The focus topic of our workshop is integrated energy (sector coupling, e.g. Power-to-Gas, Power-to-Heat, Power-to-Mobility). We will have presentations on different models of integrated energy in public transport systems. Furthermore, we would like to discuss missing regulatory frameworks on national as well as European level which hinder the implementation of integrated energy innovations. We want the participants to share their experiences and problems they have come across while trying to implement new business models of integrated energy. As the EU is currently discussing to reduce carbon dioxide emissions by 55 % (instead of 40 %) by 2030, we have to invest in sustainable integrated energy systems now. The targets are becoming more restrictive while helpful regulatory guidelines are still missing. Therefore, the EU needs a common regulatory framework as soon as possible. Our goal is to make politicians and public authorities aware that they have to guarantee a regulatory framework to pave the way for integrated energy innovations as they have major potential for successful and sustainable mobility of the future.