In 2023, the Braunschweig Energy Seminars will take place for the 12th time from September 21 - 22. Speakers and participants will meet in the Haus der Wissenschaft. A wide variety of topics from the fields of superconductors, direct current technology and hydrogen will be discussed. Science, industry and student participants can exchange technical information in lectures and during the poster session. There will also be enough space for further discussions, networking and social exchange during the evening event on Thursday. The event will conclude with a lab tour of various TU Braunschweig laboratories that are active in this topic area.