This book will give readers a thorough understanding of the fundamentals of power system analysis and their applications. Both the basic and advanced topics have been thoroughly explained and supported through several solved examples. Important Features Load Flow and Optimal System Operation have been discussed in detail. Automatic Generation Control (AGC) of Isolated and Interconnected Power Systems have been discussed and explained clearly. AGC in Restructured Environment of Power System has been introduced. Sag and Tension Analysis have been discussed in detail. Contains over 150 illustrative examples, practice problems and objective-type questions that will assist the readers. Answers to the problems and multiple choice questions are also given. With all these features, this is an invaluable textbook for undergraduate and postgraduate electrical engineering students. GATE, AMIE and UPSC engineering services? aspirants along with practising engineers would find this book extremely useful.