Outlines of the regulation
Amendments to MARPOL Annex VI that makes the regulation of Energy Efficiency Existing Ship Index (EEXI) mandatory were adopted at 76th session of the Marine Environment Protection Committee (MEPC 76) held in June 2021.
EEXI regulation applies to ships of 400 gross tonnage and above, and whose ship type falls into one or more of the categories* in regulation 2 of MARPOL Annex VI. Ships to which the regulation applies will be required to calculate EEXI value of each individual ship (i.e. attained EEXI) and the value shall be equal to or less than the allowable maximum value (i.e. required EEXI). Furthermore, if attained EEXI cannot satisfy the required EEXI, the ship should implement any countermeasures, such as shaft/engine power limitation, retrofitting energy saving devices, etc.
The certification of EEXI (i.e. revising International Energy Efficiency (IEE) Certificate) will take place at the first annual, intermediate or renewal survey of the International Air Pollution Prevention (IAPP) Certificate on or after 1st January 2023 for ships delivered before 1st January 2023, or at the initial survey of IEE Certificate for ships delivered on or after 1st January 2023. The verification of EEXI shall be completed by the date of the survey.
*Bulk carrier, Gas carrier, Tanker, Containership, General cargo ship, Refrigerated cargo carrier, Combination carrier, Ro-ro cargo ship, Ro-ro cargo ship (vehicle carrier), Ro-ro passenger ship, LNG carrier having conventional propulsion,
and cruise passenger ship and LNG carrier having non-conventional propulsion (i.e. diesel-electric propulsion, turbine propulsion, hybrid propulsion systems, etc.)
Regulation and the relevant guidelines
Amendments to MARPOL Annex VI and EEXI relevant guidelines can be downloaded from the links below.
1. AMENDMENTS TO MARPOL ANNEX VI
|AMENDMENTS TO MARPOL ANNEX VI||Original|
2. IMO guidelines
|2021 GUIDELINES ON THE METHOD OF CALCULATION OF THE ATTAINED ENERGY EFFICIENCY EXISTING SHIP INDEX (EEXI)||Original|
|2021 GUIDELINES ON SURVEY AND CERTIFICATION OF THE ATTAINED ENERGY EFFICIENCY EXISTING SHIP INDEX (EEXI)||Original|
|2021 GUIDELINES ON THE SHAFT / ENGINE POWER LIMITATION SYSTEM TO COMPLY WITH THE EEXI REQUIREMENTS AND USE OF A POWER RESERVE||Original|
EEXI simple assessment service
EEDI Section of Hull Department provides the simple calculations of attained EEXI value and estimations of
required EPL power in accordance with EEXI calculation guidelines as per requests from customers.
Note: This assessment is just for reference and not related to the actual EEXI verification.
Furthermore,we developed “EEXI Simplified Planner” for Bulk carriers, Gas carrier, Tanker, Containership, and Ro-ro
cargo ship (vehicle carrier). The assessment tool can be downloaded from here.
- The assessment result obtained from this tool is also just for reference and not related to the actual EEXI verification.
- The attained EEXI is calculated using the “default value of SFC (i.e. SFCME,app: 190g/kWh, SFCAE,app: 215g/kWh)” and
“ ship speed calculated by the simple formula (i.e. Vref,app)” specified in EEXI Calculation Guidelines.
- The required value of EPL (Engine Power Limitation) in order to comply with EEXI requirement is estimated based on the
calculated attained EEXI.
EEDI Section of Hull Department: Outlines of EEXI Regulation
Date: 29 May 2021
The presentation materials can be downloaded from here.
Outline of the presentation: Introduction about the background of EEXI regulation, calculation method of attained EEXI and required EEXI, and Engine Power Limitation and other methods for improving attained EEXI to achieve the requirement.
Address and contact details
Please contact to the following address for any question about EEXI regulation.
NIPPON KAIJI KYOKAI
3-3, Kioi-cho, Chiyoda-ku, Tokyo 102-0094
EEDI Section of Hull Department
TEL : +81-3-5226-2018, FAX : +81-3-5226-2019