The “SOHAR MAX” – with a carrying capacity of 400,000 tons – is equipped with five giant rotor sails, each 35 meters tall and 5 meters in diameter, developed in collaboration with global leader Vale and Anemoi Marine Technologies.
Source: Oman's Asyad Group introduces wind-powered mega vessel - Offshore Energy
Yes it will, but how much depends on the KG and weight of the rotor sails.
I have NOT seen any weight figures, but assume it varies for each type?
PS> There will also be a heeling factor, depending on wind force and relative direction. (probably not much on a ship of that size, though)
Bringing the discussion to this thread, where it belongs.
There are several types of modern wind assisted propulsion available and in use and new solutions are under development.
Here is a comparison by Kongsberg of the different types presently available:
(Date of issue is not stated)
PS> The purpose of all is to reduces fuel consumption, thus GHG emission and to save money.
Here is one that will use only wind power on the Atlantic crossings:
Assuming that these vessels will have refrigerated and temperature/humidity controlled cargo spaces, they will need some form of power supply for the crossings and for propulsion to manoeuvre in and out of ports etc.
PS> Nothing said about the source of such power, nor about what these ships will carry on the return voyage (if anything).
The quote that a container vessel will use 19% less fuel on a Transatlantic voyage will be nullified by the loss of cargo capacity. For smaller vessels I see methanol or similar being the only alternative. For the 24,000 TEU it has to be nuclear.
The first shipment of frozen meat from New Zealand to Britain was under sail in the 1882 in the 3 mast barque DUNEDIN. She loaded 300 tonnes of coal for the refrigeration plant to keep the 11,000 carcasses frozen. The voyage took over 90 days .