This book focuses specifically on policy mixes and wind power diffusion in four Nordic countries – Denmark, Finland, Norway and Sweden.  Although these Nordic welfare states have much in common, they have adopted different wind power policies and experienced dissimilar diffusion trajectories. Understanding these patterns across the Nordic countries is the central puzzle that this book investigates. Empirically, this book provides a first-of-its-kind comparative study of wind power policies in the Nordic countries. Analytically, the authors contribute to the transition policy mix literature, which remains largely insensitive to political feasibility. This book will be of interest to researchers and students as well as private and public decision makers looking for tools to enable the energy transition.