The Maritime and Port Authority of Singapore (MPA) issued an Expression of Interest (EOI) on 10 July 2023 to invite interested parties to submit proposals to design and promote adoption of full-electric harbour craft (e-HC) in Singapore, according to MPA's release.
The Ministry of Transport announced at Committee of Supply debate this year that the harbour craft, pleasure craft and tug boat sectors would be required to achieve net zero emissions by 2050 in line with Singapore’s national net zero ambitions. To support this goal, operators with new harbour craft plans should inform the MPA about their plans from January 2027, so that the designs can be adjusted if required. From 2030, all new harbour craft operating in the Port of Singapore will have to be fully electric, be capable of using B100 biofuel, or be compatible with net zero fuels such as hydrogen.
To promote wider and early adoption of e-HC, MPA intends to support harbour craft companies by providing e-HC engineering reference designs and safety standards to adopt, as well as helping the companies access more attractive financing solutions and lower the cost of production through aggregating overall demand for e-HC in the sector.
The EOI will allow MPA to assess and validate proposals for the best-in-class e-HC reference designs. These would include design standards and guidelines for vessel structure that is optimised for efficiency, integrated battery management and energy storage systems, and the essential safety systems that include emergency back-up, cybersecurity and firefighting capabilities. These reference designs will complement the e-HC engineering knowledge and local capabilities developed by the joint industry-research consortiums supported by MPA and the Singapore Maritime Institute as well as other industry-led collaborations on research and development of e-HC for various use cases.
To facilitate the development of green financing models for the development of the e-HC, the EOI will also invite proposals to demonstrate the commercial viability of various business models based on an aggregated harbour craft fleet to meet the demand at the Port of Singapore. An aggregated fleet aims to improve utilisation rates, encouraging more companies, especially those with smaller fleet size, to electrify their harbour craft, while providing efficient and responsive services to meet the needs of ships calling into Singapore.
There are currently about 1600 harbour craft performing a range of marine services within the Port of Singapore, including the delivery of ship supplies and bunker, as well as towage and launch services. The suitability of electrification as a decarbonisation pathway depends on several factors, including the operating profile and energy requirements of the harbour craft.
For a start, the EOI will focus on the design and support for transition to electrification of the smaller harbour craft. These are generally in the range of 20 – 40 tonnes in gross tonnage, have an overall length of 10 – 20 metres, and a combined shaft power ranging from 200 – 400 kW. There are currently about 400 of these harbour craft deployed in the Port of Singapore.