Periodically shutting down the power grid is the most effective way of controlling demand. The aim is to save enough electricity during a shortage in order to maintain a sufficient supply of electricity over a longer period and to prevent the grid collapsing. A shut-down will only be used as a last resort in a power shortage situation. Distribution grid operators disconnect consumers in their region from the grid for a few hours (usually ≤ 4 hours) on an alternating basis. Where technically possible, safety-relevant services such as the emergency services or water supply are exempted from this drastic management measure.
OSTRAL is responsible for implementing this measure.
