The article delves into the realm of hydrogen technology roadmaps, focusing on the innovation opportunities present in the UK's hydrogen economy. Through stakeholder engagement and an extensive literature review, the piece highlights the potential for growth and advancement in this sector. Additionally, it provides an overview of the UK's current capabilities in hydrogen technologies and identifies critical enablers necessary for the country to leverage its position in the hydrogen technology market to the fullest. Sectors and scenarios related to hydrogen needs are analyzed, considering global perspectives up to 2050 and specific UK scenarios. The article also outlines a techno-economic methodology, offering insights into the analytical framework supporting the hydrogen economy. By exploring the 'end-to-end' value chain of hydrogen production, storage, distribution, and utilization, the article underscores the economic significance associated with hydrogen as a fuel or chemical feedstock. Moreover, it discusses the hydrogen market, infrastructure, technology market, and supply chains, shedding light on the various components that contribute to the overall hydrogen ecosystem and its potential for innovation and growth.