Prysmian to power up German offshore wind supply

The project also forms part of the aim to transfer the energy generated in the North Sea to consumers in the eastern and southern regions of Germany.

“We are happy to collaborate and strengthen our partnership with 50Hertz on these important projects and contribute to the German ‘Energiewende’ with our solutions and experience, supporting the growth of green energy use in Germany and around the world,” commented Hakan Ozmen, EVP Projects BU, Prysmian Group.

State-of-the-art

As part of the 50Hertz “long-term EPCI contracts for HVDC cables” tender, Prysmian has received an award for Lot2 — which includes EPCI contracts for the NOR-11-1 submarine and DC31 land projects – along with Lot7.

Under Lot2, Prysmian will be responsible for the design, manufacture, supply, installation, testing and commissioning of the two turnkey projects NOR-11-1 and DC31 with an overall cable length of around 1,000 km.

With a power transmission capacity of 2GW, NOR-11-1 is a 525 kV HVDC submarine project utilising submarine cable plus underground cable along the route that is planned to connect the offshore windfarm area N-11-1 to the German grid in the Heide/West area.

The second project of Lot2, the DC31 is a 525 kV HVDC underground cable project and is planned to transmit power from the Heide/West area to Klein Rogahn.

Both submarine and land HVDC (High Voltage Direct Current) ±525 kV cable systems will consist of two single-core copper cables with XLPE insulation plus a dedicated XLPE metallic return (DMR) cable and a fibre optic cable. Submarine power cables will be produced at the group’s centres of excellence in Pikkala, Finland and Arco Felice, Italy.

The submarine fibre cables will be manufactured in Nordenham, Germany. The underground power cables covering both the DC31 and the underground part of the NOR-11-1 project will be produced in France.

In addition, Prysmian has been awarded as primary supplier also for Lot7, which consists of a framework provision allowing 50Hertz to contract future 525 kV offshore and/or onshore projects with a cable core length volume of up to 2,700 km within an agreed period.

Prysmian will leverage its fleet of state-of-the-art cable laying vessels to perform the marine installation operations, including the laying and burial of offshore cables.