DNV launches advice on the design of wind farms for

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Classification society and energy consultancy DNV have published a new technical note (TN) providing principles for determining extreme wind speeds on site for wind farms caused by tropical cyclones.

The company produced the document after extensive collaboration with industry to increase transparency and reduce uncertainty in the design of wind farms in emerging offshore wind markets such as Taiwan, Japan, Korea and the United States.

“In DNV’s latest Energy Transition Outlook (ETO) report, we forecast that the share of offshore wind in total wind power generation will increase to 40% in 2050,” says Kim Sandgaard-Mørk, Executive Vice President of the certification of renewable energies at DNV. for emerging offshore wind markets with ambitious roadmaps, tropical cyclone loads are of critical importance. Hurricane Ida prove that wind farms must be designed for these extreme local environmental conditions in order to support development plans for multi-megawatt offshore wind projects. “

“To develop offshore wind power globally, the need to obtain reliable extreme wind speeds has become urgent, as sufficient long-term wind speed measurements to estimate extreme wind speeds are hardly available on land. , and even less for offshore sites ”, explains Marcus Klose, Section Head of Steel Structures at DNV.

“A lack of standardized approaches combined with little industry experience results in great uncertainty about the extreme wind speeds at the site. This has a considerable impact on the reliability and economic feasibility of wind farm projects. All industry players operating in the emerging markets of the Asia-Pacific region and the United States will benefit from the advice we give in our technical note, as it will help to minimize the risks of cost, warranty and liability in wind farm projects.

DNV said the technical note “Extreme Site Wind Speed ​​Due to Tropical Cyclones for Wind Power Plants” is the result of a global collaborative effort, with more than 20 wind industry leaders, including OEMs, Asia-Pacific project developers, designers and experts. , Europe and North America.

“After only 18 months of work, the joint industry project ACE (Alleviating Cyclone and Earthquake Challenges for Wind farms), was able to bring together enough experiences from cross-sector actors to align the design principles of wind farms for these conditions. environmental extremes, ”the company said. noted.

The document can be downloaded here. (Requires free registration)


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