Today’s LiveWire Spotlight evaluates the latest NERC’s Lesson Learned concerning a major incident touched off by human error and followed by a series of Remedial Action Scheme (RAS) Misoperations. The incident has disturbing similarities to the 2011 outage which also began with a maintenance mistake and involved a RAS.

Human error, relay Misoperations, and improper RAS performance are three of NERC’s top reliability concerns. Severe penalties may be levied if an electric system outage occurs, and it is found that a BES Cyber System operator did not act upon these Lessons Learned.