What is attained and required EEDI?
The attained EEDI is the actual calculated and verified EEDI value for an individual ship based on the data in the EEDI technical file. It shall be calculated for all ships of 400 GT and above. The attained EEDi must be below the ‘Required EEDI’ limit prescribed in MARPOL.
What is EEXI calculation?
In principle, the EEXI describes the CO2 emissions per cargo ton and mile. It determines the standardized CO2 emissions related to installed engine power, transport capacity and ship speed. The EEXI is a design index, not an operational index.
What are the EEDI and EEOI measures for?
The difference between these two terms is that EEDI is the measure of energy efficiency of the ship by design and EEOI is the measure of how efficiently the ships are operated. EEDI is how well (energy efficient) a ship is built. EEOI is the measure of how well (energy efficient) a ship is operated.
What is EEDI reference line?
EEDI reference line: “The EEDI Reference line (EEDI Baseline) for each type of ship is defined as a curve representing an average index value fitted on a set of individual index values for a defined group of ships”.
What is EEDI certificate?
MEPC. 214(63) guidelines on survey and certification of the energy efficiency design index (EEDI) The Energy Efficiency Design Index (EEDI) is required only for ship new buildings. The term “new ship” is well defined as a ship …
What is the difference between EEDI and EEXI?
EEXI is the sister to EEDI, Energy Efficiency Design Index, which has been in force since 2013. These indexes measure the same in practice; however, EEDI is applied to new ships while EEXI applies to existing vessels.
WHO calculates EEXI?
Tomas Barrett. DNV has launched the EEXI Calculator – a digital tool to support customers in ensuring their compliance with the upcoming Energy Efficiency Existing Ship Index (EEXI). The regulation is expected to be adopted at this week’s 76th meeting of the Marine Environment Protection Committee (MEPC 76).
What is the unit of EEOI?
The Energy Efficiency Operational Indicator (EEOI) was developed by the IMO in order to allow ships to monitor the carbon emissions of their shipping activities. The EEOI is the total carbon emissions in a given time period per unit of revenue tonne-miles.
What is ECA and SECA in maritime?
Emission Control Areas (ECAs), or Sulfur Emission Control Areas (SECAs), are sea areas in which stricter controls were established to minimize airborne emissions from ships as defined by Annex VI of the 1997 MARPOL Protocol.
Is EEDI mandatory?
For most newbuilds, the EEDI is mandatory, i.e. they need a class-approved certificate on EEDI. If a newbuild requires an EEDI or not depends on certain parameters like the ship type, installed engine power, keel laying date and a lot more.
How can I reduce my EEDI?
3.1. The EEDI thresholds can be met by reducing the hull resistance, which reduces the power required for propulsion. One way to achieve this is to increase hull length, beam or both to reduce the block coefficient, enabling a slenderer design, keeping the vessel’s cargo-carrying capacity unchanged.