ents of the European hydrogen economy, with the purpose to eventually achieve commercial competitiveness of hydrogen. Large scale storage and hydrogen backbones will be constructed, captive solutions and hydrogen valleys will be realised, supported by appropriate measures to stimulate supply and demand. For most applications, hydrogen will require some sort of regulatory support, including for example through tariffs, auctions/tenders, quotas, investment support, tax relief, supported by Guarantees of Origin (GO). Most hydrogen production and applications will have achieved commercial competitiveness at the end of the ramp-up phase. The Guarantees of Origin will have become a tradable commodity, much like green electricity GOs today.