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 floatable offshore structure includes at least one submarine power cable connector configured to connect a submarine power cable. At least one anchor connector is configured to connect at least one anchor connection for anchoring the floatable offshore structure to an underwater bottom, at least one detection arrangement configured to detect an anchor connection breakage indication, and at least one switching equipment configured to at least electrically disconnect the electrical connection to the submarine power cable connected to the submarine power cable connector upon or after the detection of an anchor connection breakage indication.

A floating platform for providing electrical power to a requester of electrical power includes a power generator structured to produce electrical power in excess of 1 Megavolt-Ampere (MVA), at least one high-voltage electrical connector that is structured to couple to an electrical connection from the requester, and a power delivery system that is structured to supply the electrical power in excess of 1 MVA to the requester through the high-voltage electrical connector. The power generator may be turned by an engine running on biofuel. Methods of supplying power from a floating platform to a requesting vessel are also described.

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.

Some embodiments relate to a power generation system. An example floating power generation system comprises: a vessel, the vessel including: a vessel frame, a hull around the vessel frame and defining fore and aft sections, and a deck supported by the vessel frame. A gas turbine may be provided on the vessel to generate electrical power from combustion of natural gas. An organic Rankine cycle (ORC) generator may be provided on the vessel to generate electrical power from heat recovery. A gas supply line may be provided on the vessel for supplying liquefied natural gas (LNG) to the gas turbine. A power supply subsystem may be provided on the vessel to receive electrical power from at least one of the gas turbine or the ORC generator and to supply power to at least one remote power sink that is away from the vessel.

Some embodiments relate to a storage system for liquefied natural gas (LNG). An example storage system for LNG comprises: a floatable vessel formed as a barge, the vessel including: a vessel frame, a hull around the vessel frame and defining fore and aft sections, and a deck supported by the vessel frame; at least two LNG storage tanks carried by the vessel frame. A first LNG storage tank may be positioned on a port side of the vessel and a second LNG storage tank may be positioned on a starboard side of the vessel. Fluid transport conduits connected to the at least two LNG storage tanks to allow fluid flow into and out of the at least two LNG storage tanks may be provided. A valve system to control flow of fluid in the fluid transport conduits may be provided. The vessel frame and the hull may define a broad and shallow draught.