Switzerland’s power system is entering a new era. The rapid growth of solar PV, electric vehicles, heat pumps and batteries is reshaping how electricity is produced, consumed and shifted over time. At the same time, the grid must remain balanced in real time. As the system becomes more weather-dependent, more distributed and more dynamic, anticipating imbalance becomes increasingly challenging for system and market participants. This challenge invites students, researchers, data scientists and energy enthusiasts to explore a key question for the energy transition: How could Switzerland’s imbalance evolve over time as EV, heat pump, PV and battery penetration increase and to what extent can data-driven approaches capture it?