Blue hydrogen is created from fossil sources, where the carbon emissions are captured and stored. Green hydrogen is made from non-fossil sources and favoured by policy makers who are wary of keeping the fossil economy going, even with CCS. As more regions commit to hydrogen, finding the right cost-optimal mix is crucial to its success. Schalk Cloete summarises his paper that models the whole system based on Germany. Integrating hydrogen will require a high level of technology interdependence. A wide range of parameters must be accounted for, including wind, solar, fossil plant types, storage methods, transmission, the carbon price, the different hydrogen generating technologies, imported hydrogen, and more. Cloete concludes that Blue hydrogen, where natural gas is converted to hydrogen, has significant cost and emissions advantages and should be considered very seriously.
Energy Post 9th Nov 2020 read more »