A floating connector of an offshore energy device and a method for connecting the floating connector is provided. The floating connector includes a buoy having a tube, a bay, a joint box, and at least one cable for connecting to the offshore energy device. The buoy provides buoyancy to the floating connector and includes the tube and bay. The bay houses the joint box, which electrically couples the at least one cable to each other and to a switchgear of the offshore energy device.

A resident remotely operated vehicle may be deployed subsea by deploying a remotely operated vehicle (ROV) (200) configured to be disposed and remain resident subsea for an extended time where the ROV comprises an ROV electrical power connector port (202) to be operatively connected to an electrical power supply (700) dedicated to the ROV. An RTMS configured to be disposed subsea for an extended time is also deployed subsea (210), typically proximate the ROV. A subsea docking hub subsea is also deployed subsea proximate the RTMS and operatively connected to the ROV and the RTMS. In addition, an umbilical is connected from the subsea docking hub to a subsea structure and a signal supplied from the subsea structure to the ROV.

Example implementations include a system and method of using plastic from bodies of water and creating a floating platform by collecting plastic from a body of water, cleaning the collected plastic, melting and compacting the plastic, molding a plurality of hexagonal blocks from the compacted plastic, stacking the plurality of hexagonal blocks, wherein a system of springs and an energy storage device is provided between each of the plurality of hexagonal blocks, and coating the stacked blocks with a non-toxic material. Through the use of various onboard functionalities, energy may be generated to regulate temperature and provide electricity, oxygen may be supplied, and water may be purified.

A load arrangement is provided for powering a load on a surface (30) of a marine structure (50) exposed to a liquid (10). The load arrangement has a carrier (100) and a conductor arrangement (110) arranged on the surface of the marine structure and coupled to one pole of a power source (1). The other pole is coupled to the liquid. The carrier has a back surface (102) to cover part of the conductor arrangement and the surface (30) of the marine structure. A load (20) in the carrier receives supply current from the power source via a front electrode (130) arranged for coupling to the liquid, and a back electrode (120) at the back surface arranged for coupling to the conductor arrangement. The load may be an UV-C LED for emitting anti-fouling light.

A system includes a vehicle having a body and a power generation system. The power generation system includes first and second tanks each configured to receive and store a refrigerant under pressure. The power generation system also includes at least one generator configured to generate electrical power based on a flow of the refrigerant between the tanks. The first tank is configured to be cooled by one of ambient air and water to a lower temperature, and the second tank is configured to be warmed by another of the ambient air and the water to a higher temperature. The first tank or associated heat exchanger can be positioned such that the first tank is above the water's surface when a portion of the body breaches the surface. The second tank or associated heat exchanger can be positioned such that the second tank is below the water's surface when a portion of the body breaches the surface.

A maintenance facility includes: a first barge; a first connection portion disposed on the first barge and configured to connect the first barge to a second barge mounted with a device including a maintenance target portion; and a building disposed on the first barge and including a wall portion and a roof portion. On the first barge, a temporary placing space in which the maintenance target portion can be placed is disposed between the first connection portion and the building.

A floating connector of an offshore energy device and a method for connecting the floating connector is provided. The floating connector includes a buoy having a long spar like floater, where the buoy provides buoyancy to the floating connector. The floating connector further includes at least two cables for connecting to the offshore energy device. The floating connector also includes a joint box for coupling to the offshore energy device and for providing an electrical connection of the at least two cables to a switchgear of the offshore energy device. When the joint box is coupled to the offshore energy device, an electrical circuit with the at least two cables is completed through the offshore energy device via the switchgear.

An underwater energy harvesting drone has a primary hull to be submersibly received in ocean water and a plurality of thermoelectric modules, each module of said plurality of thermoelectric modules having a first operational interface in thermal contact with the primary hull. A thermal transfer element is in contact with a second operational interface on the plurality of thermoelectric modules and an electrical power storage device is connected to the plurality of thermoelectric modules. Positioning of the submersible primary hull to create a thermal gradient between the primary hull and the thermal transfer element induces electrical power generation by the thermoelectric modules thereby charging the electrical power storage device.

The invention concerns a floating device for cooperating with an insert via a reversible interlocking connection, comprising a float and having a main hole. In order to propose a floating device adaptable to a very large number of applications, proposing, in particular, an optional multi-step installation, the main hole of such a device is arranged to receive the insert. Moreover, the floating device comprises reversible attachment structure arranged to maintain a relative position of the device along the insert. The invention further concerns a floating system comprising a floating device according to the invention and an insert cooperating with the floating device via a reversible interlocking connection, the insert being designed to produce electrical energy by means of the thermal gradient of the oceans.

A flexible floating reservoir for storing liquids denser than the environmental body of water, such as sea salt brine, is provided. The flexible floating reservoir is adaptable to environmental body waves, such as sea waves. A method for operating the flexible floating reservoir and an underwater energy storage system that uses the flexible floating reservoir are also provided.