ABS CERTIFIES MEDIUM VOLTAGE DC ELECTRIC PROPULSION SYSTEM

Aug 14, 2025 | Marine propulsion & machinery news

ABS issued a New Technology Qualification (NTQ) certificate to HD Korea Shipbuilding & Offshore Engineering (HD KSOE) and HD Hyundai Heavy Industries (HD HHI) for their next-generation electric propulsion solution: the Medium Voltage Direct Current (MVDC) power system for ships.

The Breakerless-MVDC Power System builds on HD Hyundai’s modular propulsion drive system and is believed to be the first to receive an ABS NTQ certificate, indicating the technology’s feasibility and maturity through a systematic evaluation program.

Patrick Ryan, ABS SVP and CTO said: “Collaboration is key to safely accelerating the technological progress that the maritime industry demands. We’re excited to deepen our relationship with HD KSOE and HD HHI, jointly exploring forward-thinking solutions that will shape and refine the next generation of vessels.”

Sanghyun Kim, HD KSOE SVP, added: “The MVDC power system, now certified as new technology by ABS for both commercial and naval vessels, represents our advanced capability in marine electrification and our success in overcoming existing technological barriers. We aim to lead the commercialisation of zero-carbon electric propulsion vessels.”

The NTQ is the latest in a long running programme of collaboration between ABS, HD HHI and HD KSOE and is part of an agreement announced in 2024 to explore medium-voltage direct current (MVDC) power systems on ships. The next milestones for the project team include the development of new ABS requirements for high voltage systems along with a new ABS notation.

Low voltage systems are addressed in the ABS Requirements for DC Power Distribution Systems for Marine and Offshore Applications. ABS New Technology Qualification services provide vendors and end-users with a defined approach to confirm new technologies perform intended functions in accordance with defined performance requirements.

Image: Sanghyun Kim, HD KSOE (left), with Patrick Ryan, ABS (source: ABS)

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