The Energy Efficiency Design Index is a non-prescriptive mechanism that allows the shipping industry to use the latest technologies for designing commercial vessels.
EEDI lays down a minimum energy efficiency level, per capacity mile for different ship types and sizes.
The applicable ship types include tankers, bulk carriers, gas carriers, general cargo ships, container ships, refrigerated cargo carriers, and combination carriers.
In 2014, EEDI regulations were amended by MPEC. These extended its scope to LNG carriers, vehicle carriers, ro-ro ships, and cruise passenger ships having hybrid propulsion systems or non-conventional propulsion.
Energy Efficiency Design Index and SEEMP were formulated by IMO as amendments to its interim guidelines MARPOL ANNEX VI at the 62nd Marine Environmental Protection Committee meet in 2011.
This measure was applied to all new vessels above 400 GT, partially built ships, and construction orders after January 2013.
It is estimated using the EEDI formula which calculates the vessel’s Co2 emissions per unit of transport work done while in service. Now, this EEDI has two components:
1) Attained EEDI.
2) Required EEDI.
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