"The M/V Maersk’s principal achievements lie in benefits invisible to all but accountants, naval architects and environmental experts, but the cumulative results are outstanding. Triple-E vessels will travel 184 kilometres using 1 kWh of energy per ton of cargo, whereas a jumbo jet travels half a kilometre using the same amount of energy per ton.The big ship will also, by design and intent in an era of expensive fuel and likely European regulatory caps on CO2 emissions for ships, be a slightly slower ship than previous bulk container carriers, with a top speed of just 23 knots, and a usual cruising speed of 21 knots.
The savings are the result of a unique hull design, an energy-efficient engine, a waste heat recovery system, which uses exhaust gas to produce extra energy to help propel the ship, and a vast economy of scale. Combined, these factors denote that the Triple-E will emit 20 percent less CO2 (per container moved) compared to the Emma Maersk and 50% less than the industry average on the Asia-Europe trade lane."
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