EEDI Guidance Notes v3.0_tcm155-240648

Implementing the Energy Efficiency Design Index (EEDI)

Guidance for owners, operators, shipyards and tank test organisations

i

Contents

1. Scope of this document 2

2. EEDI Purpose 2

3. EEDI Application 2

4. Reference lines and reduction factors (required EEDI) 3

4.1 Reference lines 3

4.2 Reduction factors and implementation 3

5. The EEDI equation (attained EEDI) 4

6. Verification processes for the attained EEDI 5

6.1 Pre-verification overview 5

6.2 Final verification overview 5

7. Verification responsibilities 6

7.1 Verifier (Classification society/RO) 6

7.2 Shipbuilder 6

7.3 Tank test organisation 7

8. Document submission requirements 8

8.1 Overall document submission responsibility 8

8.2 Confidentiality issues 8

8.3 Pre-verification documents 8

8.4 Final verification documents 9

9. Technical methods for EEDI reduction 10

Appendices 12

Appendix 1 – Useful references 12

Appendix 2 – Glossary 12

Appendix 3 – IMO background on energy efficiency regulation 13

Appendix 4 – List of parameters that affect the EEDI 13

Appendix 5 – EEDI reduction phases and cut-off limits 14

Appendix 6 – Lloyd’s Register EEDI verification process 15

Appendix 7 – Review and witness points 16

Appendix 8 – EEDI technical file contents 18

Implementing the Energy Efficiency Design Index Version 3.0, December 2012

2

1. Scope of this document

These guidance notes provide advice to owners, operators, shipyards and tank test organisations who are

looking to prepare themselves for mandatory implementation of the Energy Efficiency Design Index (EEDI).

The guidance covers the following:

- Current status of the IMO regulations

- Responsibilities of the different parties involved in EEDI verification

- Information on what options are currently available for ensuring compliance

2. EEDI Purpose

The EEDI is a design index, primarily applicable to new ships, that has been developed by the IMO and is to

be used as a tool for control of CO2 emissions from ships. The IMO aims to improve the energy efficiency

of ships via mandatory implementation of the EEDI.

3. EEDI Application

The Regulations on Energy Efficiency relating to the EEDI and SEEMP are mandatory from 1st January 2013

within a new Chapter 4 of MARPOL Annex VI. Within the regulations, there remains the option for

Administrations to adopt a waiver up to 4 years from the entry-into-force criteria.

The EEDI affects new ships above 400 gross tonnes1 and applies to the ship types shown in Table 1 below.

A ship’s attained EEDI (using the equation and verification procedure described in the following sections)

must be equal to or less than the required EEDI for that ship type and size, which will be a function of the

reference line value and a reduction factor X i.e.:

The key documents and guidelines for the calculation and verification of the EEDI are summarised in

Appendix 1.

1 At present excludes ships with steam turbine, diesel-electric and hybrid propulsion

Attained EEDI ≤ Required EEDI = (1-X/100) × Reference line value


3

4. Reference lines and reduction factors (required EEDI)

4.1 Reference lines

Reference lines have been developed by the IMO for a number of ship types. The EEDI reference lines refer

to statistically average EEDI curves derived from data for existing ships. The reference lines are ship specific

and dependent on ship type and size. Reference line values are calculated using the following table and

equation:

Reference line value = a × b-c

Ship type (as defined in MARPOL Annex VI Chapter 4, Regulation 2)

a b c

Bulk carrier 961.79 DWT of the ship 0.477

Gas carrier 1120.00 DWT of the ship 0.456

Tanker 1218.80 DWT of the ship 0.488

Container ship 174.22 DWT of the ship 0.201

General cargo ship 107.48 DWT of the ship 0.216

Refrigerated cargo carrier 227.01 DWT of the ship 0.244

Combination carrier 1219.00 DWT of the ship 0.488

Passenger ship

Not initially subject to reference lines. Attained EEDI still needs to be calculated. Ro-ro cargo ship

Ro-ro passenger ship

Table 1: Parameters for determination of reference values for the different ship types (MARPOL Annex VI, Regulation 21)

4.2 Reduction factors and implementation

Reduction factors will be used to implement the EEDI in phases so as to gradually reduce the required EEDI

in much the same way as NOx and SOx limits. These reduction factors will apply to specific ship types and

sizes given in Table 5 in the Appendix. Figure 1 shows the concept of how these reduction factors will be

implemented over time.

