The book provides a comprehensive overview and insight into the spectrum and complexity of electricity generation, distribution, storage, and usage in an illustrative manner. It presents the current state and principles of existing and future possibilities for converting fossil, renewable, and nuclear primary energy sources into electricity, addressing these topics from technical, physical, as well as social and economic policy perspectives. It is written for those interested in expanding their knowledge about possible conversion techniques of primary energy sources into electrical energy and their transmission. Graphics enhance understanding, while mathematical derivations are omitted. The authors' critical reflections allow readers to engage with the topic in a nuanced way and form their own opinions.