A study on EEDI and EEXI requirements and ship emission reduction strategies

  • Mihaela Amoraritei "Dunarea de Jos" University of Galati
Keywords: Energy Efficiency Design Index (EEDI), Energy Efficiency Existing Ship Index, (EEXI), ships CO2 emissions.

Abstract

As response to the growing pressure to reduce Green House Gases emissions from ships with detrimental effects on the environment and climate, the International Maritime Organization (IMO) has developed mandatory requirements and regulatory tools such as: Energy Efficiency Design Index (EEDI), Energy Efficiency Existing Ship Index (EEXI), Ship Energy Efficiency Management Plan (SEEMP) and Carbon Intensity Indicator (CII). The paper
presents o comparative study of EEDI and EEXI requirements, as a set of technical measures to improve ships’ energy efficiency and to reduce emissions in line IMO targets. The paper analysis the specific role of each index and how they together contribute to emissions reduction in the design and construction stages and through operational phases of the ship’s life.

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References

[1]. International Maritime Organization https://www.imo.org/en/ourwork/environment/pages/improving %20the%20energy%20efficiency%20of%20ships.aspx
[2]. International Maritime Organization, “Guidelines on the method of calculation of the attained Energy Efficiency Design Index (EEDI) for new ships” 2014,2018, Resolution MEPC.364 (79) 2022.
[3]. International Maritime Organization,” Resolution MEPC 350(78) -2022 Guidelines on the method of calculation of the Attained Energy Efficiency Existing Ship Index (EEXI)”
[4]. International Maritime Organization,” Resolution MEPC 352(78) -2022 Guidelines on operational carbon Intensity Indicators and the calculation methods CII Guidelines, G1)”
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[14]. Kamath, S., “EEXI vs EEDI: What’s the Difference and Why It Matters”, 2025, https://www.neptunus-power.com/blog/marine-emission-standards/eexi-and-eedi/
Published
2025-12-13
How to Cite
1.
Amoraritei M. A study on EEDI and EEXI requirements and ship emission reduction strategies. Annals of ”Dunarea de Jos” University of Galati. Fascicle XI Shipbuilding [Internet]. 13Dec.2025 [cited 15Dec.2025];48:149-58. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/fanship/article/view/9450
Section
Articles