Explainer film introducing the BalticseaH2 project i Visby. BalticSeaH2 builds the first significant, cross-border hydrogen valley in Europe. The goal is to create an integrated hydrogen economy around the Baltic Sea to enable self-sufficiency of energy and minimise carbon emissions from different industries. The project includes 40 partners from nine Baltic Sea area countries. Combining local areas into a broader valley supports creating a genuinely integrated, interregional hydrogen economy, which has not been done previously on this scale in Europe.