At Gastech 2025, DNV granted an Approval in Principle (AiP) to HD Hyundai Heavy Industries (HD HHI) for their innovative designs of next-generation LNG carriers (LNGC) and Very Large Ethane Carriers (VLEC). These vessels, featuring 174K LNGCs and 100K VLECs, uniquely integrate a forward accommodation layout with tiltable rotor sails, marking a significant advancement in ship design. The LNGC will utilize four rotor sails from Norsepower, while the VLEC will incorporate two, both of which have been evaluated for compliance with DNV’s Wind-Assisted Propulsion Systems (WAPS) notation.
The forward accommodation concept aims to address challenges associated with onboard WAPS installations, such as COLREG compliance and visibility issues, while enhancing the efficiency of wind-assisted propulsion. This innovation is designed to improve fuel efficiency and reduce emissions, aligning with evolving environmental regulations. Hong-Ryeul Ryu, CTO & Executive Vice President at HHI, emphasized that these vessel concepts represent a flexible platform for meeting stringent environmental standards.
Vidar Dolonen, Regional Manager for Korea & Japan at DNV Maritime, noted the growing strength of WAPS technology and anticipated further advancements in vessel design tailored to specific ship types. This AiP awarded to HD HHI illustrates a collaborative effort to enhance energy efficiency and reduce emissions in the maritime sector, supporting the industry’s transition to sustainability. An AiP signifies an independent evaluation of a design concept, confirming its feasibility without significant technical barriers.
