John Cockerill Hydrogen has achieved a significant milestone in strengthening Europe’s green hydrogen manufacturing ecosystem by unveiling its first electrolyzer stack manufactured and assembled in France. The accomplishment comes one year after the company acquired the strategic assets of McPhy, reinforcing its commitment to expanding European electrolyzer production and supporting the continent’s clean energy transition.
The newly completed 5 MW electrolyzer stack was assembled at the Belfort facility in France using an advanced production line. This achievement reflects the successful integration of McPhy’s expertise into John Cockerill Hydrogen’s operations and highlights the company’s ability to preserve and further develop critical hydrogen technologies within Europe. The Belfort plant now serves as an important center for the production and assembly of next-generation electrolyzers.
Simultaneously, the company is expanding manufacturing activities at its Aspach and Seraing facilities. Following the successful delivery of electrolyzer equipment totaling 25 MW for a green hydrogen plant in Belgium, the Aspach site has begun production of eight additional electrolyzers with a combined capacity of 40 MW for a hydrogen project in the Netherlands. These developments demonstrate the coordinated capabilities of the company’s manufacturing network across France, Germany, and Belgium.
John Cockerill acquired McPhy’s principal assets—including the Belfort manufacturing plant, intellectual property, advanced technologies, and nearly 80 skilled employees—in July 2025. Since then, the company has invested extensively in strengthening technical expertise, modernizing manufacturing infrastructure, and accelerating the development of more efficient electrolyzer technologies.
The company’s integrated production model allows each facility to contribute specialized capabilities. Belfort focuses on technological innovation and electrolyzer stack assembly, while Aspach manufactures critical components and Seraing undertakes final equipment assembly for commercial projects. This collaborative approach enables efficient production while supporting the growing demand for green hydrogen infrastructure across Europe.
The expanded manufacturing capacity is expected to help accelerate decarbonization across key industrial sectors including chemicals, refining, fertilizers, and other energy-intensive industries that are increasingly adopting renewable hydrogen as a low-carbon feedstock and fuel.
According to CEO Nicolas de Coignac, the successful production of the first French-built electrolyzer demonstrates the company’s commitment to preserving European industrial expertise while advancing large-scale hydrogen manufacturing. He emphasized that Europe must now complement its support for production with stronger market demand and policy measures encouraging the adoption of European-made hydrogen technologies. Through its growing industrial footprint, John Cockerill Hydrogen continues to strengthen its position as one of Europe’s leading electrolyzer manufacturers and a key contributor to the expansion of the regional hydrogen economy.
Impact on Product and Chemical Commodity Prices
John Cockerill’s expanded electrolyzer manufacturing capacity will improve the availability of advanced hydrogen production equipment, accelerating green hydrogen deployment across Europe. Increased electrolyzer production will support larger renewable hydrogen projects serving the chemicals, refining, fertilizer, and steel industries, reducing dependence on fossil-based hydrogen over the long term. For chemical commodities tracked by ChemAnalyst, the immediate price impact is expected to remain limited because hydrogen infrastructure expansion requires time before influencing commercial production. However, sustained investments could gradually moderate production costs for green ammonia, methanol, and other hydrogen-based chemicals, supporting long-term supply growth while exerting downward pressure on their production costs and improving market competitiveness.
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