Green H2 Generation Plants: Engineering and permitting for renewable hydrogen projects in Spain

Spain

Green H2 Generation Plants are becoming a key pillar for energy decarbonization in Spain. IDOM is actively involved in the development of Green H2 Generation Plants, providing Prefeasibility Engineering and Permitting services—including environmental permits—for projects promoted by companies and funds linked to renewable energy generation. These plants vary according to the renewable energy source, electrolysis system (PEM or Alkaline, from 10 MWe up to more than 200 MWe), and distribution methods, ranging from road transport to injection into existing natural gas networks.

IDOM has been working on a varied range of Green H2 Generation Plant types, depending on the origin of the renewable energy, the electrolysis system and the form of distribution of the H2 produced. In summary:

• Renewable energy: Plants exclusively using electrolysis processes, photovoltaic 400-500 MWp (included in the scope of the services contracted to IDOM), or with power options from existing renewable parks (connection to substation and power line also included in the services contracted).
• Electrolysis System: with consumption sizes from 10 MWe to scaled solutions of more than 200 MWe, covering both PEM and Alkaline technology.
• Green H2 distribution: With concepts based on both road transport and injection systems in existing Natural Gas transport networks (in some cases, including a hydro-pipeline to the injection point).

Hydrogen