Vessel typeFoundation Installation Vessels
Built byChina Merchants Heavy Industry (CMHI), China
Owned bySeaway 7
Designed byUlstein Design & Solutions B.V.
- 216.3 m
- 56 m
- Draught (max):
- submerged 27.6 m
- Speed (max):
- 13 kn
- 100 POB
Note: Subject to selected variant configuration
- Propulsion thrusters:
- 3 x 5,500 kW
- Retractable thruster:
- 1 x 3,000 kW
- Tunnel thrusters (fwd):
- 3 x 3,000 kW
- Liebherr main crane:
- 3,000 mt
- Deck strength:
- 30 t/m²
- Positioning system:
- DP 2
The vessel is constructed by China Merchant Heavy Industry (CMHI) for delivery in 2022. The vessel’s capabilities match the future requirements of the offshore wind industry, allowing her to transport and install up to 10 x 1,500t ultra-large jacket foundations or 11 x 2,000t XXL monopiles plus transition pieces for the largest anticipated Wind Turbine Generators.
The 'Seaway Alfa Lift' will be capable of installing all types of bottom-fixed offshore wind foundations and will also transport and install topsides and subsea modules, in addition to other heavy cargoes within oil and gas.
The vessel’s crane will have a maximum lifting capacity of 3,000 tonnes at 30 metres and 1,000 tonnes at 76 metres outreach. The 216.3-metre vessel will also have a 10,000+ m² “smart deck” that can carry up to 14 giant monopiles per trip and will be fully submersible to a depth of 14.66 metres.
March 2019: Steel cutting
October 2019: Keel laying
January 2020: Nominee for the Offshore Renewables Award
February 2021: Launching at the CMHI yard
October 2021: The new build was originally ordered by OHT (Offshore Heavy Transport). OHT has merged with Subsea 7’s renewables business unit to become Seaway 7 effective from 1st October 2021.
'Seaway Alfa Lift' will transport and install all monopile foundations and transition pieces for each of the two 1.2GW phases of the project between 2022 and 2024. The Dogger Bank Wind Farm is being developed by SSE Renewables and Equinor, with the first power expected in 2023.
Please contact us for more information