Previous workshops:
| 2025 | March 11-12 | Karlsruhe (Germany) |
| 2024 | March 13-14 | Baden (Switzerland) |
| 2023 | March 21-23 | The Hydrogen and Fuel Cell Center ZBT (Germany) |
| 2022 | March 14-16 | Schloss Hohenkammer (Germany) |
| 2021 | April 22-24 | Sion (Switzerland) (online) |
| 2020 | (no ModVal due to Covid-19 pandemic) | |
| 2019 | March 12-13 | Braunschweig (Germany) |
| 2018 | April 12-13 | Aarau (Switzerland) |
| 2017 | March 2-3 | Karlsruhe (Germany) |
| 2016 | March 22-23 | Lausanne (Switzerland) |
| 2015 | March 26-27 | Freiburg (Germany) |
| 2014 | March 17-19 | Winterthur (Switzerland) |
| 2013 | March 19-20 | Bad Boll / Stuttgart (Germany) |
| 2012 | April 2-4 | Campus Sursee (Switzerland) |
| 2011 | March 8-9 | Gustav-Stresemann-Institut, Bonn (Germany) |
| 2010 | March 23-24 | Morges (Switzerland) |
| 2009 | March 25-26 | Bad Herrenalb / Karlsruhe (Germany) |
| 2008 | March 11-12 | Winterthur (Switzerland) |
| 2007 | March 6-7 | Aachen (Germany) |
| 2006 | March 16-17 | EMPA Dübendorf (Switzerland) |
| 2005 | March 3-4 | DLR Stuttgart (Germany) |
| 2004 | March 18-19 | ETH Zürich (Switzerland) |
