While developing the technical elements of the H₂ chain is critical to ensure feasibility of H₂ deployment, creating a development path that enables economic viability is crucial to reach implementation. Planning and deployment of infrastructure in a cost-efficient way is challenging due to the multiplicity of sectors involved, spatial and temporal distribution and uncertainties in future markets. SP4 will facilitate development of a viable Norwegian H₂ infrastructure (at the national, regional and cluster levels) through identification of robust first steps and investments that will lead to solid business cases. SP4 will further enable a deep understanding of the impact of H₂ value creation on the Norwegian economy.