With the success of the previous 8 year, ICGEA came to its 9th edition in 2025. It is proud to announce that 2025 The 9th International Conference on Green Energy and Applications will be held during March 7-9, 2025 in Singapore, which is sponsored by Singapore Institute of Electronics. The theme of ICGEA 2025 is to bridge and connect presenters and audience with different disciplines and background as well as from different geographical locations. The most interesting and disruptive technology often happened at edges and boundaries of different disciplines, and so the aim of the conference is to bring these brains together to synthesize the ideas and knowledge from different sources to achieve the energy innovation.