This essay delves into the critical role of sustainable energy in achieving the United Nations' Sustainable Development Goals (SDGs). It begins by introducing the SDGs, emphasizing the interconnectedness of the 17 goals and highlighting the central importance of energy, particularly SDG 7, which focuses on ensuring access to affordable, reliable, sustainable, and modern energy. The essay explores how energy influences various SDGs, including those related to poverty, hunger, education, health, and gender equality. It then identifies key challenges in achieving sustainable energy goals, such as monetary obstacles, pricing and regulatory issues, and the need for efficient business models. The essay proposes potential solutions, including railway transportation, smart grids, and alternative fuel vehicles. The conclusion reinforces the necessity of sustainable energy for global development, emphasizing its role in poverty reduction and creating a sustainable future.