Introduction to Hybrid Marine Propulsion Systems

Introduction to Hybrid Marine Propulsion Systems

An Introduction to Hybrid Marine Propulsion Systems

Unlike diesel propulsion systems and steam turbine propulsion systems, the hybrid marine propulsion system combines two or more sources of power such as diesel electric, battery, solar and more, into a single marine propulsion system. It can be used to propel a wide range of boats such as crew boats, ferries, workboats, yachts, self-propelled barges and more.

For example, a hybrid marine propulsion system with a combination of diesel electric and battery power sources allows the propulsion system to operate by drawing power from both sources individually or concurrently. This combination gives the propulsion system wide flexibility in operation efficiency optimisation and reduces fuel consumption significantly.

How Does The Hybrid Marine Propulsion System Work?

The hybrid marine propulsion system has the ability to optimise its performance in accordance with the different boat propulsion loading profiles.


For example, hybrid ferry uses battery as a main power source in harbor area and switching to diesel electric as a main power source during cruising.


Below are some examples of how the propulsion system is configured into different operation modes to cater to various loading profiles.


  1. Battery only mode
    To operate with the power source only from battery. This mode is suitable when the boat operates at low speed in harbor area and short-range operation.


  1. Diesel electric only mode
    Diesel Electric is selected as a main power source and this mode is suitable during cruising.


  1. Charging mode
    If the energy level in battery is not sufficient, the spare energy from diesel electric during the operation can be used to charge the battery.


  1. Boosting mode
    Both diesel electric & battery to provide power jointly to the marine propulsion system when maximized power to propulsion is required.

The flexibilities of the hybrid marine propulsion system provides maritime companies and crew with better and more efficient operating systems.


Benefits of The Hybrid Marine Propulsion System

Marine electrification has provided vessel operators with a plethora of new propulsion systems to explore, and switching to a hybrid marine propulsion system will not only help a company reduce its carbon footprint and contribute to climate change prevention, but will also provide numerous other benefits such as comfort and economic benefits.

The hybrid propulsion system provides a quieter, vibration-free and emission-free operating system, making the journey significantly more comfortable for everyone on board. The batteries and energy management system also reduces life cycle costs and lowers fuel consumption while providing companies with higher power output levels, better speed, and better performance.

As the cost of fossil fuels and pollution concerns continue to rise around the world, so will interest in the hybrid marine propulsion system, which will continue to see further development over the years. Do your part to reduce your carbon footprint by switching to an energy-efficient and cost-efficient propulsion system today, contact us for information on how to get started on marine electrification.