Quality Assurance
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A calculated score to measure the overall energy efficiency of a vessel’s design.

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Same as EEDI, but retrospectively applied to all vessels.

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Grams CO₂ per ton - Nautical (gCO₂/t.Nm)

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The smaller the EEXI, the more energy efficient the design of the vessel.

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What are the requirements?
  • The IMO have agreed on amendments to MARPOL that require all vessels above 400 GT to:
  • Calculate the EEXI and develop an EEXI technical file for the vessel. This Calculated EEXI will be known as the “Attained EEXI’’.
  • Have the Calculation verified by the Flag Administration or a Recognised Organisation.
  • Ensure the Attained EEXI is below the Required EEXI as defined by vessels type and size*.
  • Have the Energy Efficiency (IEEC) Re - Issued.

 

* If the vessel’s Attained EEXI is greater than the Required EEXI, then the vessel will likely require additional technology installed in order to reduce the vessel’s Attained EEXI and to remain in compliance.

Bulk Carrier Example
Bulk Carrier Example
Bulk Carrier Example
Bulk Carrier Example
Bulk Carrier Example
Bulk Carrier Example
What’s the Timeline?
  • The EEXI calculation must be done, and the technical file approved by the Recognised Organisation by the vessel’s first annual, intermediate or full renewal of the Air Pollution Prevention Certificate after the 1st January 2023.
What’s the Timeline?
How can the EEXI be changed?
Engine Power Limiter
Engine Power Limiter
$10,000 - $50,000
Hull Lubrication
Hull Lubrication
> $250,000
Fuel Improvement Devices
Fuel Improvement Devices
$50,000 - $200,000
Engine Power Limiter
Engine Power Limiter
$100,000 - $200,000
EEXI Potential Trajectory
Graph 1
Graph 2