yrtnefoaerATechnology development (fixed-bottom type)Technology development (floating type)Capital investmentEstablish work implementation system, acquire and cultivate human resourcesBusiness promotion systemSubsea cable ROV trencher (Photo provided by SMD)Fixed-bottom technology development and technical certification (suction foundation)Floating body technology development and technical certification (TLP = Tension Leg Platform method)Consider purchase of cable-laying vesselConsider purchase of large work vesselConsider and pursue technology collaboration with foreign companiesFY2024Construction of Japan’s largest self-propelled, cable-laying vesselThe cable-laying vessel, scheduled for completion in 2026, features an optimal hull design suited to Japan’s marine topography and our construction specifications. This design will allow high-operating-rate construction in diverse ocean environments, from shallow waters to very deep waters, where floating offshore wind power generation and DC power transmission projects will take place.Development of subsea cable-burying technologySince offshore wind power facilities extend over an extremely wide area, the construction process must adapt to changes in the seabed. Toyo Construction is working with Sekikaiji Industry Co., Ltd., which has an extensive track record and know-how in subsea cable construction, to develop construction technology for burying subsea cables.Teruhisa Izumi Executive OfficerGeneral Manager, Offshore Wind DivisionGross tonnage: approx. 19,000 t; thrust power: approx. 13,000 kw; DPS Class 2Ship’s classification: Class NKAccommodation capacity: 90 persons (all private rooms, fully equipped with shower & toilet)150 m long x 28 m wide x 12 m deep; maximum draft: 7.0 mCapacity: 9,000 t (including portable type)Lifting capacity: 250 t / 100 t (with the rolling alleviation function)Helideck, 4-point mooring device (for work in shallow sea area), 2xROV system, storage battery systemPrimary specificationsDimensions of vesselCable tankMain/sub craneOther equipmentInvestment valueApprox. 30 billion yenImplementation of workImplementation of workFoundation and appurtenant work (fixed-bottom type)Subsea cable-laying workCommercializationHave cable-laying vessel constructedPurchase large work vesselFY2025FY2026FY2027 and afterCommercializationO&M, etc.Mooring work (floating type)Offshore Wind Power Construction Business Development Roadmap
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