Energy policies play a pivotal part in helping countries achieve their sustainable development goals. Further, energy is one of the critical raw materials in companies' production processes. Therefore, ensuring a steady energy supply is essential to increasing production; otherwise, countries will inevitably slide into recession. In this context, countries should select their energy policies on the basis of a comprehensive analysis. In order to achieve this goal, many different factors must be considered at the same time. The aim of this book is to determine the right energy policies for the sustainable economic development of countries. In this framework, effective strategies for different types of energy will be presented and vital issues such as determining the right locations for nuclear power plants, providing optimal government incentives to increase clean energy investments, and determining appropriate energy policies to reduce energy dependence will be examined. Thus, country-specific optimal energy policies will be outlined, contributing to the achievement of the UN's sustainable development goals (SDG).