The electrical grid has been physically attacked at least four times in Oregon and western Washington since late November, causing growing alarm for law enforcement as well as utilities responsible for parts of the region’s critical infrastructure.
According to information obtained by Oregon Public Broadcasting and KUOW Public Radio, at least two of the incidents bear similarities to the attacks on substations in North Carolina on Saturday that left thousands of people without electricity for days.
Portland General Electric, the Bonneville Power Administration and Puget Sound Energy each confirmed Wednesday a total of four separate attacks on electrical substations they manage in Oregon and Washington. Attackers used firearms in at least some of the incidents in both states, and some power customers in Oregon experienced service disruption as a result of an attack.
All three utilities stated they were cooperating with the Federal Bureau of Investigation. The FBI declined to confirm whether it was investigating.
Four electrical substations in the Pacific Northwest were attacked in recent weeks. Substations convert high-voltage electricity that travels across long-distance transmission lines to the lower voltages used by businesses and residences. Pictured: Bonneville Dam power lines.
Bradley W. Parks / OPB
“The FBI routinely shares information with our law enforcement partners in order to assist in protecting the communities they serve,” Joy Jiras, a spokeswoman for the FBI in Portland said in a statement Wednesday. “We urge the public to remain vigilant and report any suspicious activity to law enforcement.”
Electrical substations are complicated and potentially dangerous parts of the electrical grid that keep the nation’s lights on. Substations convert high-voltage electricity that travels across long-distance transmission lines to the lower voltages used by businesses and residences.
The Bonneville Power Administration, a federal agency that markets hydropower throughout the Pacific Northwest and owns 15,000 miles of transmission line and 200 substations, had confirmed at least one incident by Wednesday evening. The agency called it a “deliberate physical attack” that damaged a substation in Clackamas County, Oregon, early on Thanksgiving morning.
Oregon Public Broadcasting and KUOW obtained an email written by Kenneth Worstell, a security specialist with the Bonneville Power Administration, that details that attack. Two people cut through the fence surrounding a high-voltage substation, then “used firearms to shoot up and disable numerous pieces of equipment and cause significant damage,” Worstell wrote.
Worstell’s memo also referenced “several attacks on various substations,” recently, in western Washington, “including setting the control houses on fire, forced entry and sabotage of intricate electrical control systems, causing short circuits by tossing chains across the overhead buswork, and ballistic attack with small caliber firearms.”
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(“Buswork” is a term for the maze of wires and switches that hum overhead at a substation.)
Worstell stated that online extremist groups are calling for the attacks and providing instructions on how to do it.
“There has been a significant uptick in incidents of break-ins related to copper and tool or materials theft, but now we are dealing with quickly escalating incidents of sabotage,” Worstell wrote.
A spokesperson for Puget Sound Energy, the largest utility in Washington, confirmed two incidents in late November at two of its substations. Spokesperson Gerald Tracy declined to provide locations or any other details, citing an ongoing investigation by the FBI.
“We are aware of recent threats on power systems across the country and take these very seriously,” Tracy said in an email.
In Oregon, a spokesperson for Portland General Electric confirmed an attack on a substation “in the Clackamas area that occurred in late November 2022.” The utility declined to provide specifics of exactly when the incident occurred and what transpired.
Records obtained by Oregon Public Broadcasting and KUOW indicate the incident disrupted electricity in some areas of Clackamas County, knocking some of the county’s computer systems offline. Records show the incident occurred on Nov. 28, four days after the Bonneville Power Administration facility, also in Clackamas County, was damaged.
“Our teams have assessed the damage and begun repair to the impacted facilities,” Portland General Electric’s Allison Dobscha said in a statement Wednesday.
Seattle City Light, the sole power provider for the Northwest’s largest city, said it had not experienced any attacks.
“Because of these attacks, we’re making sure that we’re being extra vigilant,” Seattle City Light spokesperson Jenn Strang said. “We’re being very diligent about enforcing our physical security in and around our critical infrastructure.”
Traffic lights were dark, schools closed, and tens of thousands of people without power for days in central North Carolina after gunfire attacks on two electrical substations in rural Moore County Saturday night.
“What happened here Saturday night was a criminal act, and federal, state and local law enforcement are actively working to bring those responsible to justice,” North Carolina Gov. Roy Cooper said at a press conference on Monday.
After that incident, NewsNation reported that a federal bulletin had warned of attacks on power facilities, noting reports from utilities in Oregon and Washington.
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