ULSTEIN DESIGNED SUBSEA ROCK INSTALLATION VESSEL FOR GLDD WILL BE AMERICA’S FIRST PUBLISHED 19. NOVEMBER 2021 SIGN UP TO NEWSLETTER GLDD orders Jones Act compliant rock installation vessel to serve U.S. offshore wind. The vessel, an ULSTEIN S211 design, has been developed by Rotterdam based Ulstein Design & Solutions B.V. and will be constructed by Philly Shipyard. The contract includes the option for a second vessel. Les på norsk Great Lakes Dredge & Dock Co. LLC (GLDD) is the U.S. leading dredging company. The first vessel will be constructed by Philly Shipyard and is expected to enter operations by Q4 2024 to serve the U.S. offshore wind market. “World-renowned engineering firm Ulstein Design and Solutions B.V. was commissioned by us to design the vessel using state-of-the-art technology, equipment and automation”, states Eleni Beyko, Great Lakes Dredge & Dock’s Senior Vice President Offshore Wind. “The design was reviewed and approved by the American Bureau of Shipping (“ABS”) and will be built with best-in-class safety and low emissions standards (LEV, Sustain2).” To reach the low emission and sustainability goals, the vessel design includes EPA Tier 4 engines, plug-in shore power connection for loading in ports and battery packs for peak-shaving. The vessel is also able to run on biofuel to reduce its CO2 footprint and is equipped with active emission control technology to minimise NOx emissions. In the concept phase, the Ulstein Blended Design method was used to enhance cargo efficiency, boost the GLDD business case, and reduce overall fuel consumption. “It is a privilege to work together with the GLDD newbuilding team. Their vast experience in U.S. shipbuilding, combined with our expertise of rock installation vessel design, was essential in creating this unique vessel for U.S. offshore wind sector”, says Ko Stroo, lead designer in Ulstein Design & Solutions B.V. Main dimensions of the vessel are: Loa 140.5 m / 461 ft Lpp 134.9 m / 442 ft Beam (moulded) 34.1 m / 112 ft Depth (main deck) 10.7 m / 35 ft Draught (operational) 7.0 m / 23 ft Service speed 12 kn Installed power 2 x 3,150 kW - 2 x 2,250 kW Propulsion thrusters 2 x 2,500 kW Retractable thruster 2 x 1,200 kW Tunnel thrusters (fwd) 2 x 900 kW Positioning system DP 2 Class ABS Rock hold capacity 20,000 t Complement 45 P Ulstein Design & Solutions B.V. specializes in the design and development of game-changing ships for the offshore energy market. Sometimes brilliantly simple, sometimes necessary complex. We push for sustainable solutions. Besides newbuild designs, Ulstein Design & Solutions B.V. is actively involved in consultancy and feasibility studies for upgrading vessels. RELATED GLDD AWARDS INTEGRATION ENGINEERING CONTRACT TO ULSTEIN ROCK INSTALLATION: AWARDED SHIP DESIGN CONTRACT FOR U.S. OFFSHORE WIND INDUSTRY JONES ACT COMPLIANT IN U.S. OFFSHORE WIND Please contact us for more information Ulstein Design & Solutions B.V. Cornerstone Building (6th floor) Rotterdam Airportplein 32 3045 AP Rotterdam The Netherlands Tel: +31 10 475 00 11 udsbv.info@ulstein.com Edwin van Leeuwen Managing director Tel: +31 653144777 edwin.vanleeuwen@ulstein.com Who we are Ulstein Group Companies and contacts Innovations Careers News Blog Webinars Newsletter signup 乌斯坦(中国) What we do Ship design Shipbuilding Design & equipment packages Solutions References Ulstein web terms of use Contact us Ulstein Group ASA Osnesvegen 110, 6065 Ulsteinvik NORWAY gr@ulstein.com +47 7000 8000 BACK TO TOP