The chapter explores the challenges and opportunities in establishing a green hydrogen storage and supply chain. Green hydrogen, produced from renewable sources, is a crucial component of the energy mix for decarbonizing heavy industry and transportation sectors. The key challenges involve storage and transportation, primarily due to low density and flammability. The chapter analyzes various storage technologies (compressed gas, liquid hydrogen, chemical carriers like ammonia), storage methods (salt caverns, depleted gas fields, pipeline packing, pressurized containers), and transportation modes (pipelines, trucks, ships, trains), each with its pros and cons. It emphasizes the need for several small green hydrogen ecosystems, multi-modal supply chain integration, investment, policy support, and international collaboration to accelerate green hydrogen adoption, particularly for industrial use. The transition to a green hydrogen economy presents significant economic and environmental benefits, such as job creation, reduced dependence on fossil fuels, energy security, and decarbonization. The chapter highlights the urgent necessity to convert grey and blue hydrogen already in industrial use to green hydrogen, foster public–private partnerships for pipelines and storage infrastructure, consider ammonia as a carrier, establish hydrogen ecosystem parks, and promote on-ground investment to make green hydrogen commercially viable for a sustainable energy mix.