The International Maritime Organization (IMO) adopted mandatory measures to reduce emissions of greenhouse gases from international shipping at a meeting las week at IMO Headquarters in London. The measures are the first ever mandatory global greenhouse gas reduction regime for an international industry sector.
The newly adopted Energy Efficiency Design Index (EEDI) sets technical standards for improving the energy efficiency of certain categories of new ships which will, in turn, lead to less CO2 emissions, an approximate reduction of 25-30% by 2030.
The EEDI will become mandatory in 2015, and will require a minimum energy efficiency level for different ship types and sizes. The EEDI will be applied to the largest segments of the world merchant fleet, and is expected to cover as much as 70% of emissions from new ships.
A ships' CO2 emissions are directly proportional to its fuel consumption, with, on average, 3.1 tonnes of CO2 being released from each tonne of fuel burnt. The EEDI will require, in the first phase (2015-2019) an efficiency improvement of 10% and will be tightened every five years, to keep pace with technological development and reduction measures. Through its decision today, the IMO has set reduction rates until the period 2025 to 2030 when a 30% reduction in energy consumption is mandated for most ship types calculated from a baseline representing the average efficiency for ships built between 1999 and 2009.