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Shore power or shore supply is the provision of shoreside electrical power to a ship at berth while its main and auxiliary engines are shut down. [1] While the term denotes shore as opposed to off-shore, it is sometimes applied to aircraft or land-based vehicles (such as campers, heavy trucks with sleeping compartments and tour buses), which may plug into grid power when parked for idle reduction.
The electrical power requirements of vessels are expanding as systems are expected to support power converters capable of integrating alternative sources and storage systems – including wind and solar power – and battery storage with a range of voltages, frequencies and power levels.
Load line markings on a cereal carrier, certified by Bureau Veritas.. The purpose of a load line is to ensure that a ship has sufficient freeboard (the height from the waterline to the main deck) and thus sufficient reserve buoyancy.
Bollard pull is a conventional measure of the pulling (or towing) power of a watercraft.It is defined as the force (usually in tonnes-force or kilonewtons (kN)) exerted by a vessel under full power, on a shore-mounted bollard through a tow-line, commonly measured in a practical test (but sometimes simulated) under test conditions that include calm water, no tide, level trim, and sufficient ...
Marine steam reciprocating engines, ca. 1905 A wind propelled fishing boat in Mozambique. Until the application of the coal-fired steam engine to ships in the early 19th century, oars or the wind were the principal means of watercraft propulsion.
A high-voltage shore connection (HVSC) is an electrical connection between a ship and an electric grid, allowing the ship to shut off its engine and reduce fuel consumption and carbon emissions. [1] The ship can use electric power for its consumption of energy. They are mostly used in the cruise ships which dock for longer time and hence save ...
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A ship can cold iron by simply connecting to another ship's power supply. Naval ships have standardized processes and equipment for this procedure. However, this does not change the power source type nor does it eliminate the source of air pollution. The source for land-based power may be grid power from an electric utility company, but also ...