The future of Ocean Energy


Offshore Maintenance I & II


LifeLine


Operability of wind park maintenance vessels


Mooring line failure alarm system


The LifeLine JIP seeks to develop a mooring line failure alarm system for FPSOs based on only GPS position measurements (without the use of any subsea equipment). The methodology, which has been developed for both turret moored and spread moored FPSOs, will be validated by in- service measurements and blind test simulations provided by participants. For this purpose 10 FPSOs have been selected which are installed in West Africa, the North Sea, Brazil, Australia and GOM. So far 15 participants have joined


including oil companies, contractors and classification societies. The three-year project started in 2018 and is still open for new participants.


Contact: Pieter Aalberts, p.aalberts@marin.nl


A wide range of vessels and strategies are available for the maintenance of offshore wind turbines. The objective of the Offshore Maintenance JIP Part I was to select the most suitable maintenance strategy and vessel for a wind park and for any time of the year. Completed at the end of 2019, Part II focused on short-term decisions about access to the turbines. To reach this objective the Deltares Meteo Dashboard system was further developed


so it can be used for day-to-day decision making. For example: ‘Can I access turbine number K2 tomorrow at 10 am using the existing fleet?’ The Meteo Dashboard will now be broadened to include high- resolution wind data in a follow-up project called the Offshore Wind Dashboard (OWD) which will start mid-2020 and is still open for new participants.


Contact: Erik-Jan de Ridder, e.j.d.ridder@marin.nl


SSPOWTTafety and Productivity of Offshore Wind Technician Transit


In a European consortium, the project improving ‘Safety and Productivity of Offshore Wind Technician Transit’ (SPOWTT) aims to widen the weather window for Crew Transfer Vessel (CTV) use and improve the productivity of technicians servicing offshore wind turbines. Ship motion measurements on board the CTVs and environmental data are combined with psychological and physiological methods to monitor the well-being of the technicians as they transit in different sea conditions. This relationship between the environment, ship motions and a technician’s well-being will result in a tool that will support the CTV operator in making the decision to launch, not


launch, or only to launch with certain control measures in place. This project is supported by TKI Wind op Zee and Topsector Energie.


Contact: Gijs Struijk, g.d.struijk@marin.nl


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