Menu

Ireland's sailing, boating & maritime magazine

RBC Brewin Dolphin proudly supporting Afloat and Irish Boating

EU-Funded Project to Develop Solutions for Zero-Carbon Long-Distance Shipping

15th May 2026
Wärtsilä will contribute to an EU-funded project, H4PERION, to develop a combustion concept that enables engines to operate safely and efficiently on a blend of hydrogen and biomethane, with the aim of achieving up to 100% hydrogen operation in open-sea conditions.
Wärtsilä will contribute to an EU-funded project, H4PERION, to develop a combustion concept that enables engines to operate safely and efficiently on a blend of hydrogen and biomethane, with the aim of achieving up to 100% hydrogen operation in open-sea conditions. Credit: Wärtsilä Corporation

Marine technology group Wärtsilä has joined an EU-funded Horizon Europe project led by the University of Vaasa in Finland to help accelerate the transition to zero-carbon long-distance shipping.

The four-year project H4PERION (Hydrogen FOR Performance Enhancement and Reliable Ice OperatioN) will develop and demonstrate solutions to improve engine efficiency and significantly reduce greenhouse gas emissions.

Wärtsilä will contribute by developing a combustion concept that enables internal combustion engines to operate safely and efficiently on a blend of hydrogen and biomethane, with the aim of achieving up to 100% hydrogen operation in open-sea conditions.

“Several low‑carbon fuels are being explored within the industry, and hydrogen is considered one potential zero‑carbon option. By focusing on its practical application and safety in maritime contexts, the H4PERION project aims to advance innovation and set new standards for the industry. Collaboration across Europe will be key in achieving these outcomes,” says University of Vaasa’s Research and Development Director, Henri Karimäki.

In addition, Wärtsilä will develop a catalyst system to reduce methane slip and other emissions, supporting a lower overall lifecycle carbon footprint.

Wärtsilä will demonstrate selected technologies onboard the Scandinavian ferry ‘Aurora Botnia’, which as Afloat reported, Swedish company Stena Line acquired from Wasaline. The involvement of the Sweden-Finland ferry is to focus on reducing the vessel’s emissions - particularly methane slip. The project also includes training programmes for crew and port workers and activities to support the safe use of sustainable fuels.

The H4PERION project will run for four years, until the end of May 2030,during this time, sea trials will be carried out on Aurora Botnia, which was purpose-built in 2021 for the Umeå - Vaasa route across the Gulf of Botnia. In parallel, an identical full-scale engine will be tested in a laboratory environment to mirror real sailing conditions and further optimise performance. Data from both demonstrations will feed into a digital twin model to support long-term learning and future design work.

“Achieving net zero emissions in shipping is a journey we must take together. It is only through close cross-industry collaboration and shared determination that we will further accelerate progress towards zero-carbon solutions for maritime,” says Anders Öster, General Manager, Research Coordination & Funding, Wärtsilä Marine.

H4PERION brings together 16 partners from seven European countries, representing the maritime value chain from ship design and engine development to vessel operation, training, safety and academic research.

In addition to the University of Vaasa and Wärtsilä, project partners include WEGEMT, NTUA, TalTech, the American Bureau of Shipping, Deltamarin, the University of Oulu, Åbo Akademi University, Meric Wave Computanics, DLR, BALance Technology Consulting, MEYER WERFT and Wasaline.

Their combined expertise will help ensure that the technologies developed in the project can be brought into practical use quickly and safely.

Published in Ports & Shipping
Jehan Ashmore

About The Author

Jehan Ashmore

Email The Author

Jehan Ashmore is a marine correspondent, researcher and photographer, specialising in Irish ports, shipping and the ferry sector serving the UK and directly to mainland Europe. Jehan also occasionally writes a column, 'Maritime' Dalkey for the (Dalkey Community Council Newsletter) in addition to contributing to UK marine periodicals. 

We've got a favour to ask

More people are reading Afloat.ie than ever thanks to the power of the internet but we're in stormy seas because advertising revenues across the media are falling fast. Unlike many news sites, we haven't put up a paywall because we want to keep our marine journalism open.

Afloat.ie is Ireland's only full-time marine journalism team and it takes time, money and hard work to produce our content.

So you can see why we need to ask for your help.

If everyone chipped in, we can enhance our coverage and our future would be more secure. You can help us through a small donation. Thank you.

Direct Donation to Afloat button