The main objective of X-SEED is to make renewable hydrogen more affordable. The key innovation is the development of a membrane-less electrolyzer that operates in supercritical water conditions—above 374°C and 220 bar. This approach produces high-quality hydrogen, improving energy efficiency, sustainability, and system longevity.
With a duration of three and a half years, the X-SEED project is coordinated by Technological Centre Leitat, also involves SNAM, Industrie De Nora, Particular Materials and DTU.
X-SEED project is co-funded by the European Union and supported by Clean Hydrogen Partnership and its members with a total budget of €2,989,495.
X-SEED goes beyond technology by driving the hydrogen ecosystem, helping Europe achieve climate goals and boost its leadership in energy transition and technological innovation
X-SEED will validate, at laboratory scale, a cell and short stack membrane-less supercritical electrolyzer. This corresponds to a technological advance from TRL2 to TRL4
Develop of novel high-performance, and stable catalysts and electrodes for electrolysis with content of CRM (Critical Raw Materials) below 0.3 mg/W.
Develop of, by multiphysics modelling, an optimized membrane-less reactor for high-quality H₂ and O₂ production
Assemble and performance validation of electrolyzer cell and 5-cells stack operated at 220 bar and 374ºC
Demonstra-te the production of hydrogen with an energy requirement below 42 kWh/kg H2 and production cost of 2-3 €/kg of H2.
Reduce the use of scare materials and produce catalysts from wastewater. Use wastewater as an electrolyte and industrial thermal waste in the electrolyzer. Consider sustainability assessment in electrolyzer development.
Contribute to scientific advances and creation of social awareness and acceptance of green H2 economy
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