Auxiliary diesel generators that power cargo handling equipment and other ship services while in port are the primary source of air emissions from ships in ports today, since the auxiliaries run on bunker or heavy fuel oil. Cold ironing mitigates harmful emissions from diesel engines by connecting ships to a more environmentally friendly, shore-based source of electrical power. The source for the land-based power may be from generators powered by renewable energy such as wind, water or solar sources.
Shore power saves on consumption of fuel that would otherwise be used to power vessels while in port and eliminates the air pollution associated with consuming that fuel. The use of shore power facilitates the maintenance of a ship’s engines and generators, while reducing noise.
Cold ironing will be made available on a number of berths at the New Port. This is one step towards making the operation processes more environmentally friendly.