Heerema installs offshore wind platform

Heerema Marine Contractors‘ (HMC’s) deepwater construction vessel Thialf installed the 10,300-tonne topside for the HelWin2 wind energy project in the German part of the North Sea. Thialf had already installed the project’s 4,500-tonne jacket in early May.

The topside, measuring 111 meters in length, 45 meters in width, and 28 meters in height, was installed in 24-meter-deep water in the HelWin cluster in the eastern North Sea, close to Helgoland.

Both jacket and topside were designed and built for Siemens by Heerema Fabrication Group (HFG), which was responsible for the Engineering, Procurement, Construction, and Installation (EPCI) of the platform.

Experience, methods prove their value

The platform was designed and built according to the robust and predictable methods that have proven themselves during Heerema’s 50 years of experience in the oil and gas industry on the North Sea.

We are very proud to work with our colleagues at HFG in this successful project, which was delivered on schedule, according to specification, and within budget. It once again demonstrates the value of our proven methods and many years of experience with installations in the North Sea, says HMC’s CEO Jan-Pieter Klaver 

Thialf installing the HelWin beta topside in the Geman North Sea

The platform is equipped with Siemens’ High Voltage Direct Current (HVDC) technology, which provides a low-loss transmission of generated wind power. The converter platform is one of the most important aspects of the TenneT DC offshore grid connection HelWin2. The offshore converter station’s 690 MW transmission capacity will supply power to 700,000 homes in Germany from 2015 onwards.

For more information visit the website Heerema Marine Contractors.

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