This completely updated second edition includes case studies and a focus on the business of system operations. The broad range of actions under system operations from transmission to distribution are explored. The underpinnings of electric systems operations are highlighted, with an introduction to utilities and power systems. It offers a thorough definition of system operations, identifying and explaining the various systems that support this function and how they integrate into the utility.The book presents a thorough definition of system operations, identifying and explaining the various systems that support this function and how they integrate into the utility. The business perspective on electric systems operation, and how critical this area is to a utility's ability to provide reliable power to customers is detailed. Readers discover how a utility's network operation is a key contributor to the viable sustainment of its business. The book presents the convergence of the systems used in the grid operations of today and addresses the emerging needs of the smart grid operations of tomorrow. Readers discover how a utility's network operation is a key contributor to the viable sustainment of its business, as well as learn how system operations help to ensure the right levels of safety, reliability and efficiency in everything that relates to transmission and distribution grid management.