Steelwind Completes Monopile Production for He Dreiht Offshore Wind Farm

The last monopile destined for installation at the 960 MW He Dreiht offshore wind farm has been manufactured by Steelwind Nordenham, a Germany-based company.

Steelwind Nordenham He Dreiht monopiles
Source: Steelwind Nordenham via LinkedIn

EnBW, the developer of the project, selected Steelwind Nordenham to deliver 64 monopiles for the offshore wind farm in May 2022.

The units have a diameter of 9.2 metres, a length of up to 71 metres, and a weight of up to 1,400 tonnes.

The monopile foundations will support Vestas’ flagship V236-15.0 MW wind turbines. He Dreiht will be the first project to feature this model.

Heerema Marine Contractors will be responsible for the transport and installation of 64 monopiles and transition pieces under a contract signed with EnBW in April 2022.

According to the company, during the operations, Heerema will use the IHC IQIP double-walled noise mitigation system NMS-10,000 amongst other systems to reduce noise pollution.


The He Dreiht offshore wind farm has a grid connection capacity of 900 MW and an excess capacity of 60 MW in order to use the connection capacity as efficiently as possible, even when production is lower.

The project is located 85 kilometres northwest of the Island of Borkum and 110 kilometres west of Heligoland.

Once operational in 2025, the wind farm will generate green electricity for the equivalent of 1.1 million German households.

EnBW is the majority owner (50.1 per cent) and the developer of He Dreiht. The consortium consisting of Allianz Capital Partners on behalf of Allianz insurance companies, AIP and Norges Bank, holds the remaining 49.9 per cent in the wind farm.


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