Telephone : 020-8234-3000

Email : [email protected]


Hohe See Substation

Continuing our close collaboration with Iemants Staalconstructies in Belgium, SLPCL were commissioned 
to carry out the detailed design of the jacket foundation for the offshore substation at the proposed 
Hohe See Wind Farm in the German North Sea.

The relatively large 4250 tonne topside will be supported by the jacket, alongside 18 J-tubes and 
two boat landings, in a water depth of 40 metres. The wind farm itself will have a maximum operating 
capacity of 497MW.

Once again, as a German project, the stringent BSH regulations apply. An unusual feature of this 
standard is to mandate carrying out much of the structural design to Eurocode 3 – the standard 
structural building code for onshore structures. Careful application of this code was required to 
avoid unintended consequences, with SLPCL carefully coordinating with the verification body for the 
project, DNVGL, to ensure compliance.

From a geotechnical perspective, the BSH standard includes a range of onerous requirements in relation 
to pile testing. SLPCL proposed a novel approach to the pile design which minimised the offshore pile 
testing, and thus vessel waiting time, whilst adhering to the code and ensuring that the pile would 
remain driveable. 

Latest News

Hohe See Substation

A further substation for the German North Sea


Merkur Offshore Substation

SLPCL design 1800 tonne Substation Jacket for new German Windfarm


Topsides Meets Jacket

The new Montrose topsides and bridge-link are installed onto existing jacket