Patent ID: 8736100

Claim:
A ship, characterized in that the ship comprises: a main engine and an auxiliary engine independently of each other, the main engine being configured to obtain propulsive power, the auxiliary engine being configured to generate electric power; and a plurality of subsystems constructed by dividing a network of power supply lines and a network of signal lines for transmitting information into a plurality of groups, the plurality of subsystems include at least two of a bridge subsystem for equipment of a bridge, a propulsion subsystem for propulsion equipment in an engine room, a deck subsystem for equipment installed on a deck, a ballast cargo subsystem for equipment for ballast operation and equipment installed in a hold, and an information processing subsystem for communication equipment, the plurality of subsystems each have a storage battery and a smart meter, and are each linked to a microgrid monitoring and control system, and the microgrid monitoring and control system is configured to weight the plurality of subsystems to determine to which of the subsystems to supply electric power in priority.