It is our great pleasure to warmly invite you to the 2025 5th International Joint Conference on Energy and Environmental Engineering (CoEEE 2025), which will be held in Budapest, Hungary during July 25-27, 2025. The conference is dedicated to providing the platform and opportunities for researchers, scientists, engineers and scholars to exchange and share their experiences, new ideas and research in the common research field of Energy and Environmental Engineering, and to discuss practical issues, the challenges encountered as well as the solutions adopted.

Accepted and presented papers with further extension and selection will be published in the Special Issue “Selected papers of 2024 4th International Joint Conference on Energy and Environmental Engineering (CoEEE 2024)” of Open Access Journal “Energy and Built Environment” (ISSN: 2666-1233) , which will be submitted to Ei Compendex, Scopus, and other major databases for indexing.