OVERVIEW NEW BUSINESS MODELS 48 Hydrogen’s bright future in the no-carbon world by Patrick Pouyanné 50 From natural gas to hydrogen by Marcelino Oreja 52 Driving the hydrogen adventure by Luís Silva Santos 54 Storing hydrogen underground by François Billard 56 Digital business strategies by Marion Calcine 58 Ardian’s sustainability journey began in 2008 by Raphaëlle Muhlmann-Eytan & Candice Brenet 60 CONCLUSIONS 62 Hy24: ready to scale up! by Pierre-Etienne Franc 64 Closing note by Mathias Burghardt 66 APPENDICES 68 Biographies 70 Hydrogen glossary 79 Hydrogen Internet resources 80 5