U.S. electric utilities need new tools and regulatory authorizations to protect the power grid from drone attacks, experts and industry groups say.
The issue has taken on new urgency recently. The Department of Homeland Security reportedly urged U.S. energy companies to increase security in response to potential threats from Iran, which has successfully used drones to target American military personnel and assets since the U.S. and Israel launched a war against Iran on Feb. 28.
But power grid asset owners and operators have “growing concern” around “unmanned aircraft systems,” or UAS, attacks and their “ability to protect critical assets and infrastructure,” the North American Electric Reliability Corp. said in a report this week.
The report was an assessment of NERC’s 8th biennial electric grid security exercise — GridEx VIII — held in November to evaluate grid security, including the resilience of the North American electric system in the face of a coordinated attack from a nation-state adversary.
Hundreds of organizations stress-tested emergency preparedness protocols and game-planned responses to hypothetical scenarios. In one of those scenarios, multiple UAS targeted a switchyard at a nuclear generating station and a transformer station.
The report said participants noted that there is a “variety of guidance” from different government agencies on drones regarding what laws and regulations apply to detection, and what technologies can be legally deployed.
“Collaboration between industry and government partners would allow for a better understanding of the concerns that [asset owner or operators] maintain related to [drones] and how the government can support [asset owner or operators] during impending and active threats,” it said.
“Currently, utilities leverage detection capabilities to establish baseline traffic near critical assets but are limited to engaging with [drones] only after they are safely on the ground, which is often too late.”
- Kimberly Mielcarek, Vice President of Corporate and External Communications at the North American Electric Reliability Corporation
Drones have become ubiquitous in modern warfare, from Ukraine to the Middle East. The United States military is finding drones a difficult threat to counter — and even well-funded electric utilities do not have the budget of the U.S. military.
“The electric grid was never designed with aerial threats in mind,” said Charlie O’Connell, chief business officer of Fortem Technologies, an airspace security firm.
In 2021, federal law enforcement issued a warning to state and local officials about an incident the year before where a crashed drone appeared to have been modified to “specifically target energy infrastructure.”
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