"Future Sustainable Smart DC Micro-grids with Green Hydrogen" is a critical guide that addresses the global energy crisis through sustainable solutions. It focuses on the integration of green hydrogen technology into direct current (DC) micro-grids, providing a resilient response to energy challenges. The book begins by setting the context of the energy crisis and the imperative for renewable solutions, highlighting the efficiency of micro-grids. It explores the role of green hydrogen, produced from renewables such as solar and wind, in enhancing the sustainability of micro-grids. Covering technological innovations, environmental and economic impacts, the book also addresses challenges and future prospects. It is essential for those involved in renewable energy, as it combines technical insight with policy considerations and emphasizes the importance of international collaboration.