Amprion Offshore has awarded contracts to Siemens Energy Global and Dragados Offshore to build the converter stations for the DolWin4 and BorWin4 offshore grid connection systems off Germany.
The partners are to build two converters each at sea and onshore.
The award also includes maintenance for 10 years to be carried out by Siemens Energy.
Amprion Offshore managing director Peter Barth said: “With Siemens Energy and Dragados Offshore, we are awarding the contract to two companies that are experienced in the construction of converter stations.
“This was particularly important to us in our first two offshore projects.”
He added that the partners impressed with their performance, solution orientation and market-driven conditions.
They have also agreed to complete BorWin4 in 2028 – one year earlier than planned.
He said: “In this way, Siemens Energy, Dragados Offshore and Amprion Offshore are making an important contribution to accelerating the energy transition.”