deugro Danmark and its partners Siemens Gamesa and Amasus Offshore B.V. will bring two newly designed vessels—customized for transporting offshore wind turbine components—to the market. Siemens Gamesa and deugro have entered into a long-term charter agreement for these newbuild vessels, Rotra Futura and Rotra Horizon, which will be delivered in 2025.
The new concept builds upon the existing tailor-made and award-winning Rotra concept with the Rotra Mare and Rotra Vente vessels. Since 2016, this concept has proven to be very successful, reducing risk, loading time and costs by utilizing a unique RO/RO and gantry system when transporting offshore wind turbine components. The new vessels have been designed to accommodate the increasing size and weight of the next generations of offshore wind turbine components while ensuring best-in-class cargo intake and operational flexibility.
Rotra Futura and Rotra Horizon will measure 167.6 x 26 meters, with the deckhouse and accommodation placed forward to ensure optimal cargo intake without line-of-sight limitations. The vessels will be fitted with a stern RO/RO ramp, three Liebherr cranes and a unique gantry system, allowing stowage of blades in three tiers, providing excellent flexibility in cargo composition and method of loading.
Reducing the overall carbon footprint was one of the main drivers in the design phase and conceptual development of these new vessels. Energy consumption has been reduced thanks to an aerodynamically and hydro-optimized hull shape, a low-resistance special hull coating and a state-of-the-art Wärtsilä diesel engine with a 15% lower consumption and carbon footprint than today’s standards. In addition, an efficient power train with a hybrid propulsion system and an exhaust gas cleaning system meeting the highest IMO Tier 3 standards have been integrated into the new vessels, with special attention also being paid to waste heat recovery.
“Reducing the carbon footprint will be even more important in the future of the offshore wind industry,” says Hans Henrik Groen, Branch Manager and Managing Director of deugro Danmark. “Being and staying at the forefront of wind energy industry requirements build the base of our joint success.”
“In Rotra Futura and Rotra Horizon, we have the right assets to meet future challenges and perform essential operations. With our cooperation’s expansion and development, we look forward to welcoming these two new vessels. Alongside strategic partnerships with other key suppliers, this new combined fleet will ensure that we have a strong foundation from which we can execute and deliver in line with our operational expectations,” says Thomas Mortensen, Head of Offshore Project Transportation at Siemens Gamesa.
“deugro Danmark and its partner Amasus Offshore are delighted and proud to be again selected by Siemens Gamesa as the preferred supplier of a groundbreaking and trendsetting concept in the offshore wind industry,” adds Hans Henrik Groen. “This also clearly underlines the success of the trilateral collaboration in the past and the future. And I want to thank the joint project team for making this possible.”
Christian Johansen, Global Commodity Manager for Ports & Transportation in Siemens Gamesa’s offshore business unit, adds: “With our record order backlog, we will be installing many wind turbines at sea globally, with increasingly larger and more complex components. With this agreement, we have taken another important step towards securing our ability to execute projects safely, on time and at the right cost level.”
“The joint trilateral development of these new vessels marks an important milestone and contribution to the aspiration of creating a sustainable future. As Amasus’ directors, we are proud of our legacy achievements, and we are delighted and honoured to contribute to this new era together with our partners from deugro Danmark and Siemens Gamesa,” Amasus Offshore B.V. adds.
The two new vessels will be built at Jiangsu Zhenjiang Shipyard in China and are scheduled for delivery in the spring and summer of 2025.
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