BrightMariner
MEO Class II: MEKG MEKM MEP MET SC&S SSEP 📊 Trends
Q3 (20 Marks) Environmental Protection
SSEP • Written Exam

With reference to Annex VI of MARPOL, what are the salient features of:

(a) EEDI (Energy efficiency design index) (5)

(b) EEOI (Energy Efficiency Operational Indicator) (5)

(c) SEEMP (Ship Energy Efficiency Management Plan) (5)

(d) CII (Carbon Intensity Indicator) (5)

Appeared In: Oct 2023

✓ Verified Model Answer (Text Solution)

Structured for DG Shipping MEO Class II examination scoring criteria.

Exam Ready

With reference to Annex VI of MARPOL, what are the salient features of:

Part (a)

EEDI (Energy Efficiency Design Index)

Part (b)

EEOI (Energy Efficiency Operational Indicator)

Part (c)

SEEMP (Ship Energy Efficiency Management Plan)

Part (d)

CII (Carbon Intensity Indicator)

Part (a)

EEDI: The Energy Efficiency Design Index is a technical measure of a ship's CO2 efficiency at the design stage, expressed in g CO2 per tonne-nautical mile (gCO2/(dwt.nm)). It is calculated from the ship's design (installed power, fuel consumption, capacity, speed) and must be below a "required EEDI" (a reference line with phased reduction targets) for new ships (from 2013, with tightening phases). It encourages the design of more energy-efficient ships (hull, machinery, waste-heat recovery, alternative fuels). The attained EEDI is verified and recorded in the International Energy Efficiency Certificate (IEEC).

Part (b)

EEOI: The Energy Efficiency Operational Indicator is an operational measure of the ship's actual CO2 efficiency during service, calculated as the ratio of CO2 emitted to the transport work (tonne-nautical miles) for a voyage/period. It is a monitoring tool (not mandatory as a limit) used to track the ship's operational efficiency and to identify improvement measures; it is used in the SEEMP to monitor performance.

Part (c)

SEEMP: The Ship Energy Efficiency Management Plan is a ship-specific plan (mandatory for all ships under MARPOL Annex VI Regulation 22) that establishes a methodology to improve the ship's energy efficiency. It includes: monitoring of fuel consumption and the EEOI/CII, and a set of operational measures (speed optimisation, hull/propeller cleaning, trim, machinery optimisation, waste-heat recovery, voyage planning, etc.). It is part of the ship's energy management and is verified/audited; the SEEMP Part III (under the CII regime) sets the required and attained CII and the improvement plan.

Part (d)

CII: The Carbon Intensity Indicator is an operational measure of the ship's annual carbon intensity, calculated as g CO2 per capacity-nautical mile (gCO2/(dwt.nm) or per gross ton-m for passenger ships), based on the fuel consumed and the distance/capacity in a year. From 1 January 2023, ships must calculate their attained CII annually and compare it with a "required CII" (a reference/improvement curve), obtaining a rating A to E (A best). Ships with a poor rating (E, or D for 3 consecutive years) must develop and implement a corrective action plan (in the SEEMP Part III) to improve. The CII is reported and verified through the IMO data collection system, driving operational efficiency and GHG reduction.

← Back to SSEP Question Bank Upload Recent Question Paper →