Energy Efficiency Design Index – An Update. Dr Zabi Bazari Ship Energy Services Manager Lloyd’s Register, London, UK. email@example.com. RINA Lecture, 2 February 2012, London, UK. Content. Introduction EEDI formula and Attained EEDI Reference lines and Required EEDI EEDI verification
Energy Efficiency Design Index – An Update
Dr Zabi Bazari
Ship Energy Services Manager
Lloyd’s Register, London, UK.
RINA Lecture, 2 February 2012, London, UK.
Owners / Charterers
Ship owner / operator
IMO MEPC 62 in July 2011 agreed to a new Chapter 4 in MARPOL Annex VI entitled “Regulations on Energy Efficiency of Ships”.
This includes addition of new Regulations 19 to 23
Regulation 19 is on Application domain of Chapter 4
Regulations 20 is on “Attained EEDI”
Regulations 21 is on “Required EEDI”
Regulation 22 is on SEEMP
Regulation 23 is on “Technical co-operation and technology transfer”
There are quite a number of Guidelines in support of the above regulations.
Attained EEDI and Required EEDI
Aux Engine (s)
Innovative Energy Eff. Power Gen. Technologies
Innovative Energy Eff. Prop. Technologies
Boilers are excluded from EEDI!
Ice class factor
PME < 10000KW：
Reference lines are ship specific.
They are part of Regulation 22 (in equation form).
All new ship types, for inclusion in regulation, require a new reference line.
Attained EEDI ≤ Required EEDI
Implementation stages and reduction rates
* excluding ships with diesel-electric, turbine or hybrid propulsion
EEDI Verification process
Basic Design , Tank Test*,
Development of EEDI Technical File
Application for EEDI
Submission of EEDI Technical File
- EEDI Technical File
- additional information
Statement of Compliance
Submission of additional information
Start of ship construction
Application for EEDI
- sea trial condition
- ship speed
- revised EEDI Technical File
IEEC (International Energy efficiency Certificate)
Modification and Resubmission of EEDI Technical File
Delivery of ship
* To be conducted by a test organisation or a shipbuilder itself.
Verification of speed-power curve for Vref:
Tank test observation
Speed trial observation
Scaling method from “trial conditions” to “EEDI conditions”
Correction for environmental conditions.
Verification of “energy saving technologies”
Availability factors (feff)
Verification of various correction factors:
Weather factor (fw)
Design capacity factor (fi)
Cubic capacity factor (fc)
Guideline for calculation of EEDI
Guidelines for survey and verification of EEDI
Guidelines for minimum power of ship for safe operation.
Guidelines for validation of ship electric power table (EPT).
Guidelines for verification of innovative technologies
EEDI Reduction Methods
MEPC60/4/35 Japan, Norway, US
Average EEDI of current ships
(no effort for efficiency improvement)
(1) DWT enlargement
(2) Speed reduction
(3) Application of new technology
A: efficiency improvement
Efficiency improvement by design change
IMO GHG Future Work Plan
Progress in Inter-sessional WG meeting
(9-13 January 2012)
Impact of EEDI on Industry
More energy efficient ships and ship technologies
Slower speed ships
More use of alternative fuels
More expensive ships/marine transport (excluding fuel)
More optimised and complex designs with likely impacts on:
Likely modal shift of freight transport to land and air
EEDI will become commercially sensitive if used for:
Fuel efficiency-based chartering
Reward-based marine MBMs or financial incentives
The EEDI regulations are now in place and will come into force from 1st January 2013.
A number of guidelines are under development and will be finalised in 2012 in support of the above.
Verification of EEDI pauses a number of major issues.
There are a number of solutions to reduce EEDI including alternative fuels, alternative technologies and reduced ship speed.
The EEDI impacts on shipping economics, safety and transportation competitiveness are still being investigated.
Overall, it is anticipated that the EEDI will have a big impact on future of shipping industry.