The data provided were gathered for the assessment of hydrogen and/or ammonia pathways in Egypt using the OSeMOSYS framework. However, the data available through this repository are independent of the tool. The dataset presented was collected from websites, reports, and databases of international organizations and national entities, as well as from academic articles. It includes historical and/or projected data (2019-2050) of end-use energy demands, capital and operating costs, efficiencies, operational lifetimes, capacity factors, residual capacities, emission factors, and energy availabilities. This material has been produced under the Climate Compatible Growth (CCG) programme, which brings together leading research organizations and is led out of the STEER centre, Loughborough University. CCG is funded by UK aid from the UK government. However, the views expressed herein do not necessarily reflect the UK government's official policies. This work was developed with the Energy Transition Council (ETC), which assisted in identifying needed research areas and connected to relevant stakeholders for a discussion on essential aspects of research.