GridEx, a distributed play grid exercise that allows participants to engage remotely, simulates a cyber and physical attack on the North American electricity grid and other critical infrastructure. Led by NERC's E‑ISAC, GridEx gives participants a forum to demonstrate how they would respond to and recover from coordinated cyber and physical security threats and incidents.

GridEx offers opportunities for organizations to strengthen crisis communications relationships and provide feedback for lessons learned during the exercise. Additional perspectives on critical security policy issues are gathered at the invitation-only Executive Tabletop from senior executives in industry and government. GridEx V in 2019 included participation from electric utilities, government and law enforcement agencies, and other organizations.

GridEx VI is scheduled for November 16–17, 2021.

While this exercise is not open to the public or media, NERC conducts a media briefing during the exercise. Members of the media may send GridEx inquiries Rachel Sherrard. For general questions on GridEx VI, contact

GridEx VI Fact Sheet

GridEx History

NERC and the E-ISAC apply the outcomes and lessons learned from past GridEx exercises to help improve the security of the North American grid. To learn more about past GridEx exercises, see the public reports posted on the right.



GridEx V Public Report
GridEx IV Public Report
GridEx III Public Report
GridEx II Public Report
GridEx I Public Report