"I'm the lightest element you'll ever find - but don't be fooled, I'm not to be undermined." Geoff's voice avatar speaks in riddles as Melena and Shuko try to solve a puzzle: the mystery of how to produce green hydrogen. Electrolyzers are the main component for turning renewable energy into hydrogen, and at their core is a stack of PEM (proton exchange membrane) electrolysis cells. Bosch's Annika Utz talks about the challenges of developing a stack that can be mass-produced. Since the market for them is evolving, it's a chicken-and-egg problem. Can philosopher Roy Sorensen offer a clue to solving such conundrums? Hit play and find out!

On the road with hydrogen-powered trucks by Bosch: https://www.youtube.com/watch?v=d7RKYko5JK0

Will Bosch engineer Tom Collins find a climate-friendly way to heat homes in Britain?https://www.youtube.com/watch?v=n3WzuytTvYk

More Bosch podcasts: Beyond Bosch: https://podtail.com/de/podcast/beyond-bosch/