For FuelEU compliance, additional information must be reported alongside the EUMRV data. This includes:

Well-to-Tank Emission Factor: The emission factor representing the emissions associated with the production and transportation of the fuel.

Low Calorific Value (LCV): The amount of energy produced by the combustion of a specified quantity of fuel.

Onshore Power Supply (OPS) Details: Information about the electricity demand from the ship while using OPS, including the duration and the amount of electricity supplied.

These emission factor and LCV values are predefined in Annex II of the FEUM Regulation and Annex III of Directive (EU) 2018/2001. However, for biofuels and Renewable Fuels of Non-Biological Origin (RFNBOs), if predefined LCV values are not available, supplier-provided values should be used instead.