshore converter platform DolWin epsilon, located approximately 100 km off the German coast in the North Sea, to the mainland Emden/Ost converter station, with the purpose of transmitting the generated renewable energy into the German grid.
For an EPCI contractor like Prysmian, every project is unique. In the case of DolWin5, the route calls for three different vessels depending on water depth. The final stretch of the installation took place in the very shallow waters of the Wadden Sea that runs along the coasts of Denmark, Germany and the Netherlands. Near the shore, the water is only around 1.5-2 meters deep, and comes and goes with the tides, meaning that only smaller barges like Barbarossa I are suitable. Prysmian Group can use Cable Enterprise for the deeper waters at 60 kilometers from the shore. For the intermediate distance of 30 kilometers from shore, the 136-meter-long Ulisse can do the job. And Barbarossa I took over for the final 4 kilometers nearest the coast.