Report evaluates CO2 indexing
A report has been commissioned by the European Maritime Safety Agency (EMSA) from Deltamarin of Finland to provide information on tests and trials for several ship types for the evaluation of the applicability of the EEDI (energy efficiency design index). Deltamarin says that this work gives an insight into the complexity of a vessel’s CO2 efficiency.
The analysis was based on Deltamarin’s extensive research into improving the energy efficiency of newbuildings as well as of existing fleets.
The report demonstrates through examples that EEDI would mainly lead to power limitations for new ships. This, in turn, would lead to standardising design speeds at a certain level depending on ship type and size.
Regarding the applicability of the EEDI, the report concludes that the current approach could be feasible with certain reservations for large ocean-going cargo ships which have uniform design criteria, i.e. large tankers, bulk carriers, containerships, LNG carriers, LPG carriers, ro-ro vehicle carriers and the largest general cargo ships. These ship types account for the majority of CO2 emissions from shipping. However, the current EEDI approach is not thought to be feasible for small vessels, passenger, ro-pax and ro-ro ships and short sea shipping in general, or ships designed for a certain route or with a specific transportation task in mind. For these ship types the basic calculation methodology still requires further refinement.
The report has been distributed to all EU flag authorities and the relevant industry organisations, such as shipyard and ship owner associations within the EU. A summary of the conclusions was sent to IMO MEPC 60 by the EU commission and 19 EU member states. The report can be downloaded at EMSA’s web-site.