7. Conclusion

This article attempts to show the scope and complexity of technological innovations, in terms of systems, components and materials, applicable to the on-board energy-propulsion sector.

On-board electrical components have to comply with numerous standards and maritime environmental constraints that influence their design.

At system level, the control of the marine propeller and its interaction with on-board electrical generation is a matter of well-mastered techniques. The composition and control of hybrid mechanical-electric propulsion systems depend above all on the ship's operating program.

The need to optimize energy consumption and reduce emissions is already driving naval architects and propulsion-energy system designers towards resilient, compact and highly efficient electrical solutions.