The United Nations launched the “2030 Sustainable Development Goals” (SDGs), which propose 17 core objectives for global governments and businesses to strive for sustainable development. Many of these core goals are closely related to physics. SDG Goal 7 is to “ensure that everyone can access affordable, reliable, sustainable and modern energy”. By 2030, strengthen international cooperation to enhance research and technology in clean energy, including renewable energy, energy efficiency, more advanced and cleaner fossil fuel technology, and promote investment in energy infrastructure and clean energy technology. The department promotes energy conservation and carbon reduction for the earth and reduces environmental pollution through many related solar energy application courses, such as Light-emitting Diodes and Solar Cells, Introduction to Emerging Materials, Modern Physics Experiments, Handmade Optics… etc., and is committed to enabling students to develop sustainable energy in the future through the abilities learned in the department, achieve carbon reduction, and contribute to the earth together.