EED

I[g

CO

2/t

e.n

m]

Capacity [DWT or GT]Cut off limit

0%

Phase 0: 2013-2015

-10%

Phase 1: 2015-2020

-30%

Phase 3: 2025 +

-15%

-20%

Phase 2: 2020-2025

Figure 1: EEDI concept


4

5. The EEDI equation (attained EEDI)

The EEDI equation calculates the CO2 produced as a function of a ship’s transport work performed. In other

words, the equation provides a measure of the ship’s ‘benefit to society’ by establishing how much CO2 is

produced per transport work done. This equates to g CO2 / tonne.nm. Figure 2 shows the EEDI calculation

formula.

𝑓𝑗

𝑀

𝑗=1

𝑃𝑀𝐸 𝑖 ∙ 𝐶𝐹𝑀𝐸 ∙ 𝑆𝐹𝐶𝑀𝐸

𝑛𝑀𝐸

𝑖=1

𝑓𝑗

𝑀

𝑗=1

∙ 𝑃𝑃𝑇𝐼 𝑖

𝑛𝑃𝑇𝐼

𝑖=1

− 𝑓𝑒𝑓𝑓 𝑖 ∙ 𝑃𝐴𝐸𝑒𝑓𝑓 𝑖

𝑛𝑒𝑓𝑓

𝑖=1

𝐶𝐹𝐴𝐸 ∙ 𝑆𝐹𝐶𝐴𝐸 𝑓𝑒𝑓𝑓 𝑖 ∙ 𝑃𝑒𝑓𝑓 𝑖

𝑛𝑒𝑓𝑓

𝑖=1

∙ 𝐶𝐹𝑀𝐸 ∙ 𝑆𝐹𝐶𝑀𝐸 𝑃𝐴𝐸 ∙ 𝐶𝐹𝐴𝐸 ∙ 𝑆𝐹𝐶𝐴𝐸

Main engine(s) Auxiliary engine(s) Energy saving technologies (auxiliary power)Energy saving technologies (main power)

Transport work

𝑓𝑖 ∙ 𝑓𝑐 ∙ 𝐶𝑎𝑝𝑎𝑐𝑖𝑡𝑦 ∙ 𝑓𝑤 ∙ 𝑉𝑟𝑒𝑓

Figure 2: EEDI equation

The top line of the EEDI equation is characterised by four key terms, whereby the energy saving

technologies terms may include, for example, waste heat recovery systems, use of wind power or solar

power. The CO2 produced is based on the product of the power, specific fuel consumption and carbon

factor for a particular type of fuel used.

The bottom line of the equation relates the total CO2 generated by each of the four terms, to ship capacity

and speed. In addition, there are a series of correction factors that moderate the equation. These account

for:

Ship design factors (e.g. Ice-Class and shuttle tankers)

Weather factor for decrease in speed in representative conditions

Voluntary structural enhancement

Ships built to Common Structural Rules (CSR)

Capacity correction for chemical tankers and LNG ships

The calculation of the EEDI is detailed within the 2012 Guidelines on the Method of Calculation of the

Attained EEDI for New Ships (IMO Resolution MEPC.212(63)

A list of parameters that have an effect on the EEDI is included in Appendix 4.


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6. Verification processes for the attained EEDI

Verification of the EEDI is in two stages; pre-verification which commences at the design stage and final

verification upon completion of the sea trials and commissioning. Details of the verification methodology

are given in IMO resolution MEPC.214(63) and the overview process is shown below:

Figure 3: IMO EEDI Survey and Certification Process (MEPC.214(63))

6.1 Pre-verification overview

Pre-verification at the design stage, requires model tests to obtain the ship predicted speed and power in

the EEDI and sea trial condition and the development of an EEDI Technical File (EEDI-TF) containing

necessary information to support the verification of the calculated ‘Attained’ EEDI.

6.2 Final verification overview

Final verification of the ‘Attained’ EEDI will normally be done based on completion of commissioning trials

in order to determine the reference (EEDI) speed from corrected speed-power performance of the ship.

