The global climate crisis has accelerated the search for sustainable energy alternatives, positioning green hydrogen as a promising solution for the decarbonisation of various industrial sectors. This article takes a comprehensive look at the role of green hydrogen in Chile's energy transition, analysing its potential to reduce greenhouse gas emissions, promote sustainable economic development and position the country as a world leader in clean energy. It assesses the World Bank's recent investment of US$150 million in the 'Green Hydrogen Facility in Chile' programme, exploring its implications for the Chilean energy industry and the Latin American and Caribbean region. The study addresses the technical, economic, political and social aspects of green hydrogen development in Chile, including technological challenges, market opportunities, necessary public policies and expected socioeconomic impacts. It analyses the current energy context in Chile, characterised by an increasing share of renewable energies, and projects the country's potential to become a leading exporter of green hydrogen globally. It also examines the role of green hydrogen in the decarbonisation of key sectors such as mining, transport and heavy industry, as well as its potential to drive the creation of green jobs and the development of new value chains. The article concludes with a critical assessment of the prospects for green hydrogen in Chile, offering recommendations to maximise its benefits and mitigate the risks associated with its large-scale implementation.