The main aim of this book is to give a complete and comprehensive introduction to electric storage systems for electric transportation. Emphasis is placed on providing a large number of exercises with different levels of difficulty, so readers can validate their understanding and take a step towards the dimensioning of electric energy storage systems. Especially interesting are the baseline of lectures for specialized undergraduate students or graduate students from different specialities, looking to learn more about electric energy storage systems. Furthermore, the book can be helpful for professionals wanting to learn more about electric energy storage systems.