This will be assessed using the IMO preferred standard of ITTC 7.5-04-01-01.2 or ISO 15016:2002 and

speed trials should be carried out for at least three points (the range of which to include 75% MCR) for

each ship in order to establish the reference (EEDI) speed for the calculation. If a trial is not possible under

‚EEDI conditions‛, the results will have to be extrapolated by methods acceptable to the verifier. All

verification will be carried out by an RO.

Basic Design Tank Test*,

EEDI Calculation

Submission of additional

information

Sea Trial

Shipowner Shipbuilder Verifier

Development of EEDI Technical File

Application for EEDI pre-

verification

Submission of EEDI Technical

File

Application for EEDI

verification

Modification and Resubmission of EEDI Technical File

Verification:

- EEDI Technical File

- additional information

Issuance of

Report of pre-verification

Verification:

- sea trial condition

- ship speed - revised EEDI Technical File

Issuance of

Report of verification

Start of ship construction

Delivery of ship * To be conducted by a test

organisation or a shipbuilder itself.

Pre

-Verificatio

n

Final V

erifica

tion

Witness Model Tank Test


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7. Verification responsibilities

7.1 Verifier (Classification society/RO)

Facility previous experience or

ISO 9000?

PRE – VERIFICATION

Audit & check quality control documentation

Check EEDI computation and procedure to obtain the speed

curves (examine justifications for omissions of tank tests, if any)

Agree test plan

Check ship model & propeller

Witness tank tests

Issue pre-verification report

Yes

No

FINAL VERIFICATION

Check sea trials plan

Attend sea trials

Check final report for VREF and EEDI

Issue certificate

Figure 4: Verifier procedure (Industry Guidelines, MEPC 64/INF22)

During the EEDI verification, the Classification Society will have to verify (review and witness) a number

of documents and stages of the ship construction. These are summarised in Table 6 in the Appendices.

A more detailed process containing the individual steps followed by Lloyd’s Register carrying out the EEDI

verification is shown in Figure 6 in the Appendices.

7.2 Shipbuilder

The shipbuilder responsibilities at different steps of the EEDI process are outlined in Figure 3 above and in

Figure 6 in the Appendices. In general, the shipbuilder shall:

- Ensure that the EEDI technical file is prepared in accordance with the IMO guidelines

- Provide to the verifier all supporting documents required in accordance with IMO guidelines. These are

summarised in Table 2 and Table 3. It must be noted that although some documents (for example

tank test reports) may originate from a third party it is the shipbuilder’s responsibility to obtain

these documents and submit them to the verifier.


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- Revise the EEDI technical file and/or other associated documents if found not to be in accordance with

IMO guidelines

- Conduct the sea trial to an agreed standard, for example:

- ITTC 7.5-04-01-01.1

- ISO 19019:2005

- Perform the speed-power results analysis in accordance with the standards accepted by the IMO:

- ITTC 7.5-04-01-01.2 (IMO preferred method)

- ISO 15016:2002

- Make all necessary arrangements for the verifier surveyors to attend the sea trial

7.3 Tank test organisation

The tank test organisation has a key role in the pre-verification stage and the key responsibilities are

summarised below:

- Provide the verifier with the information and access required in order to check its quality system. If

previous experience is insufficiently demonstrated, the tank test facility should allow the verifier to

possibly audit its quality management system.

- Provide the verifier with the documents required in accordance with the IMO guidelines, summarised

in Table 2.

- Make all necessary arrangements for the verifier surveyors to attend part of the model tank tests which

are directly related to the EEDI.

- Allow the verifier surveyor to check key points of the process in accordance with the Industry

Guidelines (MEPC 64/INF22) and as summarised in Table 6. In particular, allow the verifier to check

that the power curves at full scale are determined in a consistent way between sea trials and EEDI

loading conditions, applying the same calculation process of the power curves and considering

justifiable differences of experience based parameters between the two conditions.

It is recognised that required IMO procedures for sea trial may differ than existing shipyard

practices (e.g. the number of speed-power measurements and length of run).

