qualified for black start
Swissgrid, Ancillary services ([Internet, 2022-09-07](https://www.swissgrid.ch/en/home/customers/topics/ancillary-services.html#black-start-and))
Swissgrid ensures that for the reestablishment of supply after a major incident an adequate number of power stations, qualified for black start and island operation consolidated to a buildup-cell, are ready for operation.