Dogger Bank Offshore Wind Farms has selected Offshore Heavy Transport as its preferred supplier for foundation installation
The Dogger Bank offshore windfarms are a joint venture between SSE Renewables and Equinor and will have a total capacity of 3.6 GW.
OHT’s Alfa Lift vessel, which is currently under construction, will transport and install the monopile foundations and transition pieces for Dogger Bank’s Creyke Beck A (1.2 GW) and Creyke Beck B (1.2 GW) windfarms.
Utilising a single vessel, the foundations will be transported to the offshore site, approximately 130 km off the northeast coast of England, and installed in water depths of up to 35 m.
The Alfa Lift heavy installation crane vessel will carry 10 monopiles and transition pieces on deck per voyage.
The monopile foundations will be the base for GE’s Haliade-X 12-MW turbines.
Dogger Bank Wind Farms project director Steve Wilson said, "The monopiles that will be installed at Dogger Bank will be among the largest ever used on an offshore windfarm and we needed a vessel that would allow us to deliver our project in the safest and most efficient way.
“OHT’s Alfa Lift’s capability offers us this solution and we look forward to working with them.”
Transport and installation of the monopiles and transition pieces for Creyke Beck A and Creyke Beck B is expected to be undertaken between 2022 and 2024.
The Creyke Beck A and Creyke Beck B projects are now moving towards final investment decision, expected in 2020. SSE Renewables will lead the development and construction phases of Dogger Bank Wind Farms and Equinor will lead on operations once completed.