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It is a follow-up to its previous alleviating cyclone and earthquake challenges (ACE) JIP and will include a more detailed investigation into issues related to earthquakes.
The independent energy expert and assurance provider said the collaborative industry effort will focus on geotechnical aspects and aim to increase the financial robustness of future wind farms in these zones characterised by high seismic activity.
“When we look at the predictions for installed offshore wind capacity worldwide, we expect that Europe will be surpassed by Asia in the 2030s and North America in the 2040s,“ explained Kim Sandgaard-Mørk, executive vice president for renewables certification at DNV. “Especially in Asia and the US, wind turbines and offshore substations need to be designed to meet challenging conditions like earthquakes.“
Geotechnical aspects covered in the so-called ACE2 JIP include damping and liquefaction, jack-up installation vessels, details of seismic load analysis and specific Taiwanese and Japanese needs. The results will be used to update the recommended practice DNV-RP-0585 Seismic design for wind power plants, which was published in August 2021.
Marcus Klose, head of section for steel structures at DNV, said the project tackles a common industry challenge. "One of our focus areas will be on the conditions in Japan," he said. "Japan has the sixth longest coastline in the world, with ambitious government targets to install 10GW of offshore wind by 2030. Therefore typhoons, earthquakes and tsunami risks should be given special attention in the project design life cycle." He added: "The results will help to accelerate discussions and project decisions in all relevant markets.“
Companies that joined DNV in the kick-off meeting for the ACE2 JIP included CDEE, Equinor, Jan de Null, Kajima, Obayashi, Ørsted, Penta-Ocean, Shell, Shimizu, Siemens Gamesa, Taisei, Van Oord and Vestas.
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