Advertisement Siemens Energy and Messer Group have entered into a co-operation agreement with the goal to work on green hydrogen projects in the 5 - 50 MW range for industrial and mobility applications. Within the framework of this agreement, Messer Ibérica has already submitted three clean hydrogen projects in the chemical complex of Tarragona, Spain, to the Spanish government. These projects will have a total electrolyser capacity of 70 MW. The intention of the partners is to achieve the most economic operation possible, by maximising cost efficiency and the utilisation of all co-products in an integrated hub concept. In the Tarragona chemical park Messer Ibérica operates a pipeline network for oxygen where this electrolysis co-product will be used.