This book demonstrates how Multi-Criteria Decision Making (MCDM) and Geographic Information Systems (GIS) can revolutionize sustainable energy planning. From evaluating and prioritizing criteria for optimal site selection to harnessing the power of GIS for spatial analysis and visualization, readers of the book learn about decision-making processes that drive renewable energy projects. The book includes theory and practical application, and includes illustrated maps and visualizations generated through GIS. It offers a robust foundation for professionals, researchers, and students.