PHILADELPHIA – The Jones Act-compliant subsea rock installation vessel that Philly Shipyard Inc. is building for Great Lakes Dredge & Dock Co., LLC will be built to ABS Class.
The vessel will transport and strategically deposit loads of up to 20,000 metric tons of rock on the seabed, laying scour protection for offshore wind farm foundations, cables, and other structures.
It will also be awarded the ABS SUSTAIN-2 Notation, recognizing adherence to certain UN Sustainable Development Goals related to vessel design, outfitting and layout.
ABS said it has been supporting the project since 2020, most recently with review of the 140.5-m (461-ft) basic design.
The vessel will include EPA Tier 4 engines and plug-in capability to obtain power from shore while loading. It will be able to run on biofuel, which reduces the ship’s CO2 footprint and is equipped with active emissions control technology to reduce NOx emissions to a minimum. The installed battery pack will shave peak loads to reduce fuel consumption and emissions.
The vessel is expected to be delivered in 4Q 2024.
Lasse Petterson, president and CEO of Great Lakes Dredge & Dock, said: “Offshore wind will play a crucial role in helping the US meet its decarbonization and clean energy goals. The unique, technologically advanced vessel we are constructing is an essential step towards building the marine infrastructure required for this new industry, which holds so much promise for our nation economically and environmentally.”
The subsea rock installation vessel is the latest asset designed specifically for US operations to be built to ABS Class. Charybdis, the first Jones Act-compliant wind turbine installation vessel and the first US-flagged Jones Act offshore wind farm service operation vessel ever ordered will be built to ABS Class. These vessels will join the first ABS-classed crew transfer vessel in the US, Windserve Odyssey.