Converter platform DolWin gamma installed at sea

Thursday, 20 July, 2017 - 10:00
Now installed, the converter sits 66 feet above the waves. (Photo: TenneT)
Now installed, the converter sits 66 feet above the waves. (Photo: TenneT)

TenneT and GE have successfully installed the DolWin3 offshore converter station in the south-western German North Sea, approximately 80 kilometers from land.

The converter platform left Warnemünde in Mecklenburg-Vorpommern and underwent a 6 day journey along the German and Danish coastlines to reach its final destination, which was only made possible in good weather. Tugboats — one pulling and two helping steer and brake — moved the converter station, which weighs around 18,000 tons, from the Baltic Sea dock westward out into the German North Sea. Once at the location, a special installation ship used hydraulics to lift the block onto a platform that sits on 18 pylons that have already been drilled into the sea floor.

The project, awarded to GE as the main contractor by the transmission system operator TenneT, will connect two wind farms, which will be able to supply over one million German households with clean power. The converter will harness power from as many as 180 wind turbines, including 66 GE Haliade 150-6MW wind turbines in the Merkur wind farm, in the North Sea. It will be sending 900 MW of power back to shore.

Wilfried Breuer, TenneT Member Executive Board, said: “The converter platform is one of the biggest visible indicators of the German energy transition. Flagship projects like DolWin3 are crucially important to transfer wind energy from the north to power customers and to make sustainable energy a reality.”

Patrick Plas, General Manager, HVDC and FACTS, Grid Solutions from GE Power, added: “DolWin3 is GE’s first offshore HVDC project. The technology represents a crucial turning point for offshore wind, renewables, and how we are able to move that energy efficiently from where it is being generated to the customer, with significantly lower losses over long distances.”

DolWin3 is the tenth out of twelve grid connections to be implemented by the German transmission system operator TenneT.

TenneT / GE / Funke


 

Similar Entries

Bluesath floating wind installation (pict. Saitec)

Bluesath floating wind platform has been installed and commissioned in its final deployment site in El Abra del Sardinero (Santander, Spain).

Working closely with platform manufacturer Aibel, Dogger Bank Wind Farm will use an unmanned HVDC substation design – a world-first, slashing weight and cost. Upon first installation in Dogger Bank A during 2023, the project’s HVDC facility will also become the largest-ever at 1.2GW, marking a tremendous scale up from the previous industry benchmark of 0.8GW (pict.: Aibel)

Dogger Bank Wind Farm is breaking yet more records as the project announces a revolutionary platform design, unveiling the world’s first unmanned High Voltage Direct Current (HVDC) offshore substation.

Van Oord’s offshore installation vessel Aeolus will be used on Sofia (pict. RWE Renewables)

RWE, the world’s number two in offshore wind, has advanced the development of Sofia Offshore Wind Farm. The company has selected the international marine contractor Van Oord as the preferred supplier for the engineering, procurement, construction and installation (EPCI) of the monopile foundations and array cables, for one of the world’s largest offshore wind projects.

MHI Vestas and Total formally announced their involvement in the Eolmed project this week (pict. Ideol)

MHIV and Total formally announced their involvement in the Eolmed project this week. These internationally recognized leaders and the project developer QAIR have agreed to combine their respective know-how’s and efforts to successfully develop and execute this 30MW pilot project.