On the 19th and 20th of May 2022, Martin Colla, Paolo Thiran, Panagiotis Varelas, Line Vanparys, Xavier Rixhon and Francesco Contino took part in a workshop in collaboration with the Lehrstuhl Energiesysteme & Energiewirtschaft of the Ruhr-Universit├Ąt Bochum (RUB), led by Valentin Bertsch. Besides UCLouvain and RUB groups, researchers from DLR, EOENRC of RWTH Aachen University, EnBW and J├╝lich Foschungszentrum. Many topics have been presented and discussed: societal and behavioural aspects of the transition, energy system modelling, multi-objective optimisation, heat and energy storage. This workshop was the opportunity to present and challenge works, share good practices as well as foster potential future collaborations.