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Green hydrogen as a source of energy: The trillion-euro question

February 2, 2021
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If green hydrogen is to make a significant contribution to climate-friendly energy supply in the future, it will need to be produced (1) in large quantities, (2) cost-efficiently and (3) using low-carbon methods. Any solutions to these problems have remained in the realm of theory so far. Additional challenges arise in connection with the transport and storage of hydrogen. Initially, green hydrogen will be used to satisfy large-scale demand at specific locations, for example in energy-intensive industries. Like many other climate-friendly technologies, hydrogen will need government subsidies in the beginning. In the longer run, hydrogen might be used in the transport sector as well, for example as aircraft or ship fuel. In theory, hydrogen is highly versatile. However, it is quite expensive, too. That is one reason why hydrogen will probably make only a small contribution to the national and global energy transition in the next one or two decades. [more]

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