The 2025 5th International Joint Conference on Energy and Environmental Engineering (CoEEE 2025), organized by Corvinus University of Budapest, will take place in the vibrant city of Budapest, Hungary, from July 25-27, 2025. This event promises to be a premier gathering of thought leaders, researchers, industry professionals, and policymakers, all focused on advancing the fields of energy and environmental engineering.We warmly invite you to participate in this exciting conference and contribute to the ongoing dialogue around the future of energy and environmental engineering. Join us in Budapest for a truly inspiring and impactful event, where cutting-edge research and solutions will pave the way for a sustainable tomorrow.