However, for the purposes of EEDI verification the IMO procedures must be followed,

otherwise the Verifier may consider the sea trial invalid and, subsequently, be unable to

issue an International Energy Efficiency Certificate (IEEC)


8

8. Document submission requirements

8.1 Overall document submission responsibility

Although some of the documents contained below (e.g. tank test reports) may originate from a third party

(e.g tank test organisation) it is the shipbuilder’s responsibility to request and ensure that these documents

are submitted to the verifier.

8.2 Confidentiality issues

In line with the IMO Verification Guidelines (4.1.2), it is recognized that the documents listed above may

contain confidential information of submitters, which requires Intellectual Property Rights (IPR) protection.

In the case where the submitter requires a non-disclosure agreement with the verifier, the additional

information should be provided to the verifier upon mutually agreed terms and conditions.

In this case, Non-Disclosure Agreements (NDAs) need to be signed between:

- The shipbuilder and the verifier, for information owned by the shipbuilder

- The tank test organisation and the verifier, for information owned by the tank test organisation facility

8.3 Pre-verification documents

Document Description

EEDI Technical File EEDI Technical File as defined in the IMO Verification Guidelines. See example of the EEDI Technical File in Appendix 1 of IMO Verification Guidelines

NOx Technical File

Copy of the NOx Technical File and documented summary of the SFC correction for each type of main and auxiliary engine with copy of EIAPP certificate. Note: if the NOx Technical File has not been approved at the time of the preliminary verification, the SFC value with the addition of the guarantee tolerance is to be provided by Manufacturer. In this case, the NOx Technical File should be submitted at the final verification stage.

Electric Power Table If PAE is significantly different from the values computed using the formula in 2.5.6.1 or 2.5.6.2 of the IMO Calculation Guidelines

Ship lines and model particulars

- Lines of ship - Report including the particulars of the ship model and propeller model

Verification file of

power limitation technical arrangement

If the propulsion power is voluntarily limited by verified technical means

Power curves Power-speed curves predicted at full scale in sea trial condition and EEDI condition

Description of the tank test facility and tank test organisation quality manual

If the verifier has no recent experience with the tank test facility and the tank test organization quality system is not ISO 9001 certified. - Quality management system of the tank test including process control, justifications concerning repeatability and quality management processes - Records of measuring equipment calibration as described in Appendix 3 - Standard model-ship extrapolation and correlation method (applied method and tests description)

Gas fuel oil general arrangement plan

If gas fuel is used as the primary fuel of the ship fitted with dual fuel engines. Gas fuel storage tanks (with capacities) and bunkering facilities bare to be described

Tank Tests Plan Plan explaining the different steps of the tank tests and the scheduled inspections allowing the verifier to check compliance with the items listed in


9

Appendix 1 of the industry guidelines concerning tank tests

Tank Tests Report

- Report of the results of the tank tests at sea trial and EEDI condition as required in Appendix 4 of the industry guidelines

2

- Values of the experience-based parameters defined in the standard model-ship correlation method used by the tank test organization/shipyard - Reasons for exempting a tank test, only if applicable - Numerical calculations report and validation file of these calculations, only if calculations are used to derive power curves

Ship reference speed Vref

Detailed calculation process of the ship speed, which should include the estimation basis of experience-based parameters such as roughness coefficient, wake scaling coefficient

Table 2: Pre-verification documents (Industry Guidelines, MEPC 64/INF.22)

8.4 Final verification documents

Document Description

Sea trials plan Description of the test procedure to be used for the speed trial, with number of speed points to be measured and indication of PTO/PTI to be in operation, if any.

Sea trials report Report of sea trials with detailed computation of the corrections allowing determination of the reference speed Vref

Final stability file Final stability file including lightweight of the ship and displacement table based on the results of the inclining test or the lightweight check

Final power curves Final power curve in the EEDI condition showing the speed adjustment methodology

Revised EEDI technical file

Including identification of the parameters differing from the calculation performed at the initial verification stage

Ship lines Lines of ship as built

NOx Technical File In case this has not been submitted at the pre-verification

Table 3: Final verification documents (Industry Guidelines, MEPC 64/INF.22)

2 MEPC 64/ INF.22 or latest revision


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9. Technical methods for EEDI reduction

There are a number of technical methods, at present, that are being explored in order to help owners

reduce the EEDI of their ships. All of these methods fall broadly under four key categories:

Design

Design for increased capacity and/or lighter ships;

Innovative / renewable technologies, reducing all or significant portion of CO2 using mainly renewable energy;

Technology

Engine selection for speed reduction;

Use of energy efficient technologies requiring less fuel for same amount of power;

Operation

Speed reduction

Fuel

Use of low carbon fuels.

