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Eco Services
Energy Efficiency (EEDI-EEXI-CII)
WE ARE PART OF THE GLOBAL TEAM TOWARDS DECARBONISATION
We provide the international marine industry with objective advice, technical assistance, and impartial guidance to help improve the energy efficiency of ships and their carbon footprint for the fulfillment of safety and environmental related compliance.

The IMO’s demanding environmental goals have sparked several of the technological efforts in the search for appropriate solutions to help the maritime industry meet the challenge.
IMOs ‘Greenhouse Gas Strategy to 2050, calls for reducing carbon intensity footprint by 40% up to 2030 and by 50% overall (70 percent intensity) by 2050.
ENERGY EFFICIENCY DESIGN INDEX (EEDI) FOR NEW SHIPS
The EEDI for new ships is the most important technical measure and aims to promote the use of equipment and engines that are more energy efficient (less polluting). The EEDI mandates a minimum level of energy efficiency per capacity mile (e.g., ton mile) for various ship types and sizes. As of January 1, 2013, following an initial two-year phase zero, new ship designs must meet the ship type’s reference level.
The EEDI is a non-prescriptive, performance-based mechanism that leaves the choice of technologies to use in a specific ship design to the industry. The EEDI provides a specific figure for an individual ship design, expressed in grams of carbon dioxide (CO2) per ship’s capacity-mile (the smaller the EEDI the more energy efficient ship design) and is calculated by a formula based on the technical design parameters for a given ship.
The EEDI regulation applies to ships of 400 gross tons or more engaged in international voyages (with the exception of platforms, drilling sites, and non-propelled vessels such as barges). A ship whose compliance with the regulation is verified will receive an International Energy Efficiency (IEE) Certificate.
EEXI ( ENERGY EFFICIENCY INDEX FOR EXISTING SHIPS) & CII (CARBON INTENSITY INDICATOR)
EEXI & CII calculate the annual emissions of ships after January 2023. Under such rule’s implementation, ship owners and operators are driven to maximize vessel efficiency through technological advancements in pursuit of appropriate regulatory compliance and market-based performance.
The new measures require all ships to calculate their Energy Efficiency Existing Ship Index (EEXI) following technical means to improve their energy efficiency and to establish their annual operational carbon intensity indicator (CII) and CII rating. Carbon intensity links the GHG emissions to the amount of cargo carried over distance travelled.
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OPERATIONAL CARBON INTENSITY INDICATOR (CII) AND CII RATING
The CII determines the annual reduction factor needed to ensure continuous improvement of the ship’s operational carbon intensity within a specific rating level.
The actual annual operational CII achieved (attained annual operational CII) is required to be documented and verified against the required annual operational CII, to enable the operational carbon intensity rating to be determined.
The rating is given on a scale – operational carbon intensity rating A, B, C, D or E – indicating a major superior, minor superior, moderate, minor inferior, or inferior performance level. The performance level would be recorded in the ship’s Ship Energy Efficiency Management Plan (SEEMP).
THE 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 and encourages operators at each stage of the plan to consider new technologies and practices when seeking to optimize the performance of their ships.
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 or more frequent propeller cleaning, or introduction of technical measures such as waste heat recovery systems or a new propeller.
How we assist – Energy Efficiency Services for ships
Under MARPOL Annex VI, technical and operational measures were adopted at the IMO level aiming to reduce carbon intensity of international shipping, by introducing mandatory goal based technical and operational measures to reduce carbon intensity of international shipping.
INSB Class offers Energy Efficiency services relevant to the assessment, approval and certification of:
EEDI RELATED SERVICES
- Assessment and verification of Ship’s Energy Efficiency Design Index (EEDI).
- Review & Approval of Ship Energy Efficiency Management Plan (SEEMP).
- Survey for the issuance of the International Ship Energy Efficiency Certificate.
EEXI & CII RELATED SERVICES
- Assessment and verification of Ship’s Energy Efficiency Existing Ship Index (EEXI), applicable from the first annual, intermediate or renewal IAPP survey after 1 January 2023.
- Review & Approval of the enhanced Ship’s Energy Efficiency Management Plan (SEEMP III), whereby an approved SEEMP needs to be kept onboard from 1 January 2023.
- Assessment and determination of ship’s e operational Carbon Intensity Indicator (CII) rating scheme, from 1 January 2023 onwards.