
DNV Approves ABB Dynafin Electric Ship Propulsion | Mariner News
Classification society DNV has granted an Approval in Principle (AiP) to ABB’s groundbreaking Dynafin™ electric ship propulsion concept, marking a significant step towards sustainable maritime transport. This innovative electric ship propulsion system, developed by engineering giant ABB, is now validated as technically feasible, bringing it closer to commercial adoption across the shipping industry.
Revolutionary Whale-Inspired Design
Inspired by the efficient movement of a whale’s tail, the ABB Dynafin system redefines traditional marine propulsion. It utilizes an electric motor to power a horizontal wheel at the stern, equipped with vertical blades. Each blade is individually controlled by its own electric motor, eliminating the need for complex mechanical gearboxes. This unique design allows the system to simultaneously provide thrust and precise steering, enhancing vessel maneuverability and operational efficiency.
Driving Sustainable Maritime Operations
Early studies indicate that the ABB Dynafin system could reduce a ship’s energy consumption by approximately 22% compared to conventional shaft line propulsion. This substantial energy saving translates directly into lower fuel costs and a reduced carbon footprint, making it a compelling solution for greener shipping. The system is designed for a variety of vessels, including ferries, ro-ro ships, and offshore support vessels, and is fully compatible with future-proof power sources such as batteries and fuel cells.
Future of Electric Ship Propulsion
DNV’s AiP confirms the robust design and potential of ABB Dynafin to revolutionize marine technology. This crucial approval paves the way for further development and commercial integration of the system. ABB’s commitment to developing energy-efficient and eco-friendly solutions like Dynafin underscores the industry’s shift towards sustainable shipping practices, setting a new standard for environmental responsibility in maritime operations.



