Sunday, October 1, 2023
Maritime Propulsion

July 17, 2023

Renewable Production Needed to Make Methanol a Viable Marine Fuel -LR

(Photo: Lloyd’s Register)

As technology feasibility continues to grow for methanol as a marine fuel, the main challenges for the industry’s adoption of it are investment and community readiness, according to a new report from Lloyd’s Register (LR).

The report, "Fuel for Thought: Methanol", found that technology for methanol usage as a marine fuel is feasible, available and mature in certain cases. Most engine makers will have dual fuel engine models in the near term, and there is significant evidence of interest from shipowners. By 2030 it is estimated that methanol could account for 20% of the vessel orderbook.

While community readiness is lower than technology readiness for methanol, the study shows that this is growing, with the industry drawing on the experience of transporting methanol as a cargo and its use as a fuel over the last decade. Safe bunkering guidance has been written and has laid the groundwork for future international safety requirements and class regulations are in place for newbuilding and retrofit designs to ensure existing safety requirements are met by methanol-powered vessels.

However, the biggest obstacles for the further development of methanol as a fuel relate to its pricing, availability and carbon accounting, the report has identified.

Due to the low production of green methanol and the current orderbook, availability could be a major issue for shipping with low supply driving up prices. Lack of methanol availability could also lead to questions as to whether methanol produced will be certified as green, which ensures that the greenhouse gas (GHG) emissions are accounted for as part of a full lifecycle assessment. Currently, the majority of methanol produced at scale is sourced from natural gas and is not renewable.

The study also identifies why the energy density of methanol in comparison to current diesel and fuel oils could also present a stumbling block for its widespread use as a marine fuel. Vessels will require up to two and half times the amount of methanol than fuel oil for a specific consumption.

Douglas Raitt, Lloyd’s Register’s Regional Advisory Services Manager for Asia, said, “Methanol’s time to shine as an alternative fuel candidate for the maritime energy transition is long overdue. Whilst there is no single fuel which will provide a ‘silver bullet’ for decarbonization, methanol has the potential to play a key role in a multi-fuel future as part of the maritime industry’s ambition to decarbonize.  The Fuel for Thought report shows how crucial the commercial scale up of green and blue methanol production is if the fuel is to be widely adopted by the maritime industry. We are, however, seeing positive signs with continued growth in technology and community readiness for methanol.”

The report is the first instalment in LR’s "Fuel for Thought" series which will feature reports on ammonia, biofuels, carbon capture technologies, nuclear power, hydrogen, battery and electric power and the transition of LNG.  The series will analyze the safety, production, economic drivers, and technology of each energy source.