| dc.description.abstract | BACKGROUND Norway is a modern and technologically advanced energy nation with comprehensive experience from the offshore petroleum industry, close proximity to marine environments and deep-water fjords and waterways. The national authorities and actors from various industries acknowledge the importance of a green transition. Recent floating wind projects with positive results have shown great opportunities, but the floating wind industry is still in a beginning phase, lacking relevant experience and guidelines. LCOE for floating wind is often higher compared to land-based and fixed turbines. Optimizing marine activities can reduce costs.
PURPOSE To identify marine operational challenges when installing floating offshore wind turbines using spar and semi-submersible foundations.
METHODOLOGY A qualitative method was applied for this thesis. As research design, a systematic literature review was conducted. This was used to collect and analyze data from existing documents and literature to extract important correlations and relevant information regarding theconditions in the installation phase for the floating wind industry.
CHALLENGES Challenges are related to port capabilities, assembling components, towing and lifting components, offshore installation processes, weather, experience, costs, vessels and component behaviors when floating.
CONCLUSION Challenges related to port suitability, towing, and lifting operations related to mounting turbines on floating foundations were identified as key topics when installing floating offshore wind turbines using spar and semi-submersible foundations. Metocean uncertainty, risk of unexpected incidents and lack of experience were factors related to the challenges.Keywords: Floating offshore wind, marine operations, spar, semi-submersible, WindWorks elsa, Hywind, WindFloat | en_US |
