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Innovation of the Year the Year: Aker Solutions

Innovation of the Year
Aker Solutions 

Project Submission: Integration of Oscilay™ Cables with Subsea Substations 

Aker SolutionsAker Solutions is currently running a project to integrate its dynamic inter-array cables with subsea substations to deliver a sustainable and low-cost solution for the offshore wind market.  

Using its Oscilay™ cable manufacturing technique with subsea substations, the CAPEX can be significantly reduced compared to traditional installations. Oscilay™ cables have greater machine simplicity and require fewer splices and welds, as well as offer a simpler and more cost-effective offshore installation. Combined with subsea substations, this has the potential to significantly increase the efficiency of energy transmission back to shore

 One key enabling element is a 72.5kV wet mate connection system combined with our 66kV dynamic power cable. One subsea substation can have a capacity up to 300MVA and eliminate the need for a dynamic export cable. Several such stations can be used in combination for higher capacities. The key to the exceptional capabilities is simplicity and no utilities as it is naturally cooled in water. Another key part is the rigorous qualification and test regimes from the subsea industry safeguarding well tested and fit for purpose designs.  

 Ongoing developments are currently being undertaken in the United Kingdom and Norway with partners Benestad and ABB, and supported by the department for Business, Energy and Industrial Strategy (BEIS), Innovation Norway, and Norwegian Research Council. The ongoing development and qualification projects are due to be completed in 2024.