Hywind Tampen

Equinor successfully utilized the Hywind concept for a demo (Hywind Demo) and for a demo park (Hywind Scotland) before work on Hywind Tampen began. Hywind Tampen is the first full scale floating offshore park using the concept and is at the time of finish the largest floating offshore wind farm in the world. 

The total capacity of the wind park is 88MW, enough to cover approximately 35% of power demand for the five platforms it supplies. When finished the park will reduce yearly CO2 emissions from the production on the oil & gas fields by 200 000 ton.

Multiconsult was engaged by Kværner (Aker Solutions) to assist in engineering of the concrete foundations for the Hywind Tampen project. During engineering Multiconsult personnel has worked as an integrated part of Kværner's project organisation. 

Multiconsult personnel have had the responsibility for the complete geotechnical design (including the suction anchors) and for structural analysis and loads. Further, they have assisted Kværner on concrete design and special topics such as ballasting during marine operations. Multiconsult’s in-house post-processor MultiCon was used as the main tool for concrete design. Throughout the project Multiconsult has provided Kværner with support for the software.

To moor the wind turbines, Multiconsult has come up with an innovative solution. Each anchor is joined by three wind turbines, so-called "shared suction anchor". Detailed design of 11 floating wind turbines, moored to seabed (shared suction anchors).

The design involved detailed suction anchor analyses, in-place and installation. Interface with mooring- and installation contractor. Advanced cyclic assessment for shared anchor solution.Multiconsult has designed the suction anchors for the wind turbines, both geotechnically and structurally.