MOL Takes Delivery of 120 Person Commissioning Vessel to Power Taiwan’s Offshore Wind Buildout

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Mitsui O.S.K. Lines took delivery on May 4 of the TSS Cruiser, a newbuild commissioning service operation vessel that will support the construction and commissioning of offshore wind farms in Taiwan, marking a significant expansion of Japanese shipping capital into Asia’s most advanced offshore wind market.

The vessel, built by Damen Shipyards at its yard in Ha Long, Vietnam, is the second SOV operated through Ta San Shang Marine Co., Ltd. (TSSM), a joint venture between MOL and Taipei based Ta Tong Marine Co., Ltd. It follows the TSS Pioneer, delivered in 2022 as the first purpose built SOV in Asia.

The TSS Cruiser represents a step up from its predecessor in both scale and capability. Where the TSS Pioneer was designed primarily for maintenance support, the new vessel is configured for the more demanding construction and commissioning phases of offshore wind development.

Accommodation capacity has been increased from roughly 90 to 120 personnel, allowing larger technician crews to remain offshore for extended rotations. Crane capability has been upgraded, and the working deck offers more space to support light construction and decommissioning tasks.

Notably, the vessel features a methanol ready design, positioning it to switch to low carbon fuel as availability and regulations evolve. That forward looking specification aligns with MOL’s corporate environmental strategy, branded “BLUE ACTION 2035,” which targets expanded participation in low and zero carbon businesses.

Like other modern SOVs, the TSS Cruiser is equipped with a dynamic positioning system to maintain safe station near turbine platforms and a motion compensated gangway, sometimes called a “Walk to Work” system, that absorbs hull movement from wind and waves, so technicians can transfer safely between the vessel and turbine structures.

Taiwan remains the most developed offshore wind market in the Asia Pacific region and has attracted a wave of international investment in recent years. The island’s government has set ambitious targets for installed capacity, and multiple large scale wind farm projects are in various stages of construction and planning along its western coast.

MOL’s decision to deploy a higher specification vessel reflects the market’s shift from early operational projects to a broader construction phase, where demand for specialized tonnage is intensifying. The TSS Pioneer has been serving the Greater Changhua wind farm complex, and the TSS Cruiser is expected to support a wider range of projects across Taiwan’s offshore wind pipeline.

MOL signaled that its SOV strategy extends well beyond the Taiwan Strait. The company said it plans to expand its SOV fleet with an eye on the Japanese market and the broader Asian region, where governments in South Korea, Vietnam, and elsewhere are accelerating their own offshore wind ambitions.

Jotaro Tamura, President and CEO of MOL, has positioned the offshore wind logistics segment as a growth pillar within the company’s diversification strategy. The partnership with Ta Tong Marine, led by Chairman Hrong Nain Lin, gives MOL a local foothold in Taiwan’s maritime and energy sectors through a shipowner with deep experience in the island’s waters.

Damen Shipyards, headquartered in the Netherlands, built the vessel at its Vietnam facility, where the yard has established a track record constructing complex offshore units. The Dutch builder operates more than 30 shipyards and affiliated companies worldwide and has become a go-to supplier for SOVs, crew transfer vessels, and other specialized offshore tonnage.

The delivery of the TSS Cruiser underscores a tightening market for offshore wind support vessels across Asia, as developers compete for limited specialized capacity during a period of accelerating project timelines and growing installation targets.