OPTIMIZE YIELDS

Above, the comparison of consumption gain according to the speed between the coupled alternator mode (AA) and the new ECO mode.

The new ECO mode offers a constant and high gain; it enables fuel savings of over 55%.

On the other hand, concerning the AA mode, it should be noted that the gain in consumption peaks at 42% and decreases in the low speed range.

Our approach for more than 10 years is to provide efficient solutions using the technology currently used on ships.

Efficiency is the result of a dual optimization of the propulsion system, which significantly reduces fuel consumption per mile and GHG emissions:

- technical improvement: increase in propeller efficiency.

- functional improvement: reduction in the number of main engines in service.

Keeping the original technology makes it possible to limit the modifications to be made to the vessel as much as possible and to be able to improve the range of use of the existing system.

Combined double optimization generates results commensurate with current challenges   :

At constant arrival time: between 15% and 20%   of economy.

At delayed arrival time: up to more than 55%   of economy.
 

In terms of regulations, this corresponds to achieving:

Quickly the objectives set for the period 2023-2025   (30% reduction in GHGs) thanks to the "2&3 ECO" mode while maintaining a competitive speed: loss of speed by   10% compared to the maximum speed.

Easily set goals for the period 2025-2030   (40% reduction in GHGs) thanks to "2 ECO" mode, while maintaining high speed: loss of speed by   15% compared to the maximum speed.

Correctly set goals for the period 2040-2050 (reduction of more than 50% of GHGs) thanks to the "1 ECO" mode, while maintaining an acceptable speed: loss of speed of approximately 35%   compared to the maximum speed.

For the goals after 2050 , it is quite possible to combine the ECO mode with other promising technologies such as gas propulsion and thus achieve  a reduction in GHGs of more than 70%  . 

Concretely, this represents since 2012, on the first vessel (170m / 16,000 kW) equipped with ECO mode:

15,000 tons fuel savings.

An hourly saving of 0.45 ton/h   (proportional to the power of the ship).

More than  600 crossings  Marseille - Ajaccio without using fuel.

A non-emission of 45.000 tons of CO2, equivalent to 300 million km travelled in a thermal car (7.500 times around the Earth).

The device as well as the process are protected by the European patent n°EP3078584.