Black Start

Where this fits

A public, high-level explanation of restoring selected generation without relying on the normal external grid.

Core system ideas

Black-start capability allows selected resources to energize parts of the system during widespread outages.

Restoration then proceeds through carefully coordinated islands and network sections.

Actual black-start procedures are security- and safety-sensitive and are not provided here.

Interfaces and tradeoffs

Reliability involves both routine adequacy and the ability to remain within acceptable conditions after disturbances. Fast controls, reserves, protection, asset condition and trained operators contribute at different timescales.

What organizations measure

Availability of black-start resources, testing status and restoration milestones.