Book excerpt: To promote academic exchanges among scholars and experts in the field of renewable energy and power engineering from various countries, share research experience, explore cooperation opportunities, and promote the development of related scientific research, the 6th International Conference on Renewable Energy and Power Engineering (REPE) will be held on September 15 17, 2023 in Beijing, China, organized by Tsinghua University and hosted by the Department of Electrical Engineering and Applied Electronics, Tsinghua University The conference aims to discuss the application technology and industrialization development of renewable energy and power engineering, targeting researchers, engineers, market developers, and industry organizations in the field of intelligent technology Topics covered will include the development trends, application and business models, and entrepreneurial experiences of renewable energy and power engineering applications