Operating Reliability

The ability to withstand sudden disturbances while avoiding uncontrolled cascading blackouts or damage to equipment.

Definition by NERC

Source: ¹

The ability of the Bulk-Power System to withstand sudden disturbances, such as electric short circuits or the unanticipated loss of system elements from credible contingencies, while avoiding uncontrolled cascading blackouts or damage to equipment.

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Last modified: 2025-06-18

← Operating Envelope · Operating Reserve →

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1. NERC (2013). Reliability Terminology. http://web.archive.org/web/20250401183750/https://www.nerc.com/aboutnerc/documents/terms%20aug13.pdf ↩