In 1996 P&O Containers (now P&O Nedlloyd) planned to build a fleet of large Post-Panamax container ships to operate between the Far East and Europe. These ships, of 80,942 gross tonnage, have accommodation for 6700 containers, over 700 of whichcan be refrigerated containers (reefers) - representing a substantial load on the ship's electrical supply. The ships are each propelled by a single 90,000 hp (65 MW), 100 rev/mm diesel engine, the largest in service at the time of commissioning.An essential part of the design of these ships was that they should be able to operate with low manning levels and be capable of cruising at sea with very low operating costs. Both these requirements had an important impact on the design of the electrical power systems of the ships.
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