MESD study finds existing Singapore harbour craft ready for B100 bio bunker fuel adoption

Singapore’s Maritime Energy & Sustainable Development Centre of Excellence (MESD) on Wednesday (5 August) said the findings of its latest study indicate that existing large harbour craft in Singapore are ready for the adoption of B100 biodiesel, provided appropriate fuel handling, storage and additive practices are in place.

The findings were published in MESD’s public report, Study on the Readiness of Existing Large Harbour Craft for B100 Biodiesel in Singapore.

“Overall, the results demonstrate the qualified readiness of existing large harbour craft in Singapore for B100 adoption, provided that appropriate fuel-handling, storage and additive practices are implemented,” MESD said in a social media post. 

“This represents an important step towards supporting the wider adoption of sustainable marine fuels and advancing Singapore’s maritime decarbonisation journey.”

The study evaluated fuel storage stability, engine performance, emissions and operational readiness through controlled laboratory testing and sea trials involving a tugboat and a bunker tanker.

MESD said the findings are highly encouraging, which include:

• Stable engine performance was maintained throughout the 200-hour sea trials, with no significant power loss, abnormal fuel-consumption trends or critical operational disruptions.
• Antioxidant additives improved oxidation stability and helped reduce the risk of fuel degradation during storage.
• B100 achieved brake thermal efficiency comparable to diesel, while producing lower carbon monoxide and particulate matter emissions, with a modest increase in nitrogen oxide emissions.

Led by the MESD, the study was conducted in collaboration with KST Maritime Pte Ltd, V-Bunkers Tankers, Alpha biofuels, Aderco, Maritec Naias and IHI Power Systems Co Ltd.

The Maritime and Port Authority of Singapore (MPA)​ and the ​Singapore Maritime Institute (SMI)​ also contributed to the study. 

MESD added that further research on long-term engine endurance, fuel stability and material compatibility is ongoing under its FAME 1000 project, with a related public report expected to be released later this year.

Note: The report can be accessed here.

Photo credit: Maritime Energy & Sustainable Development Centre of Excellence
Published: 7 August, 2026