High Temperature Electrolyser Manufacturing 300MW/a (HTEM300)

Introduction

HTEM 300: High Temperature Electrolysis Manufacturing 300 MW/a

The project aims to establish a 300-megawatt (MW) manufacturing facility for high-temperature Solid Oxide Electrolysis (SOE) stack modules, with potential future scalability towards multi-gigawatt production facilities. It also aims to completely avoid greenhouse gas (GHG) emissions relative to the reference scenario, directly contributing to Europe’s decarbonisation targets and accelerating the transition from fossil fuels to clean hydrogen.

Innovative Production Approach

HTEM300 introduces a comprehensive and innovative approach to SOE stack module production. The project uses advanced manufacturing processes, including:

• Semi-automated assembly
• Quality control systems
• Intelligent logistics

These processes ensure high production yields, consistent quality, and more effortless scalability. The SOE modules’ high operating temperature, as well as the possibility to incorporate heat, enables a higher electrical efficiency of 20-30% in hydrogen production compared with other technologies such as PEM electrolysers. This allows for their installation within industrial hard-to-abate sectors with high levels of surplus heat, such as steel and fertiliser production.

Market Impact

SOE technology’s competitive advantage and expected market growth drive further cost reductions in hydrogen production. HTEM300 aims to avoid a cumulative 3.7 million tonnes of CO2e by replacing conventional energy carriers with renewable hydrogen.

Alignment with European Initiatives

HTEM300 aligns with the European Green Deal, the Net-Zero Industry Act, and Europe’s hydrogen strategy. By fostering a domestic manufacturing ecosystem for clean hydrogen, the project contributes to Europe’s clean-tech supply chain and supports the fast and resilient scale-up of renewable hydrogen production. Developing manufacturing capacity for advanced solid oxide electrolyser cells stack modules will reinforce Europe’s position as a global leader in green technologies and contribute to its leadership in the hydrogen sector.

Economic Contribution

The project aims to create over 100 direct and indirect jobs, contributing to the growth of the local economy and supporting the European clean-tech industry. The facility will strengthen regional supply chains and foster resilience within Europe’s clean energy infrastructure.