Facts and figures

General Information

  • PROJECT FULL NAME: Novel modular stack design for high PREssure PEM water elecTrolyZer tEchnoLogy with wide operation range and reduced cost
  • ACRONYM: PRETZEL
  • POJECT REFERENCE: 779478
  • TOPIC: FCH-02-1-2017: Game changer Water Electrolysers
  • DURATION: 36 months
  • START DATE: January 1st 2018
  • END DATE: December 31st 2020
  • PROJECT FUNDING: € 1,999,088.75
  • COORDINATOR: Deutsches Zentrum für Luft – und Raumfahrt (DLR) (Germany)
  • PARTICIPATING ORGANISATIONS: PRETZEL comprises a consortium of 9 partners from 5 European countries

Performance Targets

The main performance targets of the project PRETZEL are the development of a novel polymer electrolyte membrane electrolyzer (PEMEL) system with the following benefits:

  • High system efficiency by 70 %
  • H2 output pressure of 100 bar
  • Rapid response of below 1 second for a hot start and below 10 seconds for a cold start
  • Dynamic operation range between 4 and 6 A cm-2, ability for 1.5 times overload
  • Water temperature of 90 °C
  • Higher than 2000 h operation