E4tech led a public-private roadmapping exercise to drive sustainable economic growth in the UK hydrogen and fuel cell industry in the period to 2025 and beyond. Our clients were Innovate UK, the Department of Energy and Climate Change (DECC), Transport Scotland, Scottish Government, Scottish Enterprise, UK Hydrogen and Fuel Cell Association (UKHFCA), Scottish Hydrogen and Fuel Cell Association (SHFCA), and the Knowledge Transfer Network (KTN). E4tech, working with Element Energy, developed 11 mini roadmaps covering different applications for hydrogen and fuel cells, analysing their potential by 2025, role to 2050, and benefits to the UK. We consulted on these widely, running ten workshops around the UK, and through multiple stakeholder interviews. We brought the mini-roadmaps together into an overall national roadmap highlighting actions needed between now and 2025 to realise benefits from early deployment, and to provide the evidence needed to underpin decisions needed on UK energy systems to 2050.