A mooring buoy for a vessel comprises a floating body arranged to project out of the water. At least one buoy anchoring line is connected between the floating body and sea floor. At least one vessel mooring line is connectable between the mooring buoy and the vessel. At least one moveable electric cable is connected to a power supply and the moveable electric cable has a free end connectable to a switchboard of the vessel when the vessel is tethered to the at least one vessel mooring line. The free end of the at least one moveable electric cable is moveable between a retracted position and a connected position and the tension of the at least one vessel mooring line is greater than the tension in the at least one moveable electric cable when the free end of the at least one moveable electric cable is in the connected position.

A mobile power station for the purpose of recharging electric vehicles is provided. The charging station includes separate, but different, types of electrical generation capabilities. For example, the charging station may include two or more of: wind power, solar power and power generated from suspension mounted oscillators, which charge its battery pack over land. If desired, the mobile power station can be amphibious, as well, with the ability to navigate small and large bodies of water.

An energy transmission device for a watercraft includes a tower arranged on land, a telescoping boom connected to the tower for pivoting about a horizontal axis and about a vertical axis, said boom including a free end, and a first plug connected to the free end of the boom and designed to electrically contact for transmission of electrical energy a second upwardly oriented plug on the watercraft via a vertical plugging motion from above by pivoting the boom relative to the tower.

Methods, systems, and computer-readable media that implement autonomous seagoing power replenishment watercraft. An example system includes a plurality of marine vessels; a plurality of watercraft, each watercraft of the plurality of watercraft including a rechargeable electrical power supply and being configured to operate in: a first mode in which the watercraft awaits an assignment to provide electrical energy to a marine vessel of the plurality of marine vessels; a second mode in which the watercraft performs operations including keeping station with an assigned marine vessel and providing electrical energy to the assigned marine vessel from the power supply; and a third mode in which the watercraft recharges the power supply from a charging station. The system includes a controller configured to perform operations comprising: transmitting, to a first watercraft, an instruction indicating an assignment of the first watercraft to provide electrical energy to a first marine vessel.

Methods, systems, and computer-readable media that implement autonomous seagoing power replenishment watercraft. An example system includes a plurality of marine vessels; a plurality of watercraft, each watercraft of the plurality of watercraft including a rechargeable electrical power supply and being configured to operate in: a first mode in which the watercraft awaits an assignment to provide electrical energy to a marine vessel of the plurality of marine vessels; a second mode in which the watercraft performs operations including keeping station with an assigned marine vessel and providing electrical energy to the assigned marine vessel from the power supply; and a third mode in which the watercraft recharges the power supply from a charging station. The system includes a controller configured to perform operations comprising: transmitting, to a first watercraft, an instruction indicating an assignment of the first watercraft to provide electrical energy to a first marine vessel.

A device for inductively transmitting electrical energy between a power supply unit arranged on the shore of a body of water or in the body of water and a watercraft includes a primary coil associated with the power supply unit, and a secondary coil which is connectable to the primary coil for inductively transmitting electrical energy, and which is arrangeable on the watercraft. A height-adjustment device connected to the primary coil is provided in order to hold the primary coil at a consistent vertical distance from a water surface in a vertical direction running in the direction of the buoyancy. A corresponding charging system and method includes: aligning the coils relative to one another; previously or simultaneously adjusting a vertical distance between the primary coil and water surface by with a height-adjustment device; inductively transmitting electrical energy between the coils.

A power system for supplying electric power from shore-side to a vessel is presented. The power system includes one or more shore-side converters (101-112) for receiving electric power from a shore-side alternating voltage network (137) and for producing one or more direct voltages. Each shore-side converter can be a controllable converter for controlling the produced direct voltage to be suitable for the vessel in accordance with a control signal received from the vessel, or the vessel may include a direct voltage converter for converting the direct voltage received from the shore-side to be suitable for the vessel. The vessel can be an electric vessel which includes a chargeable battery (132) for supplying electric power to the propulsion system (135) of the vessel.

The invention relates to a boat with an electric drive that comprises electric components, especially an electric motor and an electric storage unit. The components are interconnected via an electric grid. At least one of the components is connected to the grid by means of a first connection means, the first connection means comprising first connection means main contacts for connecting the at least one component to the grid, and a second connection means being provided for connecting the electric storage unit to or disconnecting it from the grid. According to the invention, the first connection means comprises at least one pair of auxiliary contacts for connecting the at least one component to a monitoring line and said monitoring line is operatively connected to the second connection means.

A marine vessel may include a propulsion system and a rechargeable energy storage system inclusive of at least one rechargeable energy source configured to supply power to the propulsion system. The marine vessel may further include a vessel-side inductive charge component in electrical communication with the rechargeable energy storage system, and be configured to inductively couple with a platform-side inductive charge component positioned at a marine-based platform. The platform-side inductive charge component may be electrically coupled to a power generator that generates electrical power. A moveable structure (e.g., gangplank or crane) may be coupled to the marine vessel on which the vessel-side inductive charge component is positioned to enable the moveable structure to be moveably positioned to wirelessly (e.g., inductively) couple the vessel-side inductive charge component with the platform-side charge component that is positioned at the marine-based platform, thereby causing the rechargeable energy storage device to be recharged.

The invention relates to a device (1) for supplying a consumer, the position of which initially cannot be exactly determined but later can be substantially stationarily fixed, with energy from a stationary supplier. The device includes a movable carriage or slide (2) connected to an arm (3). The arm (3) is movable between a first position (7) and a second position (8) and the arm (3) includes at least one plug part (4) for connection to an energy supply line (5) of the consumer. The plug part (4) is connected to the supplier by means of an energy supply line (6). A cover part (9), which is movable with the movement of the arm, is arranged on the arm (3). In the first position (7) of the arm (3), the cover part at least partially covers the plug part (4), and in the second position (8) of the arm (3), the cover part exposes the plug part (4) for connection to the energy supply line (5) of the consumer.