When demand for electricity is greater than what is currently possible to produce or import a last resort is to disconnect consumers from the electricity system in order to maintain the balance of the system. When and how such a manual disconnection takes place is based on a national planning system, coined styrel. The authors provide a thorough review of the national planning process. They describe the responsible actors, how critical electricity users are identified and prioritised, and provide guidance on how to improve the planning process.
