Abstract: The present invention relates to a method for installing a pumped-storage hydroelectric power station, referred to as “marine PSH station”, which includes a dam located at a higher altitude than sea level, a hydroelectric plant configured to operate as a pump-motor assembly for pumping seawater towards said dam, or as a turbine-alternator assembly for producing electricity by releasing water from the dam into the sea via at least one pipe connecting said dam to said hydroelectric plant; characterized in that: the hydroelectric plant used is presented in the form of at least one coffer dam at least the bottom portion of which is sealed; said coffer dam is transported until the base of said dam (RE); said coffer dam is immobilized in the sea; and said coffer dam is connected to said pipe.

Abstract: The present disclosure relates to a passenger ship, such as a passenger liner, which includes a main structure bounded by a hull and its upper deck, above which arises at least one superstructure, wherein it has at least one arch which stands generally fore and aft, and which extends at least partly over the main structure, its opposite ends being firmly joined to this main structure, so that the arch carries at least part of the loads connected with its deflection.

Abstract: The disclosure relates to a module for producing electric power for a main ship, capable of supplying the power required to propel the main ship, the module being produced in the form of a secondary ship separate from the main ship and including a power plant, the secondary ship being provided with an electrical connector for establishing an electrical connection between the power plant and the main ship and a lock for interlocking with the main ship in order to secure the former from moving from the main ship, the electrical connector being suitable for supplying electric power to the propulsion motor of the main ship.

Abstract: The disclosure concerns a self-propelled ship comprising a shipboard electric network, a main electrical supply bus, propulsion means, a motor for driving the propulsion means, and means for supplying electricity to them. According to the disclosure, the supply means comprise a set of electric capacitors having a capacitance sized to provide, at their nominal electrical charge, at least temporarily, both of the nominal supply of the shipboard network and of the electric motor through the bus, and electrical connection means arranged on board the ship for connecting the set of electric capacitors to another electric network located at an arrival and/or departure point of the ship, for the purpose of recharging the capacitors to their nominal charge and to supply the first network during a stop at the arrival and/or departure point.

Abstract: The present disclosure relates to a passenger ship, such as a passenger liner, which includes a main structure bounded by a hull and its upper deck, above which arises at least one superstructure, wherein it has at least one arch which stands generally fore and aft, and which extends at least partly over the main structure, its opposite ends being firmly joined to this main structure, so that the arch carries at least part of the loads connected with its deflection.

Abstract: A passenger ship includes at least one superstructure having several superposed decks. At least some of the decks include contiguous passenger cabins having an outer longitudinal passageway, which extends between the latter and the hull. Each outer passageway is at least partly closed along its longitudinal side opposite to the cabins. At least one of the opposite ends of each outer passageway is open. The floor which separates outer passageways of two superposed decks is at least partly slatted. The ship includes air-conditioning for the cabins, with discharge of the treated air from the cabins towards the outside world, via said outer passageways. The passenger ship ensures ventilation of the passageways along both longitudinal and vertical directions, respectively, and with the air-conditioning.

Abstract: The disclosure relates to a module for producing electric power for a main ship, capable of supplying the power required to propel the main ship, the module being produced in the form of a secondary ship separate from the main ship and including a power plant, the secondary ship being provided with an electrical connector for establishing an electrical connection between the power plant and the main ship and a lock for interlocking with the main ship in order to secure the former from moving from the main ship, the electrical connector being suitable for supplying electric power to the propulsion motor of the main ship.

Abstract: The disclosure concerns a self-propelled ship comprising a shipboard electric network, a main electrical supply bus, propulsion means, a motor for driving the propulsion means, and means for supplying electricity to them. According to the disclosure, the supply means comprise a set of electric capacitors having a capacitance sized to provide, at their nominal electrical charge, at least temporarily, both of the nominal supply of the shipboard network and of the electric motor through the bus, and electrical connection means arranged on board the ship for connecting the set of electric capacitors to another electric network located at an arrival and/or departure point of the ship, for the purpose of recharging the capacitors to their nominal charge and to supply the first network during a stop at the arrival and/or departure point.

Abstract: The present invention relates to a passenger ship (1) which includes at least one superstructure (S) consisting of several superposed decks (P1-P6), at least one portion of which consists of passenger cabins (CE; CI), some of these cabins (CE) being contiguous, on the associated deck, with an outer longitudinal passageway (CO), which extends between the latter and the hull.