FuelEU Maritime takes into account all fuels and energy sources used onboard. The fuels currently mentioned by the regulation are fossil fuels, biofuels, and renewable fuels of non-biological origin (RFNBO).
It will not be possible to comply with FuelEU Maritime through efficiency measures and reduced fuel consumption alone. Instead, new fuels and sources of energy must be used as of 2025. Vessels that continue to exclusively use conventional fuels (LSFO, ULSFO, MGO) for their energy needs will not comply with the FuelEU Maritime regulation and a penalty payment will be enforced on the vessel.
It goes without saying that fossil fuels score worst in the GHG intensity assessment. Blending of low-carbon fuels, especially biofuels (not produced from food or feed crops) and RFNBO, with fossil fuels will therefore be predominant, especially in the beginning.
As is well known, LNG is a fossil natural gas, so it is not climate neutral. Depending on the engine used, LNG can be compliant with initial FuelEU requirements. By adding liquid biomethane (LBM) or liquid e-methane (LEM) to LNG, the carbon footprint can be reduced without having to change the engine technology. Ultimately, vessels running on LNG could run 100% on LBM or LEM without any modifications.
Biofuels are set to become the main alternative fuel choice, replacing liquefied natural gas, according to a survey from 2023. Nearly 60% of around 500 respondents suggested they were considering using biofuels within the next five years, followed by 48% for wind and 48% for hydrogen-derived fuels, compared with 60% for LNG in 2021, according to the surveyed shipowners, charterers and financiers conducted by energy and transport law firm Watson Farley & Williams.
This trend is already clearly evident. The uptake of biofuel-blended marine fuels has increased in recent years, with volumes at the Port of Rotterdam reaching 790,000 tonnes in the past year, up from 301,000 tonnes in 2021, according to figures from the port authority.