This book investigates positive energy buildings (PEBs). It provides and describes them, explains why they are important in the fight against climate change and discusses how they might be implemented. This book begins by contextualizing PEBs, discussing concepts, definitions and how they may be included by planning authorities in development plans. It then thoroughly explains what PEBs are and their impact on a climate-neutral economy. The book discusses technological, economic, societal and regulatory challenges and opportunities in employing PEBs, before concluding with possible scenarios for implementing them. This book is of use to researchers, practitioners, and policy makers interested in local and decentralized energy, as well as plans to achieve carbon neutrality.