The book uses simple, lucid and everyday language to explain the subject. The book helps to prepare carefully and gradually, background of each topic giving suitable practical illustrations. At the end of each chapter, summary is also provided to give quick review of the chapter, which is a distinct feature of this book. The review questions are included at the end of each chapter for practice. The book deals with the new innovations in Electrical Engineering Energy Systems. Each chapter is discussed with basics and advanced improvements in the Energy Sector, which is important in understanding the subject of new emerging technology such as Nanotechnology. The book explains the application of Nanotechnology in Electrical Engineering. The book can be very helpful to students as well as teachers teaching the subject. The students have to skip nothing in the text and possibly, have to cover nothing more, to master the subject.