Black start capability

Black start capability (BS) is the capability of a generating unit to start up without an external power supply, reach the set voltage value, connect to the grid and supply an island. This AnS allows for a recovery from a total or partial shutdown (a loss of supply) when the main aim is to quickly and safely return to the normal operational situation in the affected part of the system. Providers of this AnS must meet the conditions specified in the Grid Code including certification requirements.