Creating hydrogen from an electrolyzer is not new. However, creating green hydrogen is a game-changer. Electrolyzer manufacturers are facing new challenges such as the need for economies of scale, to reduce production and use costs, to improve efficiency with intermittent energies, to increase modularity, and finally ensure the safety of users. Today, the industrial equipment industry at Dassault Systèmes has formed a team of simulation engineers, 3D engineers, project managers, market analysts, etc.  The objective is to propose to them the right solution to answer their request.