We are primarily tasked with providing power transmission services, system services and facilitating the energy market. Our core tasks follow from our appointment as grid operator under the Dutch 'Elektriciteitswet' (E-wet) and the German 'Energiewirtschaftsgesetz' (EnWG).
160-kilometer DC connection for offshore wind power
About the project
The DolWin3 project is the third offshore grid connection in the so-called DolWin cluster. The offshore grid connection connects the wind farms Merkur Offshore and Borkum Riffgrund 2 in the south-western part of the German North Sea with the onshore transmission grid. Around 160 kilometers of cable were laid for this purpose: 80 kilometers each at sea and on land.
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. There it was successfully installed over several days on the substructure already installed in 2016 - the so-called Jacket. The 900 megawatt (MW) grid connection is in operation since September 2018. With DolWin3, more than one million households can be supplied with clean wind energy.