Researchers at the Laboratory of Renewable Energy Science and Engineering (LRESE) and the Group of Energy Materials (GEM), at EPFL’s School of Engineering, have demonstrated a high-temperature electrolysis reactor transforming concentrated solar light and water into hydrogen. By using high temperatures (> 700°C), the reactor requires no rare and expensive materials for the electrochemical reaction. This integrated approach has the potential to reach solar-to-fuel efficiencies larger than that of conventional non-concentrated, solar-driven electrolysis approaches.
