The energy system is a fundamental characteristic of a human society. All its individual and collective actions require the availability of free energy in various forms (mechanical, chemical, electrical). The sum of all man-made inorganic energy inter-conversion processes reaches at the end of the first decade in the twenty-first century the same dimension [1] as the biological processes needed to generate the food for humankind. Both process groups amount to about 15% of all biological solar energy conversion on the planet Earth. It is obvious that we are dealing with enormous dimensions that are difficult to comprehend, as they are so much larger than our individual frame of dimensions. In the following, we discuss a few aspects of these dimensions using the example of the German energy system as the necessary data are well accessible [2] and its absolute size of approximately 1% of the global energy system is in suitable dimension.

Download: Chemical Energy Storage

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