The table below describes some of the considerations in regard to some of the potential solutions for each

of these methods.

Technical method

Potential solution

Comments

Design Increase in deadweight

There may be scope for increasing the deadweight of a ship via

reductions in lightweight or improved design. Consideration should be given to ensuring adequate structural safety margins if reducing design scantlings.

Hull optimisation

Hull form resistance constitutes about 70% of the power

consumed. Hull optimisation can yield significant fuel savings, especially if starting from a hydrodynamically poor hull. Improvements can be made to the bulbous bow, hullform, stern bulb, transom or appendages as required.

Aerodynamic optimisation

In a strong headwind, aerodynamic drag can contribute more than

10% of the total ship resistance. For many vessel types, this loss can be significantly reduced through superstructure modifications, flow deflectors, fairings and bow visors.

Propulsive optimisation

Wake field optimisation can improve propeller efficiency, reduce fuel consumption, and limit adverse cavitation effects such as erosion, noise and vibration. This is best achieved through local hull form modifications. The location of flow improvement devices on the hull or rudder can also be optimised

Wind power

Offers the potential for considerable CO2 savings. Investment is required in terms of installing propulsion systems e.g. sails and kite technology. Consideration needs to be given to any required structural enhancements to cater for increased loads. Reliance is placed on consistent wind conditions in order to benefit from this source of energy.

Solar power Photovoltaic cells (solar panels) are another form of renewable


11

Technical method

Potential solution

Comments

energy that can offer significant CO2 and other emission reductions. The cost to benefit ratio of this source is quite high as a large area of cells are required to produce a small amount of power. At present, the efficiency of this technology means energy concentrations can augment power requirements but not replace a ship’s primary power source.

Nuclear power

This source of energy could remove all CO2, NOx and SOx

emissions. Other benefits of this technology include smaller space requirements for the power source therefore potential for increased cargo capacity. Nuclear power is becoming more competitive given rising fuel oil prices although issues surrounding safety and disposal of nuclear waste remain.

Technology Engine selection Many engine manufacturers now offer improved engine designs aimed at optimising performance.

Efficient technologies (hull coatings, hull appendages, waste heat recovery systems etc.)

Many technologies are available ‘off-the-shelf’ although can sometimes be difficult to quantify their benefits. Some, for example advanced hull coatings, are being increasingly used whereas waste heat recovery and hull-propeller systems could be used if their cost-effectiveness is improved.

Operation Speed reduction

Slow steaming is very effective at reducing consumption and CO2 but may require the ship to operate outside its rated envelope meaning lower combustion temperatures and pressures leading to higher maintenance and possible increase in particulate matter emissions. Reducing the speed of the world fleet may also fuel the shift in freight transport to other modes such as land and air in order to maintain capacity.

Fuel LNG

Demand is increasing from owners wishing to use this fuel. Replacing conventional marine fuel oil with LNG would potentially eliminate SOx emissions and drastically reduce NOx emissions whilst reducing CO2 by around 20%. LNG availability is limited in certain global areas with limited refuelling terminals and development of new terminals is linked to demand and vice versa. Other considerations of the use of LNG relate to safe use and the increased storage onboard in specialised tanks. Methane slip from LNG use is potentially more harmful than the benefits.

Biofuels

An attractive alternative to marine diesel in terms of potential savings in CO2 emissions although the impact of bio-fuel production is not fully clear. Bio-diesel is expensive in comparison to marine diesel and the lower energy content means larger bunker tanks would be required onboard ships.

