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 mobile offshore drilling unit includes a plurality of electric thrusters to dynamically position the drilling unit, and a microgrid electric power generation system for providing power to the plurality of electric thrusters, the microgrid electric power generation system including at least one combustion generator electrically coupled to a main electric power bus and at least one thruster electric power system, the thruster electric power system including a thruster electric power bus, an additional electric power bus connected to the thruster electric power bus via an interface device, and a circuit breaker electrically coupling the additional electric power bus to a main electric power bus for isolating the thruster electric power bus from the main electric power bus in case of loss of power on the main electric power bus.

A mobile offshore drilling unit includes a plurality of electric thrusters to dynamically position the drilling unit, and a microgrid electric power generation system for providing power to the plurality of electric thrusters, the microgrid electric power generation system including at least one combustion generator electrically coupled to a main electric power bus and at least one thruster electric power system, the thruster electric power system including a thruster electric power bus, an additional electric power bus connected to the thruster electric power bus via an interface device, and a circuit breaker electrically coupling the additional electric power bus to a main electric power bus for isolating the thruster electric power bus from the main electric power bus in case of loss of power on the main electric power bus.

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.

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.

A solar electric pump-out boat for removing human waste. The pump-out boat may include a boat hull, wherein the boat hull may include a bow, a stern, and a self-draining sole disposed therein. The pump-out boat may further include a holding tank disposed within the hull underneath the self-draining sole for collecting waste. The pump-out boat may further include a console disposed approximately center of, and on a top surface of the self-draining sole. The pump-out boat may further include a solar panel for absorbing sunlight to convert into electrical power. The pump-out boat may further include a pump disposed within the console. The pump-out boat may further include a battery connected to a motor, the pump, and the solar panel, such that the solar panel charges the battery to provide the electrical power to operate the pump and the motor.

A passive generator system for a marine vessel using an intake manifold having an opening at the bottom of the hull of the vessel. The intake manifold tapers to a point at the rear of the opening and extends upward to an intake funnel that reduces down to a conduit. The conduit has a first portion angled relative to the opening which joins to a second portion at an elbow. The second portion of the conduit extends horizontally to a rear of the vessel, to a conduit exit where water can exit the conduit. An impeller is location in the first portion of the conduit that drives a generator through a shaft between the impeller and the generator, the shaft passing through a top of the first portion of the conduit.

A Hybrid Vessel Propulsion and Generation System diesel jet drive outboard and inboard motors, with an electrical generator attached to a prop shaft of the motors to generate electricity to power batteries. On large boats or ships with a gear change, the generator is mounted on the back of the gearbox and is attached to the prop shaft, with the generator being driven by rotation of the prop shaft and the drive of the gearbox. The system also incorporates electrically powered water thrusters and mechanical pressurised water turbines used for charging the batteries. The system also incorporates electric motors attached to propellers powered by electric batteries. Solar panels may be arranged in the port hole windows incorporating a housing, latch and lever arms to position them towards the sun.

A Hybrid Vessel Propulsion and Generation System diesel jet drive outboard and inboard motors, with an electrical generator attached to a prop shaft of the motors to generate electricity to power batteries. On large boats or ships with a gear change, the generator is mounted on the back of the gearbox and is attached to the prop shaft, with the generator being driven by rotation of the prop shaft and the drive of the gearbox. The system also incorporates electrically powered water thrusters and mechanical pressurised water turbines used for charging the batteries. The system also incorporates electric motors attached to propellers powered by electric batteries. Solar panels may be arranged in the port hole windows incorporating a housing, latch and lever arms to position them towards the sun.

A solar powered electric ship system comprises an electric ship, multiple inflatable barges, and multiple inflatable non-imaging non-tracking solar concentrator based concentrating photovoltaic systems. The entire system is configured with the multiple inflatable non-imaging non-tracking solar concentrator based concentrating photovoltaic systems mounted on the inflatable barges, and with the inflatable barges mechanically and electrically connected to the electric ship. When in operation, the electric ship dragged the barges to navigate together with it, and have the inflatable non-imaging non-tracking solar concentrator based photovoltaic system to power it. The configuration dramatically reduce the battery bank size of the electric ship and make the portable floating concentrating photovoltaic system ultra-high efficiency, extremely low cost, and super light.