Welcome to the 10th International Conference on Green Energy Technologies to be held during July 20-22, 2025 in Nagasaki, Japan. ICGET serves to foster communication among researchers and practitioners working in a wide variety of scientific areas with a common interest. The conference is also an excellent forum for scientists, engineers throughout the world to present and discuss the latest technological advancement as well as future directions and trends in the field. The conference has been held in various cities including Berlin, Frankfurt, Rome, Amsterdam, Kuala Lumpur, etc., hope to see you in 2025!