Tightening vessel carbon intensity indicator (CII) scores and looming 2025 FuelEU marine regulation are expected to raise biodiesel demand for bunkering, but non-competitive US prices should continue to weigh down on US bio-bunker demand.
Houston B30, a blend of used cooking methyl ester (Ucome) and very low-sulphur fuel oil (VLSFO), in September averaged at $821/t, a $45/t premium to B30 sold in Amsterdam-Rotterdam-Antwerp, and a $55/t premium to B24 sold in the west Mediterranean hub of Gibraltar and Algeciras (see chart). Houston B30 was also priced at $115/t and $61/t premium to B24 sold in Singapore and Guangzhou, China, respectively.
The price premium would continue to incentivize ship owners with global, ocean-going fleets to pick Asia first for their biodiesel bunker purchases, followed by northwest Europe and western Mediterranean. US demand for biodiesel for bunkering would continue to stagnate unless the US passes a legislation allowing Renewable Identification Number (RIN) credit under the US Renewable Fuel Standard (RFS) program be used by ocean-going vessels fueling with biodiesel in US ports. The legislation could level US' price playing field. Two bipartisan bills were put forward in support of renewable fuel for ocean-going vessels, one in the US Senate this year and one in the US House of Representatives last year, but they are currently dead in the water.
Conventional marine fuels are priced cheaper than biodiesel and green varieties of LNG, ammonia, methanol, and hydrogen. But tightening International Maritime Organization (IMO) and EU regulations are forcing the hand of ship operators to consider green fuels to avoid hefty penalties and having their vessels suspended from trading. Ship owners whose vessels are outfitted with LNG-burning engines, are poised to have the lowest marine fuel expense heading into 2025, as fossil LNG is currently ship owners' cheapest low-carbon fuel option. But retrofitting a vessel to burn LNG could range from $5-$35mn, depending on the size of the vessel. Biodiesel, a plug-and-play fuel that does not require a vessel retrofit, is the second cheapest low-carbon fuel option after fossil LNG.
IMO's CII regulation came into force in January 2023 and requires vessels over 5,000 gt to report their carbon intensity, which is then scored from A to E. The scoring levels are lowered yearly by about 2pc, so even a vessel with no change in CII could drop from C to D in one year. If a vessel receives a D score three years in a row or E score in the previous year, the vessel owner must submit a corrective actions plan. E scoring vessels could be prohibited from entering some ports' territorial waters, but this penalty is yet to be imposed on any E vessels. In 2023, the IMO reported that 40pc of the vessels scored A or B, 27pc scored C, 19pc scored D or E and 14pc were unresponsive.
The EU's FuelEU maritime regulation will require ship operators traveling in, out and within EU territorial waters to gradually reduce their greenhouse gas (GHG) intensity on a lifecycle basis, starting with a 2pc reduction in 2025, 6pc in 2030 and so on until getting to an 80pc drop, compared with 2020 base year levels. It imposes a penalty of €2,400/t ($2,629/t) of VLSFO equivalent energy for vessel fleets exceeding its GHG limits.
