ADIMDE NEWS 29 BALENCIAGA SHIPYARDS TO BUILD 2 “ZERO- EMISSIONS” VESSELS The Basque Balenciaga and the Asturian Gondán shi- pyards have joined forces to build four new support vessels for the construction and maintenance of off-sho- re wind parks. Their main characteristic is hydrogen propulsion, which will make them the first “Zero Emis- sions” vessels. The Norwegian Østensjø Re- deri A/S has commissioned the construction of four CSO- Vs (Commissioning Service Operation Vessels), 88.3 me- tres in length and with a 19.7 beam, capable of accommo- dating 120 people (97 tech- nicians and AS23 crew). De- signed to be the greenest and most efficient vessels of their type worldwide, they are part of an ambitious shipbuilding project, announced by the shipowner last year, to enter the Offshore Wind market. TECHNOLOGICALLY ADVANCED The four vessels will have a series of cutting-edge develo- pments and all their onboard systems have been designed to optimise the vessels’ ener- gy efficiency, reducing their carbon footprint as far as pos- sible and enabling stable and safe operations, even in ad- verse weather conditions. They will be the first vessels to incorporate technology to enable “Zero Emissions” ope- rations in the future, thanks to the use of liquid hydrogen (LOHC). They will be trail- blazers thanks to a configu- ration of their diesel-electric propulsion, which reduces fuel consumption (Blue Dri- ve + C Star). They will also be the first to be fitted with Voith permanent-magnet pro- pellers. This technology, con- sisting of the transformation of conventional cycloidal pro- pulsion into 100% electrical propulsion, will reduce wei- ght, consumption, and in turn minimise acoustic emissions. Another noticeable charac- teristic is the installation of a 5 ton/24m crane motion compensated system and a compensated walkway fitted with a lift to transfer techni- cians to the wind turbines. The architecture is fully elec- tric and can recover the ener- gy which, after being stored in the battery packs fitted on the vessel, can meet the peak-demand power needs and with an integrated re- mote control system. Finally, they will have a sys- tem to recover all the heat generated onboard. This will allow better use of the energy and the ensuing cut in consumption and admis- sions. They will also have static and dynamic stabilisa- tion systems fitted.