Offshore engineering consultancy SLPE has secured a detailed design contract for wind turbine generator foundations for Red Rock Power Limited and ESB’s Inch Cape offshore wind farm.
Inch Cape applied earlier this year to remove the capacity cap from its consent, allowing it to select the most powerful turbines on the market. The wind farm will be located 15-22 km off the Angus coastline in Scotland, with water depths ranging from 43 to 55 meters.
SLPE delivered the WTG foundation concept design for Inch Cape in March this year and, following a period of further design optimization, has now been awarded the detailed design which is planned to start in early 2022.
"We are delighted to be continuing our work for Inch Cape,” said Joseph Hilton, Managing Director of SLPE. “Following the concept design phase, we undertook a refinement phase to further optimize our designs for a number of variables and uncertainties. These studies will contribute to the detailed design of monopiles that will support some of the largest offshore wind turbines in the market today. Inch Cape is also currently the deepest offshore wind farm in which monopile foundations are planned to be deployed."
Credit: Red Rock
In the meantime, SLPE is supporting Inch Cape with further concept refinement work and site investigation support, in order to inform key project decisions and develop design inputs in preparation for detailed design.
Largest monopiles
"With water depths of up to 55m, the monopiles for Inch Cape will be among the largest in the world,” said Nick Terry, Head of WTG Substructures. “Being able to demonstrate the feasibility of monopiles in these water depths has delivered significant cost savings to the project, when compared against jacket foundations. This has been made possible by our in-house iterative design and optimization software, which enables each location-specific monopile design to be individually optimized for both structural weight and cost-effective fabrication.
"Our monopile designs also incorporate advanced PISA-type geotechnical design, using full 3D finite element analysis and advanced soil constitutive modeling to simulate the soil-structure behavior. This results in higher accuracy and considerable weight savings compared to conventional pile design methods. This advanced approach is delivered in partnership with Geowynd, who complement SLPE with their deep expertise in marine geotechnics.”
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