The core of the book is the presentation of a systematic, continuous and logical chain into the coupled total energy system (GES) of the future, which will lead to the fully sustainable use of renewable energies. Thus, unified models are proposed that are applicable to the subsystems/sectors throughout and allow the optimization of the entire GES. Appropriate algorithms and approaches are illustrated with numerous examples. This is embedded in the context of efforts to fully integrate energy generated from renewable sources into the GES. The overarching role of IT systems for secure operations has been emphasized in the book. The relevance of the correct mapping of technologies to use cases is elaborated and necessary steps derived from this are considered technically and organizationally (standardization). Special attention is paid to the didactic presentation of the material in order to present this new, difficult and complex problem "e;as simple as possible, but not simpler"e; [according to Einstein].

The core of the book is the presentation of a systematic, continuous and logical chain into the coupled total energy system (GES) of the future, which will lead to the fully sustainable use of renewable energies. Thus, unified models are proposed that are applicable to the subsystems/sectors throughout and allow the optimization of the entire GES. Appropriate algorithms and approaches are illustrated with numerous examples. This is embedded in the context of efforts to fully integrate energy generated from renewable sources into the GES. The overarching role of IT systems for secure operations has been emphasized in the book. The relevance of the correct mapping of technologies to use cases is elaborated and necessary steps derived from this are considered technically and organizationally (standardization). Special attention is paid to the didactic presentation of the material in order to present this new, difficult and complex problem "as simple as possible, but not simpler" [according to Einstein].

Climate policy goals of sustainable energy supply.- Why do we need an overall energy system.- Energy consumption and CO2 emissions.- Sector coupling.- Paradigm shift caused by renewable generation.- Potentials of renewable generation.- Methodology and model construction for sector coupling.- Modeling of an overall energy system.- Hub model.- Temporal resolution of energy flows.- Substitution of energy yields.- Optimization of an overall energy system.- Energy use sectors and their energy consumption.- Energy supply and the role of hydrogen.- Net-Zero-Factory.- Electric mobility.- Optimization of an overall energy system. Optimization of an overall energy system.- Optimization of an overall energy system.- Energy use sectors and their energy consumption.- Energy supply as well as the role of hydrogen.- Net-Zero-Factory.- Electromobility.- Methodology of modelling the energy hub components.- Modelling of generation sectors.- Flexibility of an overall energy system.- Role of information and communication technology.- Perspectives of the overall energy system.