Biofuel (Marine)

Marine biofuels are derived from biomass and used as drop-in or blended replacements for fossil bunkers, most commonly FAME biodiesel and hydrotreated vegetable oil blended with VLSFO or MGO. Their lifecycle benefit depends entirely on the feedstock: waste-based oils score well, while crop-based fuels can carry land-use-change emissions that erode the saving. They need little or no engine modification, which makes them an immediate option, but sustainable feedstock supply limits how far they scale.