Services relevant to EEXI

by | Sep 2, 2021 | Company Info

What is EEXI?

The EEXI (Energy Efficiency Existing Ship Index) is a regulatory measure established by the International Maritime Organization (IMO) to improve the energy efficiency of existing ships. It is part of the broader effort to reduce greenhouse gas emissions and mitigate climate change in the shipping industry. EEXI is one of the key components of the IMO’s strategy to reduce the carbon intensity of international shipping.

The EEXI sets specific requirements for ships to meet in terms of energy efficiency. It is expressed as a numerical value that represents the energy efficiency of a ship relative to a reference line. Ships that do not meet the required energy efficiency levels may be required to take actions to improve their efficiency, such as retrofitting or operational changes. Compliance with the EEXI is determined through an Energy Efficiency Certificate.

The EEXI is closely related to another IMO regulation known as the CII (Carbon Intensity Indicator), which sets carbon intensity reduction targets for individual ships.

These measures are part of the IMO’s broader efforts to reduce greenhouse gas emissions from the shipping industry and achieve its target of reducing total annual greenhouse gas emissions from international shipping by at least 50% by 2050 compared to 2008 levels.

SimFWD has been providing to customers a range of Advanced Engineering Services related to Ship Design. These services have nowadays become relevant to EEXI (Energy Efficiency Existing Ship Index) requirements:

SimFWD has accumulated experience on Ship Hydrodynamic Analysis from Newbuilding and Retrofitting projects of Tankers, Bulk Carriers and Passenger Vessels. The most common ESDs on Tankers are Mewis Ducts or other type of ducts in front of the propellers as well as Boss Cap Fins. Other ESDs consisting only of swirl-eliminating fins are rated less effective due to generally low propeller pitch and hence low swirl losses on these propellers.

SimFWD can assist Clients in EEXI evaluation by means of Propulsion power demand and associated emissions combined with the rest of energy components into a standalone EEXI monitoring and reporting application. Contact us at for more information.

#EEXI #ShipDesign #ShipHydrodynamicAnalysis #ScrubberRetrofitEngineering

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