In Europe, and particularly in Germany, we are facing the so‐called energy turnaround. This refers to changes in the energy sector - moving from fossil fuel generation to primarily renewable energy generation. The key challenge of the energy turnaround is to ensure a steady supply of energy in spite of the fluctuating nature of renewable energy sources. Traditionally, energy supply has been adjusted to the demand; in future, it will also be necessary to adjust the demand or load to the fluctuating nature of energy generation. In future, many energy suppliers will offer time variable electricity rates in order to motivate customers to use electricity when cheap, and to not use it in case of peak demands, in order to implement indirect load management. KNX City addresses current challenges related to buildings, mobility, energy generation, infrastructure and communication, and provides appropriate KNX solutions.