Table 4: Examples of innovative technical and fuel options for EEDI Reduction


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Appendices

Appendix 1 – Useful references

1. IMO Resolution MEPC.203(62);

2. 2012 Guidelines on the Method of Calculation of the Energy Efficiency Design Index (EEDI) for new

ships, MEPC.212(63);

3. 2012 Guidelines on Survey and Certification of the Energy Efficiency Design Index (EEDI)

MEPC.214(63);

4. Guidelines for Calculation of Reference Lines for use with the Energy Efficiency Design Index (EEDI)

MEPC.215(63);

5. BIMCO, CESA, IACS, ICS, INTERCARGO, INTERTANKO, ITTC, OCIMF and WSC, First version of industry

guidelines on calculation and verification of the Energy Efficiency Design Index (EEDI), MEPC 64/INF.22

6. International Towing Tank Conference, ITTC Recommended Procedures 7.5-04-01-01.2.1, "Speed and

Power Trials, Part 1 Preparation and Conduct" and 7.5-04-01-01.2, "Speed/power trials, part 2,

analysis of speed/power trial data", MEPC 64/INF.6

7. International Organization for Standardization, ISO 15016:2002 – ‚Guidelines for the assessment of

speed and power performance by analysis of speed trial data‛

8. Lloyd’s Register EEDI Frequently Asked Questions (www.lr.org/eedi)

Appendix 2 – Glossary

Term Definition

COP Conference Of Parties

DAD Lloyd’s Register Design Appraisal Document

DSO Lloyd’s Register Design Support Office

EEDI Energy Efficiency Design Index

EEDI-TF Energy Efficiency Design Index – Technical File

EEOI Energy Efficiency Operational Indicator

GHG Greenhouse Gas

IMO International Maritime Organisation

MCR Maximum Continuous Rating

MEPC Marine Environmental Protection Committee

RO Recognised Organisation

SEEMP Ship Energy Efficiency Management Plan

SFC Specific Fuel Consumption

Tank Test Model towing tests, model self-propulsion tests and model propeller open water tests. Numerical tests may be accepted as equivalent to model tests.

Verifier Administration, or any person or organization duly authorized by

it, which conducts the survey and certification of the EEDI


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Appendix 3 – IMO background on energy efficiency regulation

The International Maritime Organisation (IMO), as the main regulatory body for shipping, has, in recent

years, devoted significant time and effort in order to regulate shipping energy efficiency and thereby

control the marine GHG emissions. For this purpose, IMO has developed a number of technical and

operational measures that include:

Energy Efficiency Design Index (EEDI);

Energy Efficiency Operational Index (EEOI);

Ship Energy Efficiency Management Plan (SEEMP).

The IMO has also been working on a number of Market-Based Measures (MBMs) for the marine industry.

The MBMs development is still ongoing.

The EEDI represents one of the major technical regulations for marine CO2 reduction and the IMO, under

the banner of the Marine Environmental Protection Committee (MEPC) and its associated Energy Efficiency

working group, has been finalising the regulations and guidelines for the EEDI with input from each of the

various flag states and other industry bodies. Figure 5 shows the MEPC’s activity timeline.

Figure 5: IMO timeline

Appendix 4 – List of parameters that affect the EEDI

The following are provided as a list of typical parameters which may have an effect on the ship’s EEDI.

Note: This is not an exhaustive list.

1. Ship type and design for ice

2. Type of fuel

3. Size and specific fuel consumption of main engines (or main propulsion motors)

4. Specific fuel consumption of auxiliary (power generation) engines

5. Hull form

6. Hull appendices

7. Propeller

8. Electric power requirement for non-propulsion systems

9. Capacity at summer load line

10. Draft and trim at summer load line

11. Energy saving devices as specified in EEDI Technical File

Resolution A.963 (23) “IMO policies and practices related to reduction of GHG emissions from ships”

MEPC Circ.471 “Energy Efficiency Operational Indicator”

Dec 2003

Jun 2005

Mar 2008

Jun

2008

GHG Working Group 1

Oct

2008

Feb

2009

Jul

2009

Mar 2010

Jun

2010

Sep

1997

Reg text

Jul 2011

EEDI & SEEMP Adopted

Sep 2010

Resolution 8 “CO2 emissions from ships”

