Sniper attack on power grid
A recently revealed criminal attack upon a Pacific Gas & Electric (PG&E) substations has given lawmakers pause and turned the subject not just to cybersecurity for electric power infrastructure, but physical security.
The Wall Street Journal reported a previously unpublicized 52-minute assault by snipers on PG&E’s Metcalf transmission substation. The assailants fired some 100 bullets into the substation, which knocked 17 transformers out of service.
PG&E was able to stave off a loss of service by diverting to other T&D assets, but utility workers had to spend 27 days repairing the shooters’ damage to the substation area.
The FBI, which is serving as lead agency on the investigation, does not believe the attack was an act of international terrorism. Jon Wellinghoff, who led FERC at the time, said he believed the incident was domestic terror.