Two essential challenges for contemporary society are energy and the environment. Fossil fuels, such as coal, oil, and natural gas, are nonrenewable and cannot provide an endless source of energy. Moreover, there are significant environmental problems associated with the use of these conventional energy sources, such as air pollution and global warming. The main cause of global warming, which raises the average global temperature and sea level, is CO2 emissions. It is clear that in order to build a sustainable and eco-friendly future, both energy resources and energy-consuming systems need to be reevaluated given the existing energy backdrop. Among the best energy supply choices, renewable energy sources including hydropower, wind power, and solar energy are a few of them. In comparison to conventional energy sources, renewable energy sources are more abundant and environmentally friendly. One of the most appealing forms of renewable energy, which is now accessible, is solar energy. Solar energy has emerged as a crucial element of the renewable energy revolution in providing a sustainable response to our expanding energy requirements. For the given extraordinary rate at which scientific discoveries are being made, solar technology offers a bright future full of prospects for innovation and advancement. This chapter aims to emphasize the critical role that solar energy plays in sustainable development concerning environmental issues, problems, and solar energy applications. The thorough analysis covers the commercial and environmental effects of sustainable solar energy. It illustrates how the use of solar energy can help people to meet their energy needs, encourage the creation of new jobs, and enhance environmental protection. Utilizing solar energy, which is often a steady and efficient energy source, is essential for a sustainable future. As such, its development and deployment must be given top priority in global energy solutions.