GHG Working Group 2

MEPC Circ. 681 EEDI Calculation

MEPC Circ. 682 EEDI Verification MEPC Circ. 683 SEEMP MEPC Circ. 684 EEOI

Energy Efficiency Working Group

MEPC 40 MEPC 53 MEPC 57 MEPC 58 MEPC 59 MEPC 60 MEPC 61 MEPC 62

Mar

2012

Guidelines Adopted: MEPC.212(63) EEDI Calculation MEPC.213(63) SEEMP MEPC.214(63) EEDI Verification MEPC.215(63) EEDI Ref Lines

MEPC 63 MEPC 64

Finalisation

Oct

2012


14

Appendix 5 – EEDI reduction phases and cut-off limits

Ship type Size

Phase 0

1-Jan-13 to

31-Dec-14

Phase 1

1-Jan-15 to

31-Dec-19

Phase 2

1-Jan-20 to

31-Dec-24

Phase 3

1-Jan-25 onwards

Bulk carrier 20,000 DWT and above 0 10 20 30

10,000 – 20,000 DWT n/a 0-10* 0-20* 0-30*

Gas carrier 10,000 DWT and above 0 10 20 30

2,000 – 10,000 DWT n/a 0-10* 0-20* 0-30*

Tanker 20,000 DWT and above 0 10 20 30

4,000 – 20,000 DWT n/a 0-10* 0-20* 0-30*

Container ship 15,000 DWT and above 0 10 20 30

10,000 – 15,000 DWT n/a 0-10* 0-20* 0-30*

General cargo ship 15,000 DWT and above 0 10 15 30

3,000 – 15,000 DWT n/a 0-10* 0-15* 0-30*

Refrigerated cargo carrier

5,000 DWT and above 0 10 15 30

3,000 – 5,000 DWT n/a 0-10* 0-15* 0-30*

Combination carrier 20,000 DWT and above 0 10 20 30

4,000 – 20,000 DWT n/a 0-10* 0-20* 0-30*

Table 5: Reduction factors (X) for Required EEDI versus Attained EEDI (MARPOL Annex VI, Regulation 21)


15

Appendix 6 – Lloyd’s Register EEDI verification process

Figure 6: Lloyd’s Register EEDI verification and certification process

Shipyard or Shipowner

Initial data submission by the yard or owner to DSO

Preliminary data review by DSO to ensure all required

data is available

Contact the yard or owner for additional

or correct data

Issuance of Pre-verification Design Appraisal Document

(DAD) by the DSO to the yard

Verification of the agreed speed trial by the attending

surveyor during sea trial

Final data submission by the yard or owner inclusive of speed trial results to DSO

Preparation and issuance of the final verification DAD by the DSO to yard or owner


DSO

DSO/ LR Field Surveyor

LR Field Surveyor

DSO/ LR Field Surveyor

Pre

-Verifica

tion

Fin

al V

erifica

tion

Independent calculation of EEDI and completion of

checklists

Independent calculation of EEDI and completion of

checklists

DSO

DSO

Issuance of EEDI certificate by LR Surveyor to yard or owner LR Field Surveyor

Yard or owner requests LR attendance to witness model

tank tests for EEDI

Unless technical justification provided why tank test omitted

for a ship of same type as defined by IMO Guidelines



16

Appendix 7 – Review and witness points

Ref. Function Survey method

Reference document Documentation to be

made available to the verifier

Remarks

01 EEDI Technical File Review IMO Verification Guidelines Industry guidelines

3

Documents in table 2 of the industry guidelines

02 Limitation of power Review IMO Calculation Guidelines

Verification file of limitation technical means

Only If means of limitation are fitted

03 Electric Power Table Review

Appendix 2 to IMO Calculation Guidelines Appendix 2 to IMO Verification Guidelines

EPT EPT-EEDI form

Only if PAE is significantly different from the values computed using the formula in 2.5.6.1 or 2.5.6.2 of the IMO Calculation Guidelines

04 Calibration of tank test measuring equipment

Review & witness

Appendix 3 of industry guidelines

Calibration reports Check at random that measuring devices are well identified and that calibration reports are currently valid

05 Model tests – ship model

Review & witness


Ship lines plan & offsets table Ship model report

Checks described in appendix 4.1 of the industry guidelines

06 Model tests – propeller model

Review & witness


Propeller model report Checks described in appendix 4.2 of the industry guidelines

07

Model tests – Resistance test, Propulsion test, Propeller open water test

Review & witness


Tank tests report

Checks described in appendix 4.3 of the industry guidelines Note: propeller open water test is not needed if a stock propeller is used. In this case, the open water characteristics of the stock propeller are to be annexed to the tank tests report.

