The EEOI should be a representative value of the energy
efficiency of the ship operation over a consistent period which represents
the overall trading pattern of the vessel. Guidance on a basic calculation
procedure for a generic EEOI is provided in the Appendix.
In order to establish the EEOI, the following main steps will
generally be needed:
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.1 define the period for which the EEOI is calculatedfootnote;
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.2 define data sources for data collection;
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.3 collect data;
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.4 convert data to appropriate format; and
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.5 calculate EEOI.