This book brings together the fundamentals and possible application functions of power system supervisory control and data acquisition (SCADA). It assists electrical engineering students, researchers, and practitioners in acquiring a solid understanding of SCADA systems and application functions in generation, transmission, and distribution systems, which are evolving day by day, to help them adapt to new challenges effortlessly. The book reveals the inner secrets of SCADA systems, unveils the potential of the smart grid, and inspires more minds to get involved in the development process.