2025 4th International Conference on Green Energy and Power Systems (ICGEPS 2025) will be held in Hangzhou, China during April 11-13, 2025. Green energy refers to energy that can be directly used in production and life. It includes nuclear energy and “renewable energy.” With the continuous growth of energy demand and the increasing awareness of environmental protection in countries around the world, it is urgent and imperative to establish a green energy innovation research and development, promotion and application system, Electricity will play a huge role in the development of green energy. The conference aims to provide a platform for experts and scholars to discuss the global development of green energy and power-related technologies, thus promoting the sustainable development of energy. Welcome experts and scholars in related fields to contribute actively and take time to attend the conference.