IMO (The International Maritime Organization is a specialized agency of the United Nations which is responsible for actions to be taken to increase safety and security of international shipping and to prevent pollution caused by vessels) launched the Energy Efficiency Design Index (EEDI). The EEDI is a one-time ship performance calculation, done by class on sea trial at the delivery of a new build. All the new ships (within the requirements) in OSM have this in their EEDI Technical file and they are EEDI compliant.
IMO will also launch an Energy Efficiency Existing Ship Index (EEXI) which is an “EEDI” for existing ships. It is similar to the EEDI, but it also applies to the older ships as well. EEXI will enter into force the 01.01.2023.
The Ship Energy Efficiency Management Plan (SEEMP) is a document that should be on board on all vessels. This document is an energy efficiency management plan with measures and guidance to running ships to be energy efficient. All ships under OSM Energy Efficiency Management possess the Ship Energy Efficiency Management Plan.
The EEOI is the total carbon emissions in a given time period per unit of revenue tonne-miles. EEOI is a calculation per voyage, saying something about the different voyages transport efficiency (including speed and cargo utilization). Now IMO has launched the new operational Carbon Intensity indicator (CII) which will enter into force first 01.01.2023, which is calculating the carbon intensity per DWT mile. Vessels will based on this, receive an annual rating, A-E, Where C or better is compliant. Three consecutive years with D-rating or one year with E will require measures to improve ship performance.
In addition, there will be updated requirements related to the Ship Energy Efficiency Management Plan (SEEMP) – “Enhanced SEEMP”. The updated SEEMP Guidelines are still not published from IMO but are expected before CII and EEXI enter into force. The Enhanced SEEMP will contain annual updates on CII-rating and measures in case of non-compliance.