Applied chemistry is an interdisciplinary field that provides the foundation for many modern technologies. This book provides a comprehensive and accessible guide to applied chemistry principles with a focus on their practical applications in electrical engineering. The book covers a wide range of topics, including electrochemistry, storage devices, energy resources, transmission materials, polarization, overvoltage, and power plant. Each chapter is designed to provide a thorough understanding of the underlying principles, with clear explanations and numerous examples to illustrate their practical applications. The first few chapters of the book provide a detailed introduction to the principles of electrochemistry, storage devices and energy resources. The later chapters of the book cover specialized topics such as transmission materials, polarization, overvoltage, and power plant. These topics are crucial for understanding the design and operation of electrochemical systems in various applications. The book is intended for undergraduate and graduate students in electrical engineering, as well as researchers and professionals who want to gain a deeper understanding of applied chemistry and its practical applications in electrical engineering. It is an invaluable resource for anyone interested in the design and development of electrical systems that rely on electrochemical principles.