Patent ID: 8546976

Claim:
A system for supplying electric power from an AC power source to ships, each of the ships being moored at a respective berth of a quay, said system comprising: a rectifier, having an AC and a DC side, for converting AC electric power from the AC power source to a DC power, the AC side arranged to be connected to the AC power source, and a plurality of ship connection arrangements for supplying electric power to a respective ship, each of the ship connection arrangements placed at one of the berths and comprising an inverter configurable to output AC power at a first or a second frequency independently at each of the berths and a ship connector for connecting the ship, characterized in that the system further comprises a DC distribution network connected to the DC side of the rectifier and that the rectifier is placed at a distance from the quay and each of the inverters is connected to the DC distribution network.