GENNAKER 1 & 2 OHVS for TSO 50 HERTZ – 2 X 450 MW

Two platforms Gennaker 1 (West) and 2 (East) by 50Hertz for the Gennaker offshore wind farm in the German Baltic Sea.

Client TSO 50 Hertz
Location German Baltic Sea
Contract EPCIC
Contract Award Februari 2023
Completed Sail Away Q4 2026 Take-over mid 2027
Consultant/Engineer Iv-Offshore & Energy

Project information

With a total capacity of 927 MW, this will be the largest and most powerful offshore wind farm in the Baltic Sea. The consortium HSI (HSM Offshore Energy, Smulders and Iv-Offshore & Energy) are responsible for the engineering, procurement, construction and installation of both substations and jackets. The substructures of the Gennaker OSS is a steel construction supporting the topside with 6 legs with 6 piles (i.e. 1 at each leg). It is designed as a Pile through Leg design for shallow water and to be transported in a vertical orientation on a barge and installed by dual crane lift with ILT’s and floating spreader bars. The substructure height is approx. 33 metres.

  • Topside 68x37x21 metres (lxwxh) each
  • Jacket 40x28x33 metres (lxwxh) each
  • Piles 96 inch, length 106 metres
  • Topside 5300 MT each
  • Jacket 3700 MT each
  • 450 MW each

Next project

See all projects

Ostwind 3 OHVS

Under Construction – Mid 2026
Scroll to discover