CP Design For Offshore Wind Turbine Foundations

An interesting article was published in the September 2014 issue of the NACE Materials Performance COWI imagemagazine. The article presents design considerations and some of the challenges a corrosion engineer encounters while designing a cathodic protection (CP) system for offshore wind turbine foundations. The authors were Sameer Ayyar, Jacob Jansson and Ruth Sorenson from COWI A/S Copenhagen, Denmark.

The study was supported by computer modelling where a number of options were evaluated. In the figure shown here the model results for an anode cage attached to a monopile structure at a level of -5 to -10m can be seen. The immersed surface of the monopile is bare. Corrosion protection is extended to all the external immersed surfaces and 5m below the mudline.

Project: London Array Offshore Wind Farm. Image source. COWI.

The article was published in the September issue of Materials Performance. For further information, please