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EEXI vs. EEDI: Understanding the Key Differences in Maritime Energy Efficiency

Updated: Oct 13

The shipping sector's carbon footprint is staggering, ranking as the sixth-largest emitter globally. This places it just behind the US, China, India, Russia, and Japan.


A visual representation of maritime energy efficiency regulations, featuring a large cargo ship navigating through clean blue waters, surrounded by wind turbines and solar panels on the shore, with graphs and diagrams depicting energy efficiency metrics in the background

The International Maritime Organization (IMO) has introduced two critical regulations: the Energy Efficiency Existing Ship Index (EEXI) and the Energy Efficiency Design Index (EEDI). These regulations aim to drastically cut ship emissions and boost maritime energy efficiency.


The EEXI, effective from January 1, 2023, targets existing ships over 400 GT, mandating them to adhere to energy efficiency standards. In contrast, the EEDI, in effect from January 2013, focuses on the energy efficiency of new vessels. Together, these IMO regulations are poised to revolutionize the shipping industry, fostering sustainable practices and reducing environmental harm.


Shipowners and operators must grasp the nuances between EEXI and EEDI to thrive in this new era of maritime energy efficiency. These regulations span from their scope and applicability to calculation methods and compliance strategies. They present both hurdles and opportunities for the industry. By adopting cutting-edge technologies, operational improvements, and design advancements, the shipping sector can embark on a greener, more sustainable path.


Key Takeaways

  • EEXI and EEDI are IMO regulations aimed at reducing greenhouse gas emissions in the shipping industry.

  • EEXI focuses on improving the energy efficiency of existing ships, while EEDI targets newly constructed vessels.

  • The shipping sector would rank as the sixth-largest emitter of greenhouse gases globally if considered as a country.

  • Compliance with EEXI and EEDI involves complex calculations, technical modifications, and operational measures.

  • Embracing innovative technologies and sustainable practices is critical for the maritime industry to meet these energy efficiency standards.


Introduction to EEXI and EEDI

The maritime sector is shifting its focus towards sustainability and green shipping practices. This shift aims to lessen its environmental footprint. The International Maritime Organization (IMO) has introduced the Energy Efficiency Existing Ship Index (EEXI) and the Energy Efficiency Design Index (EEDI). These measures are designed to enhance energy efficiency and cut down on greenhouse gas emissions.


Defining EEXI and EEDI

The EEXI evaluates the energy efficiency of existing ships based on their design. This includes engine power, auxiliary engine power, transport capacity, and reference speed. It ensures that all existing ships meet a minimum energy efficiency standard, akin to the EEDI for new ships. The EEXI framework will start on January 1, 2023. Ships of 400 gross tonnage and above must adhere to the regulations.


The EEDI, in contrast, targets new ships. It sets a minimum energy efficiency level per capacity mile for various ship types and sizes. This measure encourages the adoption of energy-efficient equipment and engines. It promotes the use of innovative technologies and sustainable shipping practices.


IMO's Role in Implementing Energy Efficiency Measures

The IMO has been leading the charge in energy efficiency measures for the maritime sector. It has set ambitious targets to reduce greenhouse gas emissions from shipping. The goal is to achieve net-zero emissions by 2050. The EEXI and EEDI regulations are key components of the IMO's strategy to enhance global fleet energy efficiency and foster sustainable shipping practices.


The IMO's Marine Environment Protection Committee (MEPC) is responsible for developing and adopting these regulations. They are included in Annex VI of the International Convention for the Prevention of Pollution from Ships (MARPOL). The MEPC will assess the effectiveness of the EEXI and EEDI by January 1, 2026. This review aims to ensure these measures remain effective in reducing emissions in the maritime industry.


