REQUIRED AND ATTAINED EEDI
REQUIRED EEDI The Required EEDI is the maximum allowable value of the attained EEDI permissible for a specific ship type and size. The Required EEDI represents a minimum energy efficiency requirement for new ships depending on ship type and size. This begins with a baseline in 2013 and is raised successively in three steps until 2025. The baseline for required EEDI is calculated from the EEDI of vessels built after the millennium.The EEDI assesses the energy consumption of the vessel at noral seafaring condition, taking into account the energy required for propulsion and the hotel load for the crew. Energy consumed to maintain the cargo and for the manoeuvring or ballasting is not considered. The Required EEDI is calculated for all ship types using 100% of the dead weight at summer draft,except for passenger ships where GT is used. According to MARPOL Annex 6 chapter 4 regulation 21 Required EEDI is:- (1-x/100) * Reference line value The reference value is defined by a line which ...