We were pleased to participate in this year's Siemens RIE (Research and Innovation Ecosystem) conference on "Sustainable Energy and Infrastructure" at RWTH Aachen University, with a focus on Grid and Building Technologies. There were interesting presentations and discussions with experts from industry and research. Especially the discussions with Prof. Dr. Andreas Ulbig (IAEW, RWTH) and Dr. Adam Slupinski (Siemens AG) in the Expert Exchange on Grid Technologies in the Collective Incubator to which we were invited were very exciting. The subsequent discussion with Peter Körte, Chief Technology and Strategy Officer at Siemens, was also very informative.