This book provides an introductory review of electric energy using examples, numerical calculations, and theory to describe the basic elements of the field. Its coverage includes electric infrastructure, the grid, system operations, renewable energy, alternating-current circuits, three-phase power, electrical safety, power electronics, transformers, electric machines, power quality, blackouts, and future power systems. This book provides a problem-oriented, student-centric approach to electric energy in all its various forms and applications. The text is example-driven with numerous practical problems interspersed with descriptive text and broad coverage. It combines the fundamentals of traditional energy conversion with contemporary topics, giving students the background they need to meet future challenges. Features: Provides a comprehensive coverage of electric energy and power systems Provides extensive use of worked examples and solutions, with pragmatic approach and easy-to-follow organization Presents streamlined presentations and structure, using real system data and a practical perspectiveIncludes case studies on system disturbance events and blackoutsIncludes contemporary issues on data centers, electric vehicles, and pumped hydro storageThis text is aimed at undergraduates in electrical and mechanical engineering and beginning graduate students, as well as professionals needing an introductory course in electric energy before a more advanced treatment of power flow analysis.