Partnership between Purem by Eberspaecher and Topsoe reaches milestone

Esslingen / Neunkirchen (Germany), 5 June 2025 – As part of the partnership, Purem by Eberspaecher produces and assembles parts for Topsoe’s Solid Oxide Electrolyzer technology. The first SOEC (Solid Oxide Electrolysis Cell) pressure vessels have now been showcased at Neunkirchen plant. Purem by Eberspaecher therefore contributes to Topsoe’s electrolysis technology for green hydrogen. This underscores the exhaust and acoustics specialist’s commitment to developing new business areas.

Purem by Eberspaecher is developing solutions and technologies for a clean future in cooperation with strategic partners in order to open up new target segments in the constantly growing hydrogen market. Purem by Eberspaecher has developed a manufacturing concept for pressure vessels suitable for large-scale production together with Topsoe, a leading global provider of advanced technology and solutions for the energy transition. Topsoe’s SOEC technology is highly efficient in the production of hydrogen from water and addresses one of the major challenges of hydrogen as an energy source: its availability. Two of the pressure vessels produced in Neunkirchen were showcased during a festive event at the beginning of June, attended by the Topsoe management as well as Jürgen Barke, the Minister of Economic Affairs of Saarland.

Expertise in industrial designs
The principle of high-temperature electrolysis is highly efficient and has low energy requirements compared to known technologies. The SOEC pressure vessels form the centerpiece of the electrolysis technology as the chemical reaction to produce hydrogen takes place in them. Purem by Eberspaecher is one of Topsoe’s suppliers for the assembly of these vessels. The Esslingen-based company will not only assemble the vessel but also produce additional steel parts. Purem by Eberspaecher’s expertise in industrialization was one of the key factors for Topsoe in the cooperation: “We have developed a strong electrolysis technology to support green hydrogen production. We’re happy to work with Purem by Eberspaecher to further strengthen our supply chain and to utilize their extensive industrial expertise,” says Kim Hedegaard, CEO Power-to-X, Topsoe.

New expertise for new requirements
“We are positioning ourselves for the future, which is why our focus is increasingly on new business areas,” explains Benjamin Brenkel, Executive Vice President and Head of Business Unit Europe, Purem by Eberspaecher. “This creates a new set of requirements that we are actively working to meet. We are acquiring the expertise and skills we need and continually developing our product portfolio and employees.” To support the development and manufacturing of the SOEC vessels, the exhaust and acoustics specialist trained selected colleagues at the Neunkirchen site in the necessary welding engineering and laid the foundation for certifications outside the automotive environment. Series assembly and production of the vessels is scheduled to ramp up at the Purem by Eberspaecher plant in Saarland at the end of 2025.

Background:
A solid oxide electrolysis cell (SOEC) produces hydrogen using the principle of electrolysis. To put it simply: water vapor is fed into the cell, which is split into hydrogen and oxygen with the help of electricity. The resulting hydrogen can be used for various applications – and therefore various markets – for example for chemical products, in steel production or to fabricate e-fuels for mobility.

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Global Media Contact: 
Anja Kaufer
Vice President Corporate Communications 
Eberspächer Group
Phone: +49 711 939-0250
press@eberspaecher.com

About Purem by Eberspaecher:
Purem by Eberspaecher is a subsidiary of the Esslingen-based Eberspaecher Group. To achieve clean and quiet mobility, around 7,500 employees develop and produce exhaust and acoustic systems for passenger cars, CVs, and off-road vehicles. The technologies make a significant contribution to meeting the strictest emission standards and noise guidelines. Its customer base includes the world’s leading vehicle manufacturers. In 2023, the area within the group of companies generated revenue of around 5.5 billion euros. Net revenue adjusted for transitory items amounted to 2.2 billion euros.

About Eberspaecher:
With approximately 11,200 employees at 80 locations worldwide, the Eberspaecher Group is one of the automotive industry’s leading system developers and suppliers. The family business, headquartered in Esslingen am Neckar, stands for innovative solutions in exhaust technology, automotive electronics and thermal management for a broad range of vehicle types. In combustion or hybrid engines and in e-mobility, the components and systems from Eberspaecher ensure greater comfort, higher safety and a clean environment. Eberspaecher is paving the way for future technologies such as mobile and stationary fuel cell applications, synthetic fuels as well as the use of hydrogen as an energy carrier. In 2023, the Group generated revenue of around 6.4 billion euros. Net revenue adjusted for transitory items amounted to 3.0 billion euros.