EEXI Calculator

• Estimate Your Vessel’s EEXI and Required Improvement Margin

  • The Energy Efficiency eXisting ship Index (EEXI) is a one-time certification targeting design parameters for existing vessels.

  • Applicable to the following classes above 400 GT: bulk carrier, gas carrier, tanker, containership, cargo vessels, Ro-ro, LNG carrier, cruise vessel.

  • Ships have to approve the attained EEXI value by the first periodical survey in 2023.

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How the tool works

Watch the tutorial for a step-by-step explanation of the tool, or check the case studies below. Download the Excel model to further tweak your analyses. Contact the helpdesk for support and customization options.

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EEXI Excel

€29.00

This excel provides a tool to estimate your EEXI in 10 steps max. It includes references to MEPC, NAPA, ClassNK, Germanischer Lloyd, Bureau Veritas, NeRF and Shipowners Club. Four additional PDFs are included for further reference and guidance. This purchase will allow you to quickly reference and store your EEXI in different scenarios.

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FAQs

• Which ships fall into the scope for the EEXI?

  Item description

• Is verification of the attained EEXI to be carried out by the ships' Classification Society or may this be done by another Recognized Organization (RO)?

  Verification of the attained EEXI includes verification of the EEXI technical file, and possibly verification of the Onboard Management Manual (OMM) and the shaft/engine power limitation. Therefore this can only be carried out by the RO that Classes the ship for Hull and Machinery. See also Resolution MEPC.351(78).

• Is an additional authorisation for the RO's necessary for attained EEXI verification?

  Since the RO's are already authorised to conduct the surveys and to issue the certificates as regulated in MARPOL Annex VI, and the new requirements regarding EEXI and CII are amendments to MARPOL Annex VI, no separate authorisation is required. The Appendix to Annex 1 to the Agreement between the NL and RO dated 03 April 2014 already provides for this (link).

• When shall the verification of the attained EEXI be carried out?

  During the first IAPP survey after 1-1-2023, as per MARPOL Annex VI, regulation 5.4.7. De-harmonisation of the IAPP is not encouraged.

• Is EEXI applicable to fishing ships >400 GT making international voyages?

  No, fishing ships are an exempted ship type.

• Which attained EEXI is to be used for a ship which falls into more than one ship category?

  For ships which are falling into more than one categories of ships, as per MARPOL Annex VI, regulation 23(.1), the most stringent attained EEXI, as calculated for the categories the ship falls into, shall be used.

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Case studies

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References

Hyperlinks and downloads for premium users only

MEPC - 2021 Guidelines on the method of calculation of the attained Energy Efficiency Existing Ship Index (EEXI)

NAPA - The basics of EEXI

ClassNK - Outlines of EEXI Regulation

Germanischer Lloyd - Guidelines for Determination of the Energy Efficiency Design Index

Shipowners Club - EEXI: Applicable Ship Types and Reduction Factors

Bureau Veritas - CII and EEXI Regulation

NeRF - Q&A regarding EEXI and CII