A system for marine electricity generation and solid carbon production includes an offshore marine platform on which is mounted a regassification system for regassification of liquid methane; a methane splitting system producing solid carbon and gaseous hydrogen; and a power generation system producing electricity and exhaust heat. A first marine vessel is moored adjacent the marine platform for delivery of the liquid methane, and a second marine vessel is moored adjacent the marine platform for removal of the solid carbon produced by the methane splitting system. The hydrogen produced from the methane splitting system is used in a fuel stream for the power generation system. The exhaust heat from the power generation system is utilized in the methane splitting process. Also mounted on the marine platform is a solid carbon handling system disposed to manage the large amount of solid carbon resulting from the methane splitting process.

A system for marine electricity generation and solid carbon production includes an offshore marine platform on which is mounted a regassification system for regassification of liquid methane; a methane splitting system producing solid carbon and gaseous hydrogen; and a power generation system producing electricity and exhaust heat. A first marine vessel is moored adjacent the marine platform for delivery of the liquid methane, and a second marine vessel is moored adjacent the marine platform for removal of the solid carbon produced by the methane splitting system. The hydrogen produced from the methane splitting system is used in a fuel stream for the power generation system. The exhaust heat from the power generation system is utilized in the methane splitting process. Also mounted on the marine platform is a solid carbon handling system disposed to manage the large amount of solid carbon resulting from the methane splitting process.

A buoyant vessel having a hull and a drive system mounted to the hull, the system having a rectifier, a generator, an AC bus in communication with shore power or a charging system and the rectifier, a DC bus in communication with the rectifier, at least one energy storage system, an inverter, a prime mover, a load regenerating device, and a control and monitor system which has predefined specifications for at least one of: storage units of at least one energy storage system; stored therein and wherein the control and monitor system is adapted to: automatically control the DC/DC converters, relieve a current draw from one or more storage units, provide charging current, and automatically draw power and redirect energy.

A buoyant vessel having a hull and a drive system mounted to the hull, the system having a rectifier, a generator, an AC bus in communication with shore power or a charging system and the rectifier, a DC bus in communication with the rectifier, at least one energy storage system, an inverter, a prime mover, a load regenerating device, and a control and monitor system which has predefined specifications for at least one of: storage units of at least one energy storage system; stored therein and wherein the control and monitor system is adapted to: automatically control the DC/DC converters, relieve a current draw from one or more storage units, provide charging current, and automatically draw power and redirect energy.

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.

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.

An energy recovery system 100 for a marine vessel 200 is herein disclosed comprising at least one water turbine 101, 102 with vertical axis 105, 106 respectively arranged aft and off center, that is either port side or starboard side, with respect to a rotational axis 211 of a respective propeller but at a distance from the propeller and from the rotational axis of the propeller such as to be at least partially in a wake range 21 of the propeller in order to recover at least part of the dissipated rotational power. A vessel 200 comprising at least one energy recovery system 100 and a method for recovering at least part of the energy dissipated by the marine vessel are herein also disclosed.

An energy recovery system 100 for a marine vessel 200 is herein disclosed comprising at least one water turbine 101, 102 with vertical axis 105, 106 respectively arranged aft and off center, that is either port side or starboard side, with respect to a rotational axis 211 of a respective propeller but at a distance from the propeller and from the rotational axis of the propeller such as to be at least partially in a wake range 21 of the propeller in order to recover at least part of the dissipated rotational power. A vessel 200 comprising at least one energy recovery system 100 and a method for recovering at least part of the energy dissipated by the marine vessel are herein also disclosed.

A power system having a plurality of gensets compares the instantaneous power consumption with a plurality of power consumption zone boundaries and classifies the power consumption into a selected zone. Each zone includes a corresponding base power value and a corresponding dynamic range value, which are apportioned among the plurality of gensets.

A subsea system for exploiting an oceanic current shear includes a first vehicle positionable in a first oceanic current and tethered to a second vehicle positionable in a second oceanic current. The first and second oceanic currents have a velocity differential. A drag or lift device integral or attached to the first vehicle exerts a force through the tether on the second vehicle and its associated drag or lift device, thus providing a net propulsive force. Hydrofoils or control devices attached to the vehicles provide hydrodynamic lift, drag, and/or depth control that allow the direction of the force to be controlled for propulsion in a desired direction. The relative currents and/or change in separation of the vehicles can be used for energy harvesting. Turbines and generators coupled to the vehicles harvest energy for long term subsea endurance. A sensor aperture comprises a plurality of sensors coupled to components of the subsea system.