This book describes the history of the US power grid and how technology, regulation, politics and demand shaped it into what it is today. In general, the book is well researched and informative. The author, a cultural anthropologist, gives a much broader view of a subject that others treat as merely a technological or industrial topic. The grid shapes and is shaped by many social, cultural, economic, political and technical forces, and Bakke does a good job of explaining how these forces interact.