Marine Link
Sunday, November 18, 2018

Advance Information of Berths in Ports Can Cut Cost and Emission

Maritime Activity Reports, Inc.

October 19, 2018

Image Source: Port of Rotterdam/TNO

Image Source: Port of Rotterdam/TNO

If seagoing vessels were better informed about the availability of berths and adapted their speed accordingly, substantial savings could be made in terms of fuel and CO2 emissions. This conclusion is based on a study that was recently commissioned by the Port of Rotterdam Authority and research institute TNO.

The study pointed out that if sea-going vessels are regularly kept informed – particularly during the last twelve hours before arrival – about exactly when their berth will become available, they will be able to adapt their sailing speed accordingly.

That usually means reducing their speed so that they arrive just in time. This in turn leads to less fuel consumption and therefore lower emissions of unwanted substances such as carbon dioxide, sulphur oxides and nitrous oxides. Significant savings are also possible thanks to shorter waiting times for ships in anchorage areas.

The results of the study were presented this week at the head office of the International Maritime Organisation (IMO) in London during a meeting of the IMO Intersessional working group on the reduction of Greenhouse Gas emissions from ships.

"In percentage terms, we’re talking about modest amounts," says Astrid Dispert, Technical Adviser of the GloMEEP Project (Global Maritime Energy Efficiency Partnerships). "But it’s exactly these types of measures that can make a huge difference in the short term and help reduce the carbon footprint of marine shipping. Added to that, they’d also have a beneficial effect on the wallets of the shipping companies."

TNO and the Port of Rotterdam Authority, which is a member of the ‘Global Industry Alliance to support low carbon shipping’, analysed all the movements of container ships sailing to Rotterdam port in 2017.

"By supplying more accurate information to ships, 4 percent – or 134,000 tonnes – of CO2 emissions can be saved every year," explains Jan Hulskotte, Senior Researcher at TNO. "To do this, container ships would have to adjust their sailing speed by an average of 5 percent, and still arrive at the planned arrival time." And even more savings could be made if ships were better informed more than twelve hours before arrival.

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