Describe EEOI, EEDI and SEEMP

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Asked on June 14, 2021
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The Energy Efficiency Design Index (EEDI) was made mandatory for new ships and the Ship Energy Efficiency Management Plan (SEEMP) for all ships at MEPC 62 (July 2011) with the adoption of amendments to MARPOL Annex VI (resolution MEPC.203(62)), by Parties to MARPOL Annex VI. This was the first legally binding climate change treaty to be adopted since the Kyoto Protocol. The new MARPOL Annex VI Chapter 4: Energy Efficiency requirements Enter into force on 1 January 2013.

Energy Efficiency Operational Indicator (EEOI) -
• An efficiency indicator for all ships (new and existing) obtained from fuel consumption, voyage (miles) and cargo data (tonnes)
• In its most simple form the Energy Efficiency Operational Indicator is defined as the ratio of mass of CO2 (M) emitted per unit of transport work

The EEOI enables operators to measure the fuel efficiency of a ship in operation and to gauge the effect of any changes in operation, e.g. improved voyage planning and more frequent propeller cleaning, or the introduction of technical measures such as waste heat recovery systems or a new propeller.

Energy Efficiency Design Index (EEDI):
• It is an index quantifying the amount of carbon dioxide that a ship emits in relation to the goods transported.

• Indication of energy efficiency by CO2 emission (g) per cargo carry (ton mile) The actual EEDI of a vessel is called the “attained EEDI” and is calculated based on guidelines published by IMO. The result must be below the limit “required EEDI” prescribed in MARPOL.

• For existing vessels, the EEDI is in most cases irrelevant. It will become relevant only if a ship undergoes a major conversion that is so extensive that the ship is regarded by the Administration as a newly constructed ship.

• For new ships, a technical file must be created showing the attained EEDI and its calculation process.

• The EEDI and the technical file will be subject to verification by the flag administration.

Ship Energy Efficiency Management Plan (SEEMP):
The Ship Energy Efficiency Management Plan (SEEMP) is an operational measure that establishes a mechanism to improve the energy efficiency of a ship in a cost-effective manner.
• The SEEMP also provides an approach for shipping companies to manage ship and fleet efficiency performance over time using
• The SEEMP seeks to improve a ship’s energy efficiency through four steps; i. Planning, ii. Implementation, iii. Monitoring & measures, iv. Self-evaluation & improvement.
• All ships must have a SEEMP on board before the issuance of the first IEEC.
• All vessels of ≥ 400 GT, to be provided with a ship-specific SEEMP not later than the first intermediate or renewal survey (whichever is first) on or after 1 January 2013.

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Posted by marinetales
Answered on June 14, 2021