H-TEC Systems, founded 1997, is a company specialising in electrolysis for hydrogen production, developing Polymer Electrolyte Membrane (PEM) electrolyzers and electrolysis stacks. PEM electrolyzers are recently commercialized electrolyzers that are more flexible than alkaline electrolyzers, but are more sensitive to water impurities. The company’s goal is to facilitate the energy transition to green hydrogen and reducing global carbon emissions, as electrolyzers are the key technology for the power-to-X value chain. Parent company MAN Energy Solutions (as of 2021) provides H-TEC Systems with expertise in plant EPC, industrial compressors and reactors.