Hybrid Hydrogen-Battery Retrofit Powers UK Vessel Toward Maritime Decarbonization

AceOn Group and a UK-based consortium have hit a major milestone, successfully wrapping up a real-world trial of a hybrid hydrogen and battery retrofit propulsion system aboard Newcastle University’s research vessel, the Princess Royal. The test—run in May 2025—took place out on the North Sea and River Tyne, and it’s a big step forward for zero-emission technology, especially for vessels supporting offshore wind farm operations.

Smart tech for cleaner seas: hydrogen and battery power onboard

Backed by £4.6 million in funding—channeled through the UK Department for Transport’s UK SHORE programme and distributed by Innovate UK’s CMDC3 initiative—the RESTORE project is all about making low-emission shipping reality. The system combines traditional battery power with a hydrogen fuel cell generator acting as a range extender. It’s a practical, plug-in solution built to retrofit existing vessels, cutting emissions without having to start from scratch. Need to confirm funding details? Innovate UK can help.

Teaming up for impact: innovation through collaboration

Led by AceOn Group, this project has brought together some serious brainpower. Experts from Newcastle University’s marine engineering team, Engas Global, and ORE Catapult have pooled their skills and insights, pushing forward a strong case for sustainable energy in shipping. Their partnership is a shining example of how real collaboration can drive meaningful progress in industrial decarbonization.

Clearing the way for hydrogen-powered vessels

But this isn’t just about proving a concept—it’s about showing what’s next. With this successful trial under their belts, the team has laid the groundwork for scaling up hydrogen fuel cells in the maritime world. Instead of scrapping ships, this retrofit route means current fleets can evolve—a more cost-effective and sustainable move. It’s a big win for the push toward a greener future and a sign that the UK is serious about taking the lead in hydrogen infrastructure for shipping.