Splash247: Wärtsilä joins project to push hydrogen and cut methane slip on long routes

Published by Splash247

Wärtsilä has joined H4PERION, an EU Horizon Europe project led by the University of Vaasa, to fast‑track tech for zero‑carbon long‑distance shipping. The four‑year project runs until May 2030 and will develop and demonstrate engine and fuel solutions aimed at cutting greenhouse‑gas output from ships on longer voyages.

Wärtsilä’s role centres on a combustion concept that lets internal combustion engines run safely on a blend of hydrogen and biomethane, with the eventual goal of up to 100% hydrogen operation in open‑sea conditions. The company will also develop a catalyst system to slash methane slip — a key source of lifecycle emissions for methane‑based fuels.

Demonstrations will be dual: selected tech will be trialled onboard Wasaline’s ferry Aurora Botnia on the Finland‑Sweden route, while an identical full‑scale engine will run in the lab to mirror sea conditions. Data from both will feed a digital twin to speed optimisation and transfer lessons into future designs.

The project covers more than tech: training for crew and port staff, and safety work for handling sustainable fuels, are built into the programme. That practical angle is meant to smooth adoption if the trials prove successful.

H4PERION gathers 16 partners from seven countries across the maritime value chain — from ship design and engine makers to classification, yards, operators and research institutions. Partners named include WEGEMT, NTUA, TalTech, ABS, Deltamarin, the University of Oulu, Åbo Akademi, DLR, Meyer Werft and Wasaline, among others.

University of Vaasa R&D director Henri Karimäki says the project focuses on practical application and safety to push hydrogen forward as a zero‑carbon option. Wärtsilä’s Anders Öster framed the work as industry collaboration to accelerate net‑zero solutions for shipping.

If the trials cut methane slip and prove hydrogen operation workable in real conditions, H4PERION could add a usable path for long‑distance vessels that need higher energy density fuels than current battery tech can offer.