With the Greenhouse Gas Strategy towards 2050, the IMO has set the goal to reduce carbon intensity by 40% within the next decade up to 2030 and by 50% in total (70% intensity) up to 2050. The Greenhouse Gas Strategy was approved by the IMO in 2018. The reduction rates are related to the baseline of 2008. Short-term, mid-term and long-term measures are distinguished to achieve the goal.
Short-term measures are meant to be set into force by 2023. Different measures were considered and widely discussed, and IMO has decided to introduce a combination of technical and operational measures. Whereas the EEXI is the technical measure, just looking at the design of the ship in comparable way as the EEDI does for newbuidlings, the CII is the according operational measure considering the actual consumption and distance travelled for each individual ship in service.
Introduction of the Energy Efficiency Existing Ship Index (EEXI)
During MEPC 76 in June 2021, the IMO adopted amendments to MARPOL Annex VI, introducing an Energy Efficiency Design Index for existing ships (EEXI). The requirements will enter into force at 1st of January 2023. The EEXI is applicable for all vessels above 400 GT falling under MARPOL Annex VI. Guidelines on calculations, surveys and verification of the EEXI have been finalized at MEPC 76. The calculation guidelines refer to corresponding EEDI guideline for newbuildings with some adaptations regarding limited access to design data.
Nevertheless, some details are not finally decided but deferred to MEPC 77 in November this year. This is mainly the consideration of energy efficiency technologies as for example wind assisted propulsion systems and the acceptance of in-service sea trials for determination of the reference ship speed. Other points of interpretation still need an alignment by IACS, e.g. the consideration of boil-off gas for LNG carriers.
Tailored pathways to EEXI compliance
Complying with EEXI doesn’t have to be hard work. DNV has a breadth of experience and expertise you can draw from on your journey to compliance. To ensure an approach which is tailored to meet your needs, DNV has created two potential solutions: a digital self-service tool or the interactive, expert-led route. Click below to learn whether our fully digital ‘EEXI calculator’ or our Advisory service with extensive input from our experts is the right path for you. Act now to stay ahead of the regulatory curve.