A device for establishing an electrical connection between a multiphase distribution grid of a ship and a multiphase supply grid on the land, having an electrical plug unit arranged on the ship and an electrical coupling unit arranged on the land for making electrical contact with the electrical plug unit of the ship, wherein the electrical coupling unit arranged on the land is designed to be able to be moved along at least a partial region of the ship. To create a device for establishing a land power connection of a ship that allows rapid and flexible establishment of electrical contact, it is proposed according to the invention for the electrical coupling unit on the land to be designed to be able to be moved in a manner guided by rails, wherein the electrical coupling unit on the land has a reception and guidance device for the wired plug of the electrical plug unit of the ship.

A navigation method for a ship which includes: a plurality of main generators that feed power to navigation equipment used in normal navigation and appliances for the living quarters provided within a ship body; and an emergency generator that feeds power to emergency equipment in case of fire or flood. The navigation method includes: an emergency power feeding step for feeding power to the emergency equipment using the emergency generator when at least one of the plurality of main generators is disabled due to fire or flood; and a return-to-port power feeding step for feeding power to return-to-port equipment, required for navigation for returning to port, using the main generators and the emergency generator after the fire or flood has subsided.

A navigation method for a ship which includes: a plurality of main generators that feed power to navigation equipment used in normal navigation and appliances for the living quarters provided within a ship body; and an emergency generator that feeds power to emergency equipment in case of fire or flood. The navigation method includes: an emergency power feeding step for feeding power to the emergency equipment using the emergency generator when at least one of the plurality of main generators is disabled due to fire or flood; and a return-to-port power feeding step for feeding power to return-to-port equipment, required for navigation for returning to port, using the main generators and the emergency generator after the fire or flood has subsided.

Disclosed are an energy self-contained oceanic drone for AI-based marine information survey and surveillance and a method using the same. A method of monitoring, by a marine vessel system, an ocean condition may include taking in a given amount of seawater or fresh water, performing advanced water treatment on the taken-in seawater or fresh water, performing water electrolysis treatment on the water obtained through the advanced water treatment, generating electric energy using a fuel cell based on hydrogen obtained from the water through the water electrolysis treatment, and supplying the generated electric energy as electric power for the marine vessel system.

A thruster electric power system includes one or more energy storage units configured to power an electric thruster of a mobile offshore drilling unit in response to one or more combustion generators of the mobile offshore drilling unit being unavailable to provide electric power to the electric thruster. A mobile offshore drilling unit capable of dynamic positioning includes one or more thruster enclosures, each thruster enclosure including: (a) one or more thruster converters configured to power respective electric thrusters, and (b) one or more energy storage units configured to power the respective electric thrusters of the one or more thruster converters in response to one or more combustion generators of the mobile offshore drilling unit being unavailable to provide electric power to the electric thrusters.

A thruster electric power system includes one or more energy storage units configured to power an electric thruster of a mobile offshore drilling unit in response to one or more combustion generators of the mobile offshore drilling unit being unavailable to provide electric power to the electric thruster. A mobile offshore drilling unit capable of dynamic positioning includes one or more thruster enclosures, each thruster enclosure including: (a) one or more thruster converters configured to power respective electric thrusters, and (b) one or more energy storage units configured to power the respective electric thrusters of the one or more thruster converters in response to one or more combustion generators of the mobile offshore drilling unit being unavailable to provide electric power to the electric thrusters.

The present disclosure relates to a stand-alone buoy with a seawater battery, which includes a main body formed to have a predetermined buoyancy so as to float on seawater and provided with a seawater space therein and an inlet formed to introduce the seawater into the seawater space, a position notification part installed on the main body and configured to notify a user of a position of the main body, a solar cell part installed on the main body and configured to generate electricity using sunlight, and a seawater battery unit installed in the seawater space to be submerged in the seawater introduced into the seawater space and configured to react with the seawater to store the electricity provided from the solar cell part and to provide the stored electricity to the position notification part so as to operate the position notification part.

A solar-powered boat comprising a hull which comprises a bottom panel and side panels extending upwardly from opposed sides of the bottom panel for defining a hull interior region. At least one of the side panels comprises an upper section angled inwardly with respect to an axis orthogonal to the bottom panel; and at least one panel opening provided in the upper section. The solar-powered boat is further comprised of at least one solar panel configured to supply electricity to the boat, the solar panel being mounted within the panel opening using a solar panel mounting kit.

A solar-powered boat comprising a hull which comprises a bottom panel and side panels extending upwardly from opposed sides of the bottom panel for defining a hull interior region. At least one of the side panels comprises an upper section angled inwardly with respect to an axis orthogonal to the bottom panel; and at least one panel opening provided in the upper section. The solar-powered boat is further comprised of at least one solar panel configured to supply electricity to the boat, the solar panel being mounted within the panel opening using a solar panel mounting kit.

A system and method of using accumulator(s) to generate electrical power in a marine environment. The system includes a first power source coupled to an electric machine coupled to a hydraulic pump coupled to an accumulator. The first power source is a power supply operable to convert AC to DC, and the accumulator is a high-capacity hydraulic energy storage device. The electric machine configured to operate as an electric motor driving the hydraulic pump in a first direction charges the accumulator. The charged accumulator configured to drive the hydraulic pump in a second direction driving the electric machine configured to operate as an electric generator to generate a second power source. The hydraulic/electric power system also includes a first controller configured to operate a first electrical load powered by the first power source and a second controller configured to operate a second electrical load powered by the second power source.