Hydrogen hydrofoils Vital Spark V3 and Experiment of Leith H2 showcased at the Amsterdam Electric and Hybrid Marine Expo Europe 2025 boat show, incorporating integrated hybrid hydrogen and electric power and solid state hydrogen storage.

PlusZero uses its hydrogen drive-chain integration expertise to bring together leading hydrogen technology suppliers and research partners to demonstrate the scalable means to decarbonise marine energy and transport, exploring opportunities for international expansion in ports and marinas across Europe starting with Monaco and Amsterdam.

Vital Spark V3, a 3-point hydrofoil powered by PlusZero’s zero-emissions hydrogen internal combustion engine (HICE) along with EPTechnologies’ advanced battery system, uses Aich2 & ImaGEN Inc’s modular solid state hydrogen storage unit, ePropulsion’s zero-emission electric pod drive, and is crewed by the University of Glasgow’s UG Hydrogen Fuel Racing team. The vessel uses green hydrogen produced at Edinburgh’s Port of Leith in collaboration with Forth Ports and water re-use pioneer Waterwhelm as part of the ongoing Innovate UK-funded and UK Department of Transport-backed Clean Maritime Demonstration Competition (CMDC). The groundbreaking drivetrain deployed in Vital Spark V3 is the same advanced PlusZero HICE and battery hybrid technology used in the CMDC to provide clean shore power to Forth Ports and Targe Towing’s tugboats, offering a carbon- and pollution-free alternative to diesel generators. This green hydrogen will also fuel a hydrogen-powered workboat undergoing testing by Forth Ports.

Experiment of Leith H2 – a Zippa trimaran stealth boat powered by a hydrogen fuel cell provided by TCP and ePropulsion’s electric outboard motor with solid state hydrogen stored in swappable cannisters, is crewed by students from Heriot-Watt University’s iNetZ+ research institute. This system offers higher energy density and safety compared to traditional lithium batteries, operating at low pressures (less than 1 bar) to minimise fire risks and eliminate energy losses over time. The project aims to demonstrate the practicality of hydride technology while challenging conventional hydrogen solutions, paving the way for safer, greener, and more efficient energy use in transportation.

Both vessels are examples of ergonomic boat designs by the celebrated British designer Paul Sparrow.

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