The ‘hydrogen economy’ was first described 50 years ago, but failed to develop. Now hydrogen is making a comeback, with unprecedented momentum from both policymakers and industry amid a background of energy decarbonisation. Nevertheless, given its failure in the past, current investors and business developers in the sector are strongly advised to ensure they understand the complexities and competitive environments of the hydrogen landscape. This new course combines an excellent overview of the different elements of the clean hydrogen sector with a series of critical thinking and analysis exercises which provide clear guidance on market assessment requirements, including key opportunity and risk influences.