In a sustainable world, renewable energy sources replace traditional fuel sources. Nowadays, with globalization, energy management is important in ensuring sustainability. Renewable energy sources are given more importance in energy management; therefore, the share of the renewable energy sector in the total energy supply is increasing yearly. Renewable energy sources have a significant share, increasing every year. The renewable energy sector is predicted to grow in the coming years. However, it appears that the financing of companies in the renewable energy sector have not been investigated in detail. The energy supply in the renewable energy sector is increasing every year. With the increase in production and population, new sources must meet energy needs. Increasing energy supply is only possible by making new investments. This book consists of 26 theoretical and practical chapters on current issues. This book, which addresses current issues and brings a different perspective to renewable energy financing, is thought to contribute to the literature. The most important feature that makes this book different from others is that it conveys to the reader the current financing practices of renewable energy companies in the global world in a practical way. For this reason, it is thought that this book will significantly contribute to the literature.