GE completes successful upgrade of DolWin3 offshore platform

Oct 15, 2020
Posted by Patrick Haddad

GE Renewable Energy’s Grid Solutions business has announced the successful upgrade of the offshore grid connection DolWin3 in the North Sea.

The upgrades included enhancements to the valves and control system. In addition to improving the overall performance of the grid connection system, the upgrades also reduce maintenance.

Located approximately 80 kilometers from land, DolWin3 with the offshore converter platform DolWin gamma connects the wind farms Merkur Offshore, containing 66 Haliade 150-6MW GE Renewable Energy wind turbines, and Borkum Riffgrund 2 in the south-western part of the German North Sea with the onshore transmission grid.

“The offshore grid connection DolWin3 has been transferring power from wind generation in the North Sea to the German grid since the third quarter of 2018. The updates that have recently been tested and certified give us confidence that our grid connection will still be stable and reliable in the future as we move toward our ultimate renewable energy goals in the future,” said Marco Kuijpers, Director Large Projects Offshore of TenneT. “In all these years of trustful cooperation, we have always had a solution-oriented partner in GE.”

“The completion of the final certification tests for DolWin3, along with our recent award of the Sofia HVDC link, are further evidence that GE’s Voltage Source Converter technology is now well established and that GE has the ability to commercially deliver on these solutions,” said Raj Iyer, Head of Grid Integration Solutions for GE’s Grid Solutions business. “The DolWin3 upgrades incorporate learnings from our recently released industry leading second-generation VSC valve and eLumina™ control system.”

In July 2017, the heart of the DolWin3 grid connection, the DolWin gamma converter platform, was installed at sea. The platform, built in Warnemünde, Mecklenburg-Western Pomerania, covered a six-day journey along the German and Danish coasts to its final location in the North Sea. Just over one year later, in the third quarter of 2018, the 900-megawatt (MW) grid connection was put into operation, supplying more than one million households with clean wind energy.

Source: GE

Image: DolWin gamma installation / Tenet Press / Tenet


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