DNV GL has published the revised standard for design of floating wind turbine structures DNV GL-ST-0119, and a new guideline for the certification of floating wind turbines, DNVGL-SE-0422. The two documents define design and certification requirements for floating offshore wind turbine concepts, prototypes and projects.
The documents also cover the complete requirements for the integrated system and can be applied for design and certification of floating wind farms, turbines or their components.
The role of offshore wind, including floating offshore wind energy, will grow significantly over the coming decades, according to DNV GL’s recent Energy Transition Outlook, forecasting that by 2050, 12% of world primary energy supply will come from wind energy of which 20% will come from offshore wind.
As new technologies, such as floating wind applications will grow in prevalence, it is vital to mitigate the risks in the implementation of the pioneering features to ensure the safe and reliable delivery of the expected performance and quality targets. To ensure the new technology is adapted safely, DNV GL has developed the technical guidelines based on the experience from research projects and verification of existing floating wind prototypes and pilot wind farms.
The technical standard for the design of floating wind turbine structures, DNV GL-ST-0119 and the new service guideline for the certification of floating wind turbines, DNVGL-SE-0422 are applicable for the entire floating structure, from the control of the single turbine and floater to mooring and anchors of the complete wind farm.
To support safe structures, the complete certification process is aligned with existing bottom-fixed wind turbine certification schemes. DNV GL has worked together with the industry over the last decade to develop a certification scheme tailored to the needs of the industry.
DNV GL sees a promising future for floating offshore wind with innovative concepts unlocking a major global potential for harvesting offshore wind resources. The technology is maturing and we have therefore revised the standard and launched the service document for floating wind turbines. We are confident that this will support further development of floating wind as a competitive technology for making the energy future safer, smarter and greener,
…commented Kim Mørk, Executive Vice President, Renewables Certification at DNV GL.
