Question

What can ships do to prevent global warming?

Answer 1

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THere are 5 ways

1.Operational measures including slow steaming (ships operate at slow speeds, reducing their fuel consumption considerably) and route optimisation.

2.Incremental measures (mostly short term) which would cause the sector limited disruption, but are able to reduce emissions per vessel by as much as 5%. These include improving hull design, propeller optimisation and waste heat recovery.

3.Renewable energy – in particular the use of wind-assist, or wind power, for propulsion. Examples include the work that Cargill and Wessels have done trialling kite systems, and the experience of Enercon and Norsepower who both installed different rotor designs on ships.

4.Energy storage through the use of batteries and cold ironing (the process of providing shoreside electrical power to a ship at berth while its main and auxiliary engines are turned off). This would enable the sector to decarbonise by allowing it to run off electricity produced via a low carbon grid.

5.Fuel switch to lower carbon fuels for propulsion.