With increasing digitalisation in the energy sector and the associated emergence of new business models, topics such as intra-day trading, dynamic electricity tariffs, balancing to increase grid efficiency and the use of the CLS interface (Controllable Local Systems) of an SMGW infrastructure (Smart Meter Gateway) are coming into focus. The results should help to make the energy system more flexible and also create the possibility of involving end customers in the energy distribution and generation system even better and more easily.