Performant and Efficient Planar Proton-conducting Electrolysis Reactor

The PEPPER project introduces a groundbreaking advancement in hydrogen production technology aimed at meeting the soaring global demand for green hydrogen. At the heart of PEPPER lies the development of a cutting-edge planar Proton Conducting Ceramic Electrolysis Cell (PCCEL) reactor. Operating optimally between 400°C and 600°C, PEPPER's PCCEL technology aligns seamlessly with industrial waste heat sources, maximizing resource utilization.

By harnessing two robust planar cell technologies and optimizing material interfaces and manufacturing processes, PEPPER aims to slash electrical energy consumption by up to 20% compared to existing low-temperature electrolysis methods.

Led by the Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), PEPPER boasts a consortium includes key European research and industrial partners. This collaborative effort ensures a holistic approach to research and innovation, emphasizing real-world applicability. PEPPER's objectives encompass the fabrication of cells up 100cm² in size, the validation of PCCELs under various conditions, the integration into specialized short stacks tailored for PCCEL technology, and the demonstration of long-term operational stability and safety at temperatures ≤ 600°C. Through comparative studies with Solid Oxide Electrolysis (SOEL), PEPPER aims to establish benchmarks for performance and sustainability, guided by comprehensive Life Cycle Assessments (LCA), setting a pathway towards commercialization.

By elevating technological readiness from TRL 2 to TRL 4 PEPPER will set the stage for a future where highly efficient and environmentally sustainable hydrogen production can significantly contribute to Europe's energy security and decarbonization goals.