Japan advances its offshore wind power sector by developing a 5,000-ton crane-equipped heavy-lift vessel, which will become the planet’s biggest such vessel. POC, together with Fuyo General Lease, initiated a strategic project to construct two state-of-the-art vessels, including the HLV and CLV, which will help Japan speed up its renewable energy transition.
The HLV vessel under construction until 2028 will emerge as the largest vessel of its type with a self-propulsion system to install massive wind turbine monopiles for turbines ranging from 15 to 20 MW. The vessel’s main attribute consists of a 5,000-ton revolving crane system along with a U-shaped stern configuration that minimizes ship movement for safer and more precise installation operations. Seatrium Limited constructed the vessel at JPY 120 billion ($768 million) and included advanced environmental features such as battery storage systems and methanol-ready functions.
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The CLV built by PaxOcean Group at JPY 31 billion ($198.4 million) serves as a power cable layer for bottom-fixed and floating offshore wind farm installations. The vessel operates with the ClassNK DPS2 dynamic positioning system, which uses nine thrusters to maintain stability and precise submarine power transmission.
Japan’s renewable energy plan for general sea areas beyond FY 2028 supports this initiative. The expansion of wind turbine technologies requires these vessels for maintaining efficient installation and connection operations. The investment made by POC and Fuyo Lease demonstrates Japan’s dedication to sustainable energy solutions while solidifying its position as a leader in offshore wind power infrastructure development.