German electrolysis specialist Thyssenkrupp Nucera AG & Co KgaA (<a href="https://www.boerse-frankfurt.de/equity/thyssenkrupp-nucera-o-n" target="_blank">ETR:NCH2</a>) and research institute Fraunhofer IKTS have opened a pilot plant to manufacture stacks for electrolysers that use the solid oxide electrolysis cell (SOEC) technology, the German firm said on Tuesday.