DNV Kicks Off JIP on Standards for Offshore Wind Concrete Floaters | Offshore Wind - Offshore WIND
DNV Kicks Off JIP on Standards for Offshore Wind Concrete Floaters | Offshore Wind
DNV Kicks Off JIP on Standards for Offshore Wind Concrete Floaters
DNV has secured partners to launch a new project to enhance technology development and prepare for scale/industralisation of concrete substructures for floating offshore wind.
With the launch of a new joint industry project (JIP), called Concrete FLOW, DNV aims to optimise requirements for concrete floaters, specifically tailored for floating offshore wind farms.
The project encompasses concrete structures, geotechnics, and floating technologies.
At a recent kick-off meeting, 14 partners committed to redefining global standards for the production of concrete floaters in the offshore wind industry. The collaborative results are earmarked for incorporation into future DNV service documents.
“This initiative symbolizes a collaborative effort to set new standards and challenge existing ones, laying the groundwork for the future of floating wind. We have engaged with 30 companies to discuss this initiative…,” said Kim Sandgaard-Mørk, Executive Vice President for Renewables Certification at DNV.
DNV said that it sees concrete floaters as a cost-effective and environmentally friendly alternative to steel floaters, particularly for larger wind turbine sizes.
The organisation added that refinements to design provisions should enhance material efficiency while maintaining the historically robust performance of offshore concrete structures.
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JIP’s primary objective is to enhance standard requirements, customizing them for industrial production to enable serial production, significantly reducing costs and streamlining the manufacturing process, said DNV.
“While the DNV-ST-0119 standard includes design provisions for concrete floaters, some requirements draw from oil and gas experience and others from bottom fixed wind farms; they need refinement and optimization to be used specifically for floating offshore wind developments”, said Stefan Baars, Renewables Certification Head of Section for Concrete Structures & Geotechnics at DNV.
“The project will select hot topics to investigate as work packages, so as to update and refine the concrete design provisions in DNV-ST-0119.”
The team expects to conduct activities over a period of one and a half to two years.
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Related Knowledge Center: Offshore wind energy
Over the next decade, U.S. offshore wind power is expected to grow from a single 30-megawatt wind farm off Rhode Island to more than 2,000 MW of capacity along the Atlantic Seaboard. There are contracts for wind power off the coasts of Massachusetts, Connecticut, New York, Maryland, New Jersey, Rhode Island, and Virginia.
The National Renewable Energy Laboratory has estimated the United States has over 4,000 gigawatts (GW) of offshore wind potential, enough to power the country four times over.
The growth in part being spurred by state solicitations, including in New York, where then-Gov. Andrew Cuomo (D) set a commitment of 9,000 MW of offshore wind by 2035, and in Connecticut, where in June 2021, Gov. Ned Lamont (D) signed legislation authorizing the construction of 2,000 MW of offshore wind by 2030.
The offshore development is also being driven by an investment tax credit set to end in December 2019 and is equal to 12 percent of expenditures. U.S. Sens. Susan Collins (R-Maine) and Tom Carper (D-Del.) have introduced a bill to extend the tax credit for up to eight years.
The Interior Department has held eight competitive lease sales that resulted in 15 offshore wind leases over 1.7 million acres that has the potential for 21 GW of capacity. In February 2022, the Bureau of Ocean Energy Management completed a bidding process that realized $4.37 billion for 488,000 acres across six lease areas in federal waters off New York and New Jersey.
Projects have also been proposed off the Southeast coast, off California and Hawaii, and for the Great Lakes.