08 Model-ship extrapolation and correlation

Review

ITTC 7.5-02-03-01.4 1978 ITTC performance prediction method (rev.02 of 2011 or subsequent revision) Appendix 4 of industry guidelines Industry guidelines 15.7

Documents in table 2 of the industry guidelines

Check that the ship-model correlation is based on thrust identity with correlation factor according to method 1 ( CP – CN) or method 2 (ΔCFC - ΔwC) Check that the power-speed curves obtained for the EEDI condition and sea trial condition are obtained using the same calculation process with justified values of experience-based parameters

3 MEPC 64/ INF.22 or latest revision


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09 Numerical calculations replacing tank tests

Review ITTC 7.5-03-01-04 (latest revision) or equivalent

Report of calculations

10 Electrical machinery survey prior to sea trials

Witness Appendix 2 to IMO Verification Guidelines

Only if PAE is computed from EPT

11 Programme of sea trials

Review IMO Verification Guidelines

Programme of sea trials Check minimum number of measurement points (3) Check the EEDI condition in EPT (if PAE is computed from EPT)

12 Sea trials Witness ISO 19019:2005 or ITTC 7.5-04-01-01.1 (latest revision)

Check: - Propulsion power, particulars of the engines - Draught and trim - Sea conditions - Ship speed - Shaft power & rpm Check operation of means of limitations of engines or shaft power (if fitted) Check the power consumption of selected consumers included in sea trials condition EPT (if PAE is computed from EPT)

13 Sea trials – speed/power analysis

Review ISO 15016:2002 or ITTC 7.5-04-01-01.2

Sea trials report

Check that the displacement and trim of the ship in sea trial condition has been obtained with sufficient accuracy Check compliance with ISO 15016:2002 or or ITTC 7.5-04-01-01.2

14

Sea trials – adjustment from trial condition to EEDI condition

Review Industry guidelines 16.2 Power curves after sea trial

Check that the power curve estimated for EEDI condition is obtained by power adjustment

15 EEDI Technical File – revised after sea trials

Review IMO Verification Guidelines

Revised EEDI technical file

Check that the file has been updated according to sea trials results

Table 6: Summary of review and witness points (industry Guidelines, MEPC 64/INF..22)


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Appendix 8 – EEDI technical file contents

The EEDI technical file should contain the following information:

Ship details including principal dimension and particulars;

Ships’ main and auxiliary engines particulars;

Ship speed-power curve and a description of the source and calculation method of the speed-power curve;

Ship speed at 75% main engines’ MCR together with ship speed-power curve showing the corresponding speed and power;

Ship auxiliary power requirement and calculated values of auxiliary power PAE;

A general schematic diagram of propulsion system and auxiliary power supply and interlink between the two systems if any;

A list of ‚energy saving equipment‛ that has been included in EEDI calculation;

All the relevant correction factors and reasons for their choice or use;

Calculated attained EEDI of vessel including the specific numbers used as input to the equation.

A sample EEDI technical file is included within the industry guidelines (Appendix 2 of MEPC 64/INF.22).

For further information, contact your local Lloyd’s Register Group office.

www.lr.org/eedi

Lloyd's Register is a trading name of Lloyd's Register Group Limited and its subsidiaries.

For further details, please see our website www.lr.org/entities

Lloyd's Register Group Limited, its affiliates and subsidiaries and their respective officers,

employees or agents are, individually and collectively, referred to in this clause as the

'Lloyd's Register'. Lloyd's Register assumes no responsibility and shall not be liable to any

person for any loss, damage or expense caused by reliance on the information or advice

in this document or howsoever provided, unless that person has signed a contract with

the relevant Lloyd's Register entity for the provision of this information or advice and in

that case any responsibility or liability is exclusively on the terms and conditions set out in

that contract.

http://www.lr.org/entities