The hybrid propulsion systems benefit of the best from two systems – the combination of electric propulsion and diesel drive. A Hybrid system enables ships with variable power requirements to run at high propeller efficiency. A large number of operational modes are available in the complex configurations, enabling the engines and propellers to run optimally over a wide power range.
A hybrid PTH/Boost mode is a configuration where the main propulsion is run by the diesel engine, and the system is designed for an electric propulsion for emergency mode or as a boost mode. In this configuration the installed electric power should meet the minimum requirement to bring the ship to shore. Other configurations can be optimised for electric propulsion as one of the main working conditions.
In such a system design, the vessel can utilize the power required for the specific operation in pure electric mode, or in diesel mechanical mode, or in a boost mode by engaging both systems. A hybrid system configuration is a fuel efficient and flexible system, with high redundancy.