In this article, Marcin Seredynski, Project Lead Sustainable Transformation at Interdisciplinary Centre for Security, Reliability and Trust, University of Luxembourg, explores the growing role of electric and hydrogen-powered buses in Europe’s push towards zero-emission public transport. It examines the benefits and challenges of BEBs and FCEBs, comparing their operational costs and environmental impact. Marcin also discusses the future of sustainable public transportation, highlighting the key technologies, market trends, and the implications of green hydrogen for decarbonisation.