Johnson Matthey has inaugurated a hydrogen internal combustion engine (H₂ICE) testing facility at its existing site in Gothenburg, Sweden.
The new centre, company’s first for this technology, focuses on emission control systems for heavy-duty hydrogen engines.
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It aims to expand the company’s capability to test complete engines rather than only individual components.
The £2.5m ($3.34m) investment has been rolled out over three years and was completed to the original schedule and budget, according to the company.
The H₂ICE set-up is designed for medium and heavy-duty applications such as buses and trucks, using hydrogen as a zero-carbon fuel in conventional engine architectures.
Johnson Matthey chief technology officer in clean air Tauseef Salma said: “This investment shows Johnson Matthey is backing H₂ICE as a ready-to-go technology that will enable mobility partners to meet their decarbonisation and climate goals.
“Our state-of-the-art Gothenburg facility positions Johnson Matthey as a world leader in sustainable technology solutions, transforming energy and reducing carbon emissions.”
Installation at the Gothenburg site can handle engines up to 600kW (800hp) and will be used to study catalyst performance within engine after-treatment and control systems.
The site is already equipped with test cells for medium and heavy-duty diesel engines.
The new hydrogen facility adds an on-site hydrogen supply and storage infrastructure, including a compressor, intermediate storage tank and storage capability up to 413 bar.
It also features hydrogen flow metering and analysis, exhaust measurement equipment, and associated control, monitoring and safety systems.
Johnson Matthey said the expanded testing capability is intended to align with evolving global regulations and with demand from transport sector customers seeking lower-emission options.
The H₂ICE investment builds on Project Brunel, a collaborative programme launched in November 2021 with Cummins and technology partners PHINIA and Zircotec.
That project concluded in March 2025 and was described by the companies as having provided evidence of improvements in hydrogen engine performance and durability.
The Gothenburg facility was officially opened by Johnson Matthey R&D director Damien Sotty, Gothenburg Test Centre manager Daniel Sandqvist and Jonas Edvardsson, managing director of Johnson Matthey Gothenburg.
