The project concerns the construction of two additional underwater pipelines to serve the two islands, on the one hand, to increase the supply capacity and, on the other hand, to ensure a backup in the event of damage, due to the particular difficulties and delays of the repairs of the underwater pipelines, which require a specialised workshop with divers.More specifically, the construction of additional underwater pipelines to increase the supply and to ensure that they are in place at the same time will be available.