This document discusses a study analyzing the potential role of hydrogen in decarbonizing Europe's energy system out to 2050. The study uses the JRC-EU-TIMES energy system model of the EU28 countries to assess hydrogen production technologies and demand from the transport, industry, electricity storage, and residential heating sectors. The results show hydrogen starting to deploy around 2030 and increasing significantly in the following decades as decarbonization policies strengthen. Hydrogen is produced mainly from biomass and used primarily in transport and industry, though its overall contribution to sectoral energy remains relatively low. Hydrogen storage helps provide system flexibility but its role is limited compared to other storage options in the model.