ABB to equip Allseas’ new offshore converter station transport vessel
ABB has secured a contract with Guangzhou Shipyard International (GSI) to supply the power and propulsion package for Allseas’ new semi-submersible heavy transport vessel Grand Tour, designed for carrying offshore converter stations.
The 230-metre vessel, scheduled for delivery in 2028, will be capable of transporting loads of up to 40,000 tons on its stern deck and is designed to lower its main deck below the waterline to load large converter stations before transferring them to Allseas’ vessel Pioneering Spirit for offshore installation.
Allseas placed an order for the construction of Grand Tour with China’s GSI in September 2025.
Under its contract with GSI, ABB will deliver four 3.5 MW Azipod propulsion units, which will provide the thrust required for the vessel’s bollard-pull and dynamic positioning (DP) operations. The electrically driven units can rotate through 360 degrees, allowing Grand Tour to maneuver into position alongside Pioneering Spirit and maintain its position during load-transfer operations.
The power and propulsion package also includes a medium-voltage AC power plant in a closed-ring configuration, ABB’s PEMS power and energy management
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