Berg Propulsion’s business manager for electrical system integration, Mr Dombrowe says developing hybrid propulsion systems for a new generation of tugboats, for harbour operations, coastal towage and offshore support, begins with the azimuth propellers.

He spoke to Riviera during the 27th ITS Convention, held 22 May in Dubai, UAE after his presentation explaining how to overcome electrical system integration challenges for tugs.

Mr Dombrowe says vessel designers need to gain a good understanding of the expected operating profile of these vessels and the thrusters required.

“If requirements are wrong, you will fail. If the equipment selection is wrong, you will fail,” he says during the interview.

Mr Dombrowe talks about various aspects of designing propulsion systems for different types of tugboat. “You need to start with the propeller as this sets the power requirements for the rest of the equipment.”

He also sets out why naval architects need to collaborate with propeller manufacturers from the beginning of the project, and how crew should be fully trained on the integrated power system.