The system operator is the person whose primary responsibility is ensuring the reliability of the transmission of electricity over the electrical grid and to consumers. System operators follow established procedures and monitor operational conditions to help ensure reliable service and economical use of resources.

System operators are responsible for complying with the NERC reliability standards.

System operators also prepare and coordinate switching procedures for routine and emergency work on the electric system. In the event of an electric system disturbance or failure, system operators quickly restore service in a safe and orderly manner through switching and radio directions given to field crews.