John Cockerill is currently the world leader in water electrolysis solutions and a major industrial player throughout the world. For more than 200 years, John Cockerill has been developing energy production solutions on a large scale, in particular, heat recovery steam generators. Being aware of the challenges posed by global warming, John Cockerill, for over 15 years, has provided its expertise to support renewable energies and become a global leader of energy transition. The portfolio includes solar thermal receivers for concentrated solar power plants, energy storage solutions based on electric batteries, micro-grid management and hydrogen solutions. John Cockerill electrolysers, with a stack capacity ranging from 5 to 1000 Nm3/h, meet the growing needs of mobility, industry and, of course, energy markets. In 2019, the John Cockerill group with a workforce of 6000 employees, achieved a turnover of 1.26 billion Euros in 22 countries on 5 continents.