From diesel to electric or somewhere in between, vehicles of all types ply our roads and motorways day and night. In our busy modern work culture, transport is an important day-to-day issue for everyone, with much improved public transport likely to be the solution. In this Cois Coiribe feature, Professor Rory Monaghan of the Energy Research Centre, Ryan Institute and School of Engineering examines the promise of hydrogen – one of the newest developments in sustainable energy. He explains his work toward bringing that promise to fruition through creation of a ‘Hydrogen Valley’, and how Ireland, with its enormous renewable energy resources, is ideally positioned to lead in this area.