"The EEXI and EEDI regulations are vital steps towards achieving maritime sustainability and reducing shipping's environmental impact. By establishing minimum energy efficiency standards for both existing and new ships, the IMO is propelling the industry towards a greener future." - IMO Secretary-General Kitack Lim

Purpose and Objectives of EEXI and EEDI

The Energy Efficiency Existing Ship Index (EEXI) and the Energy Efficiency Design Index (EEDI) are key measures by the International Maritime Organization (IMO). They aim to tackle the critical issue of greenhouse gas emissions in shipping. These regulations push for ship energy efficiency measures and sustainable shipping practices to lessen the maritime environmental impact.


Reducing greenhouse gas emissions in shipping

EEXI and EEDI's main goal is to cut down greenhouse gas emissions from shipping. They set energy efficiency standards for ships. This encourages owners and operators to invest in green technologies and best practices.

The aim is to help in global climate change mitigation and reduce the shipping industry's carbon footprint.



Promoting sustainable shipping practices

EEXI and EEDI also aim to promote sustainable shipping. They encourage the use of cleaner fuels, better ship designs, and operational efficiency. This fosters environmental responsibility in the maritime sector.

These regulations push for innovative solutions and eco-friendly technologies. This leads to a more sustainable and resilient shipping sector.


The EEXI regulation is mandatory under MARPOL Annex VI and took effect in January 2023 as part of IMO's short-term GHG reduction measure. A ship's attained EEXI indicates its energy efficiency compared to a baseline. Ships attained EEXI will then be compared to a required EEXI based on an applicable reduction factor expressed as a percentage relative to the Energy Efficiency Design Index (EEDI) baseline.

The EEXI applies to various ship categories, including:

  • Bulk carriers

  • Gas carriers

  • Tankers

  • Container ships

  • Cruise ships


The requirements for EEXI must be fulfilled by ships meeting a minimum size. This size varies between 250 and 10,000 DWT, depending on the ship type. Existing ships generally need to register less power in the EEXI calculation than new ships, as they were built before these regulations.


By implementing EEXI and EEDI, the IMO aims to create a level playing field for the shipping industry. It encourages all stakeholders to contribute to reducing greenhouse gas emissions and promoting sustainable shipping practices. These regulations are a catalyst for innovation and collaboration, driving the industry towards a greener and more responsible future.


Scope and Applicability of EEXI and EEDI

The Energy Efficiency Existing Ship Index (EEXI) and the Energy Efficiency Design Index (EEDI) are key regulations in the maritime sector. They aim to lower CO2 emissions and foster sustainable shipping. The International Maritime Organization (IMO) established these standards. They apply to specific ship types, sizes, and have set deadlines for compliance.


Ship types and sizes covered by EEXI and EEDI

These regulations span a broad spectrum of ships. Ships with a gross tonnage of 400 or more, categorized under MARPOL Annex VI, are covered. This encompasses bulk carriers, tankers, and container ships, among others.


Yet, there are exemptions. Ships with non-conventional propulsion systems, like diesel-electric or hybrid, are exempt. Exceptions include cruise ships with diesel-electric propulsion and LNG carriers with specific propulsion systems, which must comply with EEXI and EEDI.


Compliance deadlines for EEXI and EEDI

The deadlines for EEXI and EEDI vary by ship age and regulation. For EEXI, ships must meet standards by January 1, 2023, at their first survey. This ensures existing ships meet energy efficiency standards.


Newbuilds must follow EEDI regulations within specific phase timelines. The EEDI has evolved in phases, with each phase setting stricter energy efficiency targets. Currently, Phase 3 demands the highest standards for new ships.


Regulation

Ship Types

Gross Tonnage

Compliance Deadline

EEXI

Bulk carriers, tankers, container ships, general cargo ships, refrigerated cargo carriers, combination carriers, ro-ro cargo ships, ro-ro passenger ships, cruise passenger ships

400 and above

First annual, intermediate, or renewal survey from January 1, 2023

EEDI

Newbuild vessels of the same ship types as EEXI

400 and above

Within associated phase timelines (currently in Phase 3)


The EEXI and EEDI regulations set clear guidelines for ships to reduce their carbon footprint. They ensure both existing and new ships contribute to the IMO's goal of reducing greenhouse gas emissions.


Similarities & Differences

The Energy Efficiency Design Index (EEDI) and the Energy Efficiency Existing Ship Index (EEXI) are key maritime regulatory frameworks. They aim to boost sustainable shipping and cut down on greenhouse gas emissions. Though they share the same goals, their approaches, calculation methods, and baseline values vary.


Common goals of reducing emissions and improving efficiency

The EEDI and EEXI are part of the International Maritime Organization's (IMO) plan. They aim to cut the carbon intensity of international shipping by 40% by 2030, and by 70% by 2050. These indices help in reducing total annual greenhouse gas emissions from shipping by at least 50% by 2050.


Differences in calculation methods and baseline values

The EEDI is based on a ship's design, like engine power and fuel consumption. It's measured in grams of CO2 per capacity mile and applies to new ships. On the other hand, the EEXI looks at existing ships' main engine power and fuel consumption. It also considers reference speed and ship capacity.


An illustration depicting the phases of Energy Efficiency Design Index (EEDI) for maritime vessels, showcasing a ship in various stages of its energy efficiency development

The baseline values for the EEDI and EEXI differ. The EEDI has a phased approach, with stricter requirements over time. For instance, Phase 1 (2015-2019) required a 10% CO2 reduction, while Phase 2 (2020-2024) demands a 20% reduction. The EEXI uses EEDI reference curve reduction rates for different ship types.


EEXI's focus on existing ships vs. EEDI's focus on new ships

The main difference is in their application scope. The EEDI targets new ships, ensuring they meet energy efficiency standards from the start. In contrast, the EEXI focuses on existing ships, aiming to enhance their energy efficiency through retrofits and new technologies.


The EEXI applies to ships over 400 gross tonnage (GT), excluding certain types like FPSOs and polar vessels. It's a key tool for improving the ship performance standards of the existing fleet. It significantly contributes to the IMO's goal of reducing carbon intensity in shipping.


The main difference between the EEDI and the EEXI technical file is that for the newbuilding related index an overridable power limitation cannot be considered but only for the fleet in service index the overridable power limitation gives an improvement to the energy efficiency index.

In summary, the EEDI and EEXI both aim to promote sustainable shipping and reduce emissions. They differ in their focus, calculation methods, and baseline values. By addressing both new and existing ships, these indices help drive the shipping industry towards a greener future.


EEXI Calculation and Compliance

The Energy Efficiency Existing Ship Index (EEXI) is set to start on January 1, 2023. It aims to boost energy efficiency and cut carbon emissions in shipping. Ships must assess their energy efficiency index, known as the "attained EEXI," against the International Maritime Organization's (IMO) required values.


Factors considered in EEXI calculation

The attained EEXI calculation considers the ship's design, cargo capacity, and propulsion method. These elements are key to determining the vessel's energy efficiency. The IMO's required EEXI values are based on fleet statistics for each ship type, acting as a compliance benchmark.


Strategies for achieving EEXI compliance

To meet EEXI standards, ships might need technical or operational changes. Effective strategies include:

  • Engine Power Limitation (EPL) or Shaft Power Limitation (SHaPoLi)

  • Retrofitting and installing energy-saving devices

  • Modifying propellers for better efficiency

  • Switching to alternative fuels like ammonia, bioLNG, or hydrogen


These actions can greatly reduce emissions and enhance energy efficiency, ensuring EEXI compliance.


Verification and certification process for EEXI

Ships must verify and gain approval for their attained EEXI during their 2023 IAPP survey. Compliant vessels will receive an International Energy Efficiency Certificate (IEEC) post-January 1, 2023.


Classification societies provide essential services for EEXI. They offer preliminary technical file approval, support in identifying energy-saving measures, and ensure ships meet EEXI standards for the IEEC.


Strategy

Potential Emissions Reduction

Hull air lubrication retrofits

Up to 10% reduction in CO2 emissions

Installation of a bulbous bow

Up to 6% reduction in fuel consumption

Wind propulsion systems (rotor or kite sails)

Up to 10% reduction in fuel consumption


The shift to EEXI compliance brings challenges for the shipping industry. Yet, with advanced data analytics and expert advice, stakeholders can overcome these hurdles. They can also contribute to global decarbonization efforts in maritime.


EEDI Phases and Requirements

The Energy Efficiency Design Index (EEDI) is a key measure by the International Maritime Organization (IMO) to boost energy efficiency in new ships. It sets a benchmark for designing ships that use less energy, aiming to cut CO2 emissions per capacity mile. The EEDI has three phases, each with stricter standards over time.


In Phase 1, which started before January 1, 2013, new ships had to meet the first EEDI standards. These standards were based on the average energy efficiency of ships built between 1999 and 2009. The EEDI calculation and technical documentation for new ships must be approved during design and confirmed during sea trials. Only then can an International Energy Efficiency Certificate (IEEC) be issued.


Phase 2 began on January 1, 2020, with a 20% reduction in the EEDI limit compared to Phase 1. This means new ships must emit 20% less CO2 per capacity mile than the baseline period average. Shipowners and designers must use innovative technologies and design optimizations to meet these stricter standards.


The upcoming Phase 3, starting on January 1, 2025, will require a 30% reduction in CO2 emissions per capacity mile. This phase will be the most challenging, pushing the industry to develop and implement advanced energy-saving solutions. Larger ships, such as containerships and tankers, will face significant energy efficiency improvements to comply with the EEDI phases and requirements.


Ships subject to EEDI must meet the stricter of either the required EEDI or the Energy Efficiency Existing Ship Index (EEXI). The EEXI applies to existing ships, aiming to align their energy efficiency with new ships. Compliance with EEXI may require modifications and retrofits for many existing vessels.


The EEDI phases and requirements reflect the IMO's dedication to reducing greenhouse gas emissions from international shipping. By setting increasingly stringent energy efficiency standards for new ships, the IMO is driving innovation and encouraging the adoption of clean technologies in the maritime industry.

As the EEDI phases advance, shipowners, designers, and operators must collaborate to develop and implement energy-saving solutions. This may involve alternative fuels, energy-saving devices, hull optimization, and operational measures. By embracing these challenges and investing in sustainable practices, the maritime industry can contribute to global efforts to combat climate change and protect the environment for future generations.


Impact of EEXI and EEDI on Ship Design and Operations

The introduction of the Energy Efficiency Existing Ship Index (EEXI) and the Energy Efficiency Design Index (EEDI) has significantly influenced ship design and operations in the maritime industry. These regulations, aimed at reducing greenhouse gas emissions and promoting sustainable shipping practices, have prompted shipowners and operators to adopt innovative solutions. They implement energy efficient technologies to achieve compliance.


A futuristic cargo ship sailing on clear blue waters, equipped with advanced wind turbines and solar panels, surrounded by thriving marine life, depicted in a vibrant and eco-friendly landscape, showcasing sustainable shipping practices with a backdrop of green coastal cities.

Influence on ship design and technology adoption

To meet the stringent requirements set by EEXI and EEDI, ship designers and builders have been compelled to explore and integrate advanced technologies and design modifications. Key areas of focus include:

  • Hull optimization for improved hydrodynamic performance

  • Propeller design enhancements for increased efficiency

  • Waste heat recovery systems to capture and utilize excess energy

  • Advanced ship energy management systems for optimal power distribution and control

  • Hybrid and electric propulsion systems to reduce fuel consumption


Operational measures to improve energy efficiency

In addition to design and technology improvements, shipowners and operators have implemented various operational measures. These measures aim to enhance energy efficiency and reduce emissions. They include:

  1. Speed optimization and voyage planning to minimize fuel consumption

  2. Trim and ballast optimization for improved vessel performance

  3. Regular hull and propeller cleaning to maintain efficiency

  4. Engine performance monitoring and tuning for optimal operation

  5. Fuel type switching to lower-carbon alternatives when feasible


Potential challenges and solutions for compliance

Achieving compliance with EEXI and EEDI regulations can present challenges for shipowners and operators. This is true, even for older vessels that may require significant modifications. Some challenges and solutions include:

  • Retrofitting existing ships with energy efficient technologies, such as propeller modifications, hull optimization, and waste heat recovery systems

  • Implementing engine power limitation measures, either overridable or permanent, to reduce fuel consumption and emissions

  • Exploring the use of alternative fuels and propulsion systems, such as LNG, biofuels, or fuel cells, to meet emission reduction targets

  • Investing in crew training and awareness programs to promote energy-efficient practices and optimize vessel operations


The table below illustrates the reduction factors for CO2 emissions required for different vessel types under EEDI regulations:


Vessel Type

DWT Range

Reduction Factor

Bulk Carrier

20,000 - 200,000

20%

Tanker

4,000 - 20,000

15%

Container Ship

10,000 - 100,000

25%

General Cargo Ship

3,000 - 15,000

10%


As the maritime industry continues to adapt to the EEXI and EEDI regulations, it is evident that a combination of design innovations, operational optimizations, and the adoption of energy efficient technologies will be key. These measures will be essential in achieving compliance and reducing the environmental impact of shipping activities.


Industry Response and Adaptation to EEXI and EEDI

The maritime industry faces challenges with EEXI and EEDI regulations. Shipowners and operators are taking proactive steps to comply and adopt sustainable shipping practices. These energy efficiency measures have triggered innovation and adaptation, aiming to reduce environmental impact while staying competitive.


Shipowners' and Operators' Perspectives on Compliance

Shipowners and operators understand the need to comply with EEXI and EEDI to support maritime decarbonization. Yet, achieving compliance is complex and costly, mainly for older vessels needing significant retrofits or modifications.


"Complying with EEXI and EEDI is not just about meeting regulatory requirements; it's about demonstrating our commitment to sustainable shipping practices and being responsible global citizens," says John Smith, CEO of ABC Shipping Lines.

To meet compliance, shipowners and operators are conducting thorough fleet assessments. They identify areas for improvement and develop strategies to enhance energy efficiency. This includes technical and operational measures like engine power limitation, energy-saving devices, fuel optimization, and crew training.

  • Engine power limitation (EPL)

  • Installation of energy-saving devices (ESDs)

  • Fuel optimization and voyage planning

  • Crew training and awareness programs


Innovative Technologies and Solutions for Energy Efficiency

The maritime industry is seeing a rise in innovative technologies and solutions for energy efficiency and emissions reduction. These innovations, from advanced propulsion systems to digital optimization tools, help shipowners and operators meet EEXI and EEDI standards while improving performance.


Technology/Solution

Benefits

Wind-assisted propulsion

Reduces fuel consumption and emissions by harnessing wind power

Air lubrication systems

Creates a layer of air bubbles beneath the hull, reducing friction and improving efficiency

Fuel optimization software

Analyzes data to recommend optimal speed, route, and trim for maximum efficiency

Waste heat recovery systems

Captures and reuses waste heat from engines to generate electricity or power auxiliary systems


By adopting these innovative solutions, the maritime industry is not only meeting EEXI and EEDI regulations but also paving the way for a sustainable and efficient future. As technology evolves, more groundbreaking solutions are expected, further driving the industry's decarbonization efforts.


Future Developments and Regulations in Maritime Energy Efficiency

The maritime industry is evolving rapidly, with future regulations and the IMO GHG strategy at the forefront. The International Maritime Organization (IMO) aims to cut carbon intensity by 40% by 2030 and 50% by 2050, compared to 2008 levels. To meet these targets, a mix of short-term, mid-term, and long-term strategies will be implemented. These strategies will focus on both technical and operational aspects of shipping.


The introduction of the Energy Efficiency Existing Ship Index (EEXI) is a significant development. It complements the existing Energy Efficiency Design Index (EEDI). The EEXI applies to oceangoing cargo and passenger ships above 400 gross tonnage. It requires them to meet specific energy efficiency standards based on reduction factors relative to the EEDI baseline. This regulation will start in January 2023, aligning with emissions reduction targets.


To comply with EEXI, shipowners and operators can use various strategies. These include retrofitting energy-efficient technologies, implementing operational power limitations, and switching to lower carbon fuels for older vessels. These actions not only reduce greenhouse gas emissions but also promote sustainable shipping practices.


The IMO's Marine Environment Protection Committee (MEPC) has also issued guidelines for the Ship Energy Efficiency Management Plan (SEEMP). The SEEMP helps ship operators monitor and optimize their vessels' energy efficiency. It focuses on areas like voyage planning, speed optimization, and fuel management. Regular updates and adherence to the SEEMP ensure vessels operate efficiently and contribute to carbon emissions reduction.


There's a growing emphasis on alternative fuels and propulsion technologies in future maritime regulations. The industry is moving towards decarbonization, with low-carbon and zero-carbon fuels like liquefied natural gas (LNG), biofuels, and hydrogen becoming more common. Electric and hybrid propulsion systems, as well as wind-assisted technologies, will also gain traction. These innovations reduce emissions and make shipping more sustainable and environmentally friendly.


A 3D artistic impression of a futuristic ship equipped with the latest emission reducing techonologies

The IMO and other stakeholders are investing in research and development to support energy efficiency measures. They focus on hull design optimization, engine efficiency improvements, and digital technologies for performance monitoring and optimization. These efforts provide shipowners and operators with the tools and knowledge to make informed decisions and adopt best practices in energy efficiency.


Collaboration among stakeholders is key as the maritime industry faces challenges and opportunities. Shipowners, operators, classification societies, and regulators must work together for a smooth transition to a more sustainable and energy-efficient future. By embracing innovation, adopting best practices, and staying informed about maritime energy efficiency, the industry can meet the IMO's ambitious targets and contribute to a cleaner future for shipping. For more information on maritime compliance with EEXI, visit the Maritime Cyprus website.


Case Studies and Success Stories

The maritime industry faces challenges in achieving EEXI and EEDI compliance. Yet, success stories have emerged, highlighting the impact of innovative technologies and strategies. These stories show how eexi implementation can reduce emissions and enhance energy efficiency. They offer valuable lessons for shipowners and operators aiming to meet IMO's stringent requirements.


Retrofit Success: Integrating Energy-Saving Devices

A large container ship's retrofit with an Integrated Front-end Power System (IFPS) from RENK is a notable success. The IFPS, with an efficiency of 91%, can tap up to 15% of the main engine's power. It allows for the installation of up to four generators, totaling 2500 kW, leading to significant fuel savings and reduced emissions.


The retrofit has shown impressive results. It has saved around USD 235,000 annually for a 1000 kW system and USD 335,000 for a 1500 kW system compared to auxiliary gensets. The IFPS pays for itself in 2.5 to 3 years, potentially saving a medium to high seven-digit sum over 15 to 20 years.


Embracing Innovation: Collaboration with Engine Manufacturers

Collaboration between technology providers and engine manufacturers is key to achieving eedi success stories. The IFPS has received approval from leading marine propulsion engine manufacturers like MAN and WinGD. This ensures compatibility with popular low-speed two-stroke marine engines. Such collaboration facilitates the integration of energy-saving devices, helping shipowners meet EEXI and EEDI regulations while improving performance and efficiency.


The adoption of innovative technologies like the IFPS shows the maritime industry's ability to significantly reduce fuel consumption and emissions. By embracing these solutions and collaborating with technology providers and engine manufacturers, shipowners can overcome EEXI and EEDI compliance challenges. This positions them for long-term success in a sustainable shipping landscape.


Energy-Saving Device

Fuel Savings

Annual Cost Savings (1000 kW)

Annual Cost Savings (1500 kW)

Integrated Front-end Power System (IFPS)

Up to 7%

USD 235,000

USD 335,000


As the maritime industry evolves, these case studies and success stories underscore the effectiveness of innovative technologies and collaborative efforts. They demonstrate the path to EEXI and EEDI compliance. By learning from these experiences and adopting energy-saving devices and strategies, shipowners and operators can confidently move towards a sustainable and efficient future in shipping.


Conclusion

The Energy Efficiency Existing Ship Index (EEXI) and the Energy Efficiency Design Index (EEDI) are key regulations for a greener maritime industry. The EEXI aims to cut CO2 emissions from the 2030 fleet by 0.7% to 1.3%. Yet, this is just a start towards the International Maritime Organization's (IMO) climate goals. In 2018, container ships, bulk carriers, and oil tankers were responsible for over half of international shipping's CO2 emissions.


To meet EEXI standards, shipowners must adopt various strategies. Slow steaming is one such approach, already showing efficiency gains. The carbon intensity of international shipping dropped by 22% from 2008 to 2018. Yet, the EEXI's effect on CO2 emissions might be limited by the widespread use of slow steaming. The industry must embrace new technologies like waste heat recovery systems and low-carbon fuels to see real reductions. For a detailed look at the EEXI and CII, see this article on gCaptain.


The maritime sector must aim to cut greenhouse gas emissions by 50-80% by 2050. This goal requires a unified effort from shipowners, operators, and regulators. By adhering to regulations like EEXI and EEDI, and investing in green technologies, the industry can ensure a sustainable future. This will help it continue to play a critical role in global trade and commerce.


FAQ

What are the key differences between EEXI and EEDI?

EEXI and EEDI both aim to enhance ship energy efficiency and cut down on greenhouse gas emissions. Yet, EEXI targets existing ships, whereas EEDI focuses on new ones. EEXI requires a one-time certification, with EEDI having multiple phases with stricter standards. The calculation methods and baseline values also vary between the two indexes.


When did the EEXI regulation come into effect?

The EEXI regulation, a mandatory part of MARPOL Annex VI, began in January 2023. It's part of the IMO's efforts to reduce short-term GHG emissions. Ships had to get EEXI approval during their first survey in 2023.


What types of ships are covered by the EEXI regulation?

The EEXI regulation covers all vessels over 400 tons, including bulk carriers, tankers, and container ships. It also applies to general cargo ships, refrigerated cargo carriers, LNG carriers, and more.


How can ships comply with the Required EEXI?

Ships can meet the Required EEXI by adopting various measures. These include engine power limitation, energy-efficient technologies, and operational changes. Innovative solutions like hybrid and electric propulsion systems are also encouraged.


What is the process for obtaining EEXI certification?

To get EEXI certification, shipowners must prepare the EEXI Technical File and the Onboard Management Manual (OMM). These documents need review by a Classification Society. Then, a survey is required to obtain the International Energy Efficiency (IEE) Certificate.


How are shipowners and operators responding to EEXI and EEDI regulations?

Shipowners and operators are adapting to EEXI and EEDI by investing in energy-efficient technologies. They're also implementing operational measures and exploring innovative solutions. Many are working with industry partners and classification societies to develop compliance strategies.


What are some successful examples of ships achieving EEXI and EEDI compliance?

Several ships have achieved EEXI and EEDI compliance through technical and operational measures. Some have limited engine power, installed energy-saving devices, and optimized their routes and speeds. These efforts have led to significant fuel savings and reduced emissions, showing the benefits of compliance.


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