Retrofit Strategy using Aluminium Anodes for the Internal sections of Windturbine Monopiles

摘要

This paper discusses the corrosion mitigation strategy for protecting the submerged sections of a monopile wind turbine structure off the east coast of England in UK waters. The choice of the CP system was based on a remotely monitored trial, to minimise the retrofit installation works and thereby keeping costs and offshore work activity down, minimising the safety risk, yet provide an effective working system. The details and results of the initial trial are presented, as is the planning and preparation details to install aluminium anode strings inside of the supposed sealed internal sections of the wind turbine monopiles.