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Lloyd’s Register

Report: Feedstock availability, aviation demand challenge biofuel adoption in shipping


As a low-emission alternative fuel with low-capex investment and the potential to expand the operational lifespan of large portions of the world fleet, biofuels may have an important role to play in shipping’s decarbonization, but feedstock availability and demand competition from other transport sectors pose challenges that will need to be addressed for widespread adoption, according to Lloyd’s Register’s new “Fuel for Thought: Biofuel” report.

 


The report points to biofuels as a path to compliance with environmental regulations for ships for which retrofits to adopt other future fuels are not economically feasible.

 


As drop-in replacements for traditional fuels, biofuels require minimal changes to machinery and operations and offer greenhouse-gas (GHG) emissions savings of up to 84 percent compared to traditional fuels. 

 


The similarities between biofuels and their fossil equivalents, as well as the ability to blend biofuels with traditional fuels, makes adopting biofuels a comparatively straightforward process for shipowners compared to other alternative fuels.

 


Biofuels are generally compatible with existing onboard machinery and fuel tanks, use the same bunkering infrastructure as fossil equivalents, and their similarity to traditional bunkers means training requirements for crew are minimal compared to other future fuels.

 


The most established products suitable for shipping are fatty acid methyl ester (FAME, also known as biodiesel) and hydrotreated vegetable oil (HVO, also known as renewable diesel), and novel fuels continue to be developed.

 


Ship operators need to be alert to the individual characteristics of any given biofuel.

 


There are many types of biofuels produced through different processes using a wide range of feedstocks, variables that affect the GHG intensity of a fuel and that can raise operational considerations for machinery.

 


“Fuel for Thought: Biofuel” details industry standards for FAME and HVO, common considerations for engines and machinery and when using biofuels, and a process for undertaking trials of novel and untested biofuels in marine engines.

 


The report states that the main challenges for widespread deployment are availability and demand competition from other transport sectors—including aviation—and the investment in biofuel production capacity that will be needed to meet the growing demand from the transport sector.

 


The price of biodiesel blends is expected to rise alongside blending levels as feedstock prices are driven higher by demand, according to the report.

 


“Biofuels are unique among the future fuels for shipping as the vast majority of the world fleet is equipped with engines that can use them,” said Tim Wilson, the principal specialist for fuels, lubes and emissions for Lloyd’s Register. “As a drop-in replacement for fossil fuels, biofuels are an available and affordable method of reducing carbon emissions in the short term without large capital investment. The range of biofuel trials across ship segments and biofuel types reflect a strong level of interest from shipowners in their use onboard.”

 


“Fuel for Thought: Biofuel” gathers into one place the most relevant information on the use of biofuels in shipping, serving as a convenient reference for shipowners considering alternative fuel options for their fleets, and for maritime professionals seeking a deeper understanding of the zero-carbon transition.

 


The report combines expertise from Lloyd’s Register and other shipping knowledge leaders on topics including the characteristics and operational considerations for biofuels, regulatory drivers for biofuel adoption, technoeconomic considerations, fuel quality and availability, and biofuel trials in shipping.

 


The report builds on the success of earlier “Fuel for Thought” reports, where Lloyd’s Register is creating a one-stop repository for relevant information on all alternative fuels for the maritime industry.

 


The report, which can be accessed here, also contains information from Lloyd’s Register’s recently updated Zero Carbon Fuel Monitor, an insight-based assessment of the readiness of biofuels and other zero-carbon fuels for